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CVE-2023-40549 (GCVE-0-2023-40549)
Vulnerability from cvelistv5 – Published: 2024-01-29 16:29 – Updated: 2025-11-20 19:53
VLAI
EPSS
Title
Shim: out-of-bounds read in verify_buffer_authenticode() malformed pe file
Summary
An out-of-bounds read flaw was found in Shim due to the lack of proper boundary verification during the load of a PE binary. This flaw allows an attacker to load a crafted PE binary, triggering the issue and crashing Shim, resulting in a denial of service.
Severity
6.2 (Medium)
CWE
- CWE-125 - Out-of-bounds Read
Assigner
References
11 references
| URL | Tags |
|---|---|
| https://access.redhat.com/errata/RHSA-2024:1834 | vendor-advisoryx_refsource_REDHAT |
| https://access.redhat.com/errata/RHSA-2024:1835 | vendor-advisoryx_refsource_REDHAT |
| https://access.redhat.com/errata/RHSA-2024:1873 | vendor-advisoryx_refsource_REDHAT |
| https://access.redhat.com/errata/RHSA-2024:1876 | vendor-advisoryx_refsource_REDHAT |
| https://access.redhat.com/errata/RHSA-2024:1883 | vendor-advisoryx_refsource_REDHAT |
| https://access.redhat.com/errata/RHSA-2024:1902 | vendor-advisoryx_refsource_REDHAT |
| https://access.redhat.com/errata/RHSA-2024:1903 | vendor-advisoryx_refsource_REDHAT |
| https://access.redhat.com/errata/RHSA-2024:1959 | vendor-advisoryx_refsource_REDHAT |
| https://access.redhat.com/errata/RHSA-2024:2086 | vendor-advisoryx_refsource_REDHAT |
| https://access.redhat.com/security/cve/CVE-2023-40549 | vdb-entryx_refsource_REDHAT |
| https://bugzilla.redhat.com/show_bug.cgi?id=2241797 | issue-trackingx_refsource_REDHAT |
Impacted products
17 products
| Vendor | Product | Version | |
|---|---|---|---|
| Red Hat | Red Hat Enterprise Linux 7 |
Unaffected:
0:15.8-3.el7 , < *
(rpm)
cpe:/o:redhat:enterprise_linux:7::server cpe:/o:redhat:enterprise_linux:7::workstation cpe:/o:redhat:enterprise_linux:7::client |
|
| Red Hat | Red Hat Enterprise Linux 7 |
Unaffected:
0:15.8-1.el7 , < *
(rpm)
cpe:/o:redhat:enterprise_linux:7::server cpe:/o:redhat:enterprise_linux:7::workstation cpe:/o:redhat:enterprise_linux:7::client |
|
| Red Hat | Red Hat Enterprise Linux 8 |
Unaffected:
0:15.8-4.el8_9 , < *
(rpm)
cpe:/o:redhat:enterprise_linux:8::baseos |
|
| Red Hat | Red Hat Enterprise Linux 8.2 Advanced Update Support |
Unaffected:
0:15.8-2.el8_2 , < *
(rpm)
cpe:/o:redhat:rhel_aus:8.2::baseos cpe:/o:redhat:rhel_e4s:8.2::baseos cpe:/o:redhat:rhel_tus:8.2::baseos |
|
| Red Hat | Red Hat Enterprise Linux 8.2 Telecommunications Update Service |
Unaffected:
0:15.8-2.el8_2 , < *
(rpm)
cpe:/o:redhat:rhel_aus:8.2::baseos cpe:/o:redhat:rhel_e4s:8.2::baseos cpe:/o:redhat:rhel_tus:8.2::baseos |
|
| Red Hat | Red Hat Enterprise Linux 8.2 Update Services for SAP Solutions |
Unaffected:
0:15.8-2.el8_2 , < *
(rpm)
cpe:/o:redhat:rhel_aus:8.2::baseos cpe:/o:redhat:rhel_e4s:8.2::baseos cpe:/o:redhat:rhel_tus:8.2::baseos |
|
| Red Hat | Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support |
Unaffected:
0:15.8-2.el8_4 , < *
(rpm)
cpe:/o:redhat:rhel_tus:8.4::baseos cpe:/o:redhat:rhel_aus:8.4::baseos cpe:/o:redhat:rhel_e4s:8.4::baseos |
|
| Red Hat | Red Hat Enterprise Linux 8.4 Telecommunications Update Service |
Unaffected:
0:15.8-2.el8_4 , < *
(rpm)
cpe:/o:redhat:rhel_tus:8.4::baseos cpe:/o:redhat:rhel_aus:8.4::baseos cpe:/o:redhat:rhel_e4s:8.4::baseos |
|
| Red Hat | Red Hat Enterprise Linux 8.4 Update Services for SAP Solutions |
Unaffected:
0:15.8-2.el8_4 , < *
(rpm)
cpe:/o:redhat:rhel_tus:8.4::baseos cpe:/o:redhat:rhel_aus:8.4::baseos cpe:/o:redhat:rhel_e4s:8.4::baseos |
|
| Red Hat | Red Hat Enterprise Linux 8.6 Extended Update Support |
Unaffected:
0:15.8-2.el8_6 , < *
(rpm)
cpe:/o:redhat:rhel_eus:8.6::baseos |
|
| Red Hat | Red Hat Enterprise Linux 8.8 Extended Update Support |
Unaffected:
0:15.8-2.el8 , < *
(rpm)
cpe:/a:redhat:rhel_eus:8.8::crb cpe:/o:redhat:rhel_eus:8.8::baseos |
|
| Red Hat | Red Hat Enterprise Linux 8.8 Extended Update Support |
Unaffected:
0:15.8-2.el8 , < *
(rpm)
cpe:/a:redhat:rhel_eus:8.8::crb cpe:/o:redhat:rhel_eus:8.8::baseos |
|
| Red Hat | Red Hat Enterprise Linux 9 |
Unaffected:
0:15.8-4.el9_3 , < *
(rpm)
cpe:/o:redhat:enterprise_linux:9::baseos |
|
| Red Hat | Red Hat Enterprise Linux 9.0 Extended Update Support |
Unaffected:
0:15.8-3.el9 , < *
(rpm)
cpe:/o:redhat:rhel_eus:9.0::baseos cpe:/a:redhat:rhel_eus:9.0::appstream cpe:/a:redhat:rhel_eus:9.0::crb |
|
| Red Hat | Red Hat Enterprise Linux 9.0 Extended Update Support |
Unaffected:
0:15.8-2.el9 , < *
(rpm)
cpe:/o:redhat:rhel_eus:9.0::baseos cpe:/a:redhat:rhel_eus:9.0::appstream cpe:/a:redhat:rhel_eus:9.0::crb |
|
| Red Hat | Red Hat Enterprise Linux 9.0 Extended Update Support |
Unaffected:
0:15.8-2.el9 , < *
(rpm)
cpe:/o:redhat:rhel_eus:9.0::baseos cpe:/a:redhat:rhel_eus:9.0::appstream cpe:/a:redhat:rhel_eus:9.0::crb |
|
| Red Hat | Red Hat Enterprise Linux 9.2 Extended Update Support |
Unaffected:
0:15.8-3.el9_2 , < *
(rpm)
cpe:/o:redhat:rhel_eus:9.2::baseos |
Date Public
2024-01-23 00:00
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RHSA-2024:1835
Vulnerability from csaf_redhat - Published: 2024-04-16 13:45 - Updated: 2026-03-18 02:36Summary
Red Hat Security Advisory: shim security update
Severity
Important
Notes
Topic: An update for shim is now available for Red Hat Enterprise Linux 9.0 Extended Update Support.
Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.
Details: The shim package contains a first stage UEFI boot loader that handles chaining to a trusted full boot loader under secure boot environments.
Security Fix(es):
* shim: RCE in http boot support may lead to Secure Boot bypass (CVE-2023-40547)
* shim: Interger overflow leads to heap buffer overflow in verify_sbat_section on 32-bits systems (CVE-2023-40548)
* shim: Out-of-bounds read printing error messages (CVE-2023-40546)
* shim: Out-of-bounds read in verify_buffer_authenticode() malformed PE file (CVE-2023-40549)
* shim: Out-of-bound read in verify_buffer_sbat() (CVE-2023-40550)
* shim: out of bounds read when parsing MZ binaries (CVE-2023-40551)
For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.
Terms of Use: This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Red Hat Inc. and provide a link to the original.
A flaw was found in Shim when an error happened while creating a new ESL variable. If Shim fails to create the new variable, it tries to print an error message to the user; however, the number of parameters used by the logging function doesn't match the format string used by it, leading to a crash under certain circumstances.
6.2 (Medium)
Affected products
Fixed
7 products
| Product | Identifier | Version | Remediation |
|---|---|---|---|
| Unresolved product id: AppStream-9.0.0.Z.EUS:shim-unsigned-aarch64-0:15.8-2.el9.aarch64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: AppStream-9.0.0.Z.EUS:shim-unsigned-aarch64-0:15.8-2.el9.src | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-9.0.0.Z.EUS:shim-0:15.8-3.el9.src | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-9.0.0.Z.EUS:shim-aa64-0:15.8-3.el9.aarch64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-9.0.0.Z.EUS:shim-x64-0:15.8-3.el9.x86_64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: CRB-9.0.0.Z.EUS:shim-unsigned-x64-0:15.8-2.el9.src | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: CRB-9.0.0.Z.EUS:shim-unsigned-x64-0:15.8-2.el9.x86_64 | — |
Vendor Fix
fix
Workaround
|
Threats
Impact
Moderate
A remote code execution vulnerability was found in Shim. The Shim boot support trusts attacker-controlled values when parsing an HTTP response. This flaw allows an attacker to craft a specific malicious HTTP request, leading to a completely controlled out-of-bounds write primitive and complete system compromise. This flaw is only exploitable during the early boot phase, an attacker needs to perform a Man-in-the-Middle or compromise the boot server to be able to exploit this vulnerability successfully.
8.3 (High)
Affected products
Fixed
7 products
| Product | Identifier | Version | Remediation |
|---|---|---|---|
| Unresolved product id: AppStream-9.0.0.Z.EUS:shim-unsigned-aarch64-0:15.8-2.el9.aarch64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: AppStream-9.0.0.Z.EUS:shim-unsigned-aarch64-0:15.8-2.el9.src | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-9.0.0.Z.EUS:shim-0:15.8-3.el9.src | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-9.0.0.Z.EUS:shim-aa64-0:15.8-3.el9.aarch64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-9.0.0.Z.EUS:shim-x64-0:15.8-3.el9.x86_64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: CRB-9.0.0.Z.EUS:shim-unsigned-x64-0:15.8-2.el9.src | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: CRB-9.0.0.Z.EUS:shim-unsigned-x64-0:15.8-2.el9.x86_64 | — |
Vendor Fix
fix
Workaround
|
Threats
Impact
Important
A buffer overflow was found in Shim in the 32-bit system. The overflow happens due to an addition operation involving a user-controlled value parsed from the PE binary being used by Shim. This value is further used for memory allocation operations, leading to a heap-based buffer overflow. This flaw causes memory corruption and can lead to a crash or data integrity issues during the boot phase.
7.4 (High)
Affected products
Fixed
7 products
| Product | Identifier | Version | Remediation |
|---|---|---|---|
| Unresolved product id: AppStream-9.0.0.Z.EUS:shim-unsigned-aarch64-0:15.8-2.el9.aarch64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: AppStream-9.0.0.Z.EUS:shim-unsigned-aarch64-0:15.8-2.el9.src | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-9.0.0.Z.EUS:shim-0:15.8-3.el9.src | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-9.0.0.Z.EUS:shim-aa64-0:15.8-3.el9.aarch64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-9.0.0.Z.EUS:shim-x64-0:15.8-3.el9.x86_64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: CRB-9.0.0.Z.EUS:shim-unsigned-x64-0:15.8-2.el9.src | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: CRB-9.0.0.Z.EUS:shim-unsigned-x64-0:15.8-2.el9.x86_64 | — |
Vendor Fix
fix
Workaround
|
Threats
Impact
Moderate
An out-of-bounds read flaw was found in Shim due to the lack of proper boundary verification during the load of a PE binary. This flaw allows an attacker to load a crafted PE binary, triggering the issue and crashing Shim, resulting in a denial of service.
6.2 (Medium)
Affected products
Fixed
7 products
| Product | Identifier | Version | Remediation |
|---|---|---|---|
| Unresolved product id: AppStream-9.0.0.Z.EUS:shim-unsigned-aarch64-0:15.8-2.el9.aarch64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: AppStream-9.0.0.Z.EUS:shim-unsigned-aarch64-0:15.8-2.el9.src | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-9.0.0.Z.EUS:shim-0:15.8-3.el9.src | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-9.0.0.Z.EUS:shim-aa64-0:15.8-3.el9.aarch64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-9.0.0.Z.EUS:shim-x64-0:15.8-3.el9.x86_64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: CRB-9.0.0.Z.EUS:shim-unsigned-x64-0:15.8-2.el9.src | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: CRB-9.0.0.Z.EUS:shim-unsigned-x64-0:15.8-2.el9.x86_64 | — |
Vendor Fix
fix
Workaround
|
Threats
Impact
Moderate
An out-of-bounds read flaw was found in Shim when it tried to validate the SBAT information. This issue may expose sensitive data during the system's boot phase.
5.5 (Medium)
Affected products
Fixed
7 products
| Product | Identifier | Version | Remediation |
|---|---|---|---|
| Unresolved product id: AppStream-9.0.0.Z.EUS:shim-unsigned-aarch64-0:15.8-2.el9.aarch64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: AppStream-9.0.0.Z.EUS:shim-unsigned-aarch64-0:15.8-2.el9.src | — |
Vendor Fix
fix
|
|
| Unresolved product id: BaseOS-9.0.0.Z.EUS:shim-0:15.8-3.el9.src | — |
Vendor Fix
fix
|
|
| Unresolved product id: BaseOS-9.0.0.Z.EUS:shim-aa64-0:15.8-3.el9.aarch64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: BaseOS-9.0.0.Z.EUS:shim-x64-0:15.8-3.el9.x86_64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: CRB-9.0.0.Z.EUS:shim-unsigned-x64-0:15.8-2.el9.src | — |
Vendor Fix
fix
|
|
| Unresolved product id: CRB-9.0.0.Z.EUS:shim-unsigned-x64-0:15.8-2.el9.x86_64 | — |
Vendor Fix
fix
|
Threats
Impact
Moderate
A flaw was found in the MZ binary format in Shim. An out-of-bounds read may occur, leading to a crash or possible exposure of sensitive data during the system's boot phase.
5.1 (Medium)
Affected products
Fixed
7 products
| Product | Identifier | Version | Remediation |
|---|---|---|---|
| Unresolved product id: AppStream-9.0.0.Z.EUS:shim-unsigned-aarch64-0:15.8-2.el9.aarch64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: AppStream-9.0.0.Z.EUS:shim-unsigned-aarch64-0:15.8-2.el9.src | — |
Vendor Fix
fix
|
|
| Unresolved product id: BaseOS-9.0.0.Z.EUS:shim-0:15.8-3.el9.src | — |
Vendor Fix
fix
|
|
| Unresolved product id: BaseOS-9.0.0.Z.EUS:shim-aa64-0:15.8-3.el9.aarch64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: BaseOS-9.0.0.Z.EUS:shim-x64-0:15.8-3.el9.x86_64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: CRB-9.0.0.Z.EUS:shim-unsigned-x64-0:15.8-2.el9.src | — |
Vendor Fix
fix
|
|
| Unresolved product id: CRB-9.0.0.Z.EUS:shim-unsigned-x64-0:15.8-2.el9.x86_64 | — |
Vendor Fix
fix
|
Threats
Impact
Moderate
References
33 references
Acknowledgments
Microsoft Security Response Center
Bill Demirkapi
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},
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"title": "Statement"
},
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]
},
"references": [
{
"category": "self",
"summary": "Canonical URL",
"url": "https://access.redhat.com/security/cve/CVE-2023-40549"
},
{
"category": "external",
"summary": "RHBZ#2241797",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2241797"
},
{
"category": "external",
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"url": "https://www.cve.org/CVERecord?id=CVE-2023-40549"
},
{
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}
],
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{
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"date": "2024-04-16T13:45:47+00:00",
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],
"restart_required": {
"category": "none"
},
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},
{
"category": "workaround",
"details": "There\u0027s no available mitigation for this issue.",
"product_ids": [
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]
}
],
"scores": [
{
"cvss_v3": {
"attackComplexity": "LOW",
"attackVector": "LOCAL",
"availabilityImpact": "HIGH",
"baseScore": 6.2,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"version": "3.1"
},
"products": [
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"CRB-9.0.0.Z.EUS:shim-unsigned-x64-0:15.8-2.el9.x86_64"
]
}
],
"threats": [
{
"category": "impact",
"details": "Moderate"
}
],
"title": "shim: Out-of-bounds read in verify_buffer_authenticode() malformed PE file"
},
{
"cve": "CVE-2023-40550",
"cwe": {
"id": "CWE-125",
"name": "Out-of-bounds Read"
},
"discovery_date": "2024-01-23T00:00:00+00:00",
"ids": [
{
"system_name": "Red Hat Bugzilla ID",
"text": "2259915"
}
],
"notes": [
{
"category": "description",
"text": "An out-of-bounds read flaw was found in Shim when it tried to validate the SBAT information. This issue may expose sensitive data during the system\u0027s boot phase.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "shim: Out-of-bound read in verify_buffer_sbat()",
"title": "Vulnerability summary"
},
{
"category": "general",
"text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
"title": "CVSS score applicability"
}
],
"product_status": {
"fixed": [
"AppStream-9.0.0.Z.EUS:shim-unsigned-aarch64-0:15.8-2.el9.aarch64",
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},
"references": [
{
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"summary": "Canonical URL",
"url": "https://access.redhat.com/security/cve/CVE-2023-40550"
},
{
"category": "external",
"summary": "RHBZ#2259915",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2259915"
},
{
"category": "external",
"summary": "https://www.cve.org/CVERecord?id=CVE-2023-40550",
"url": "https://www.cve.org/CVERecord?id=CVE-2023-40550"
},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2023-40550",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2023-40550"
}
],
"release_date": "2024-01-23T00:00:00+00:00",
"remediations": [
{
"category": "vendor_fix",
"date": "2024-04-16T13:45:47+00:00",
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"product_ids": [
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],
"restart_required": {
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},
"url": "https://access.redhat.com/errata/RHSA-2024:1835"
}
],
"scores": [
{
"cvss_v3": {
"attackComplexity": "LOW",
"attackVector": "LOCAL",
"availabilityImpact": "NONE",
"baseScore": 5.5,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "HIGH",
"integrityImpact": "NONE",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N",
"version": "3.1"
},
"products": [
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"BaseOS-9.0.0.Z.EUS:shim-0:15.8-3.el9.src",
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]
}
],
"threats": [
{
"category": "impact",
"details": "Moderate"
}
],
"title": "shim: Out-of-bound read in verify_buffer_sbat()"
},
{
"cve": "CVE-2023-40551",
"cwe": {
"id": "CWE-125",
"name": "Out-of-bounds Read"
},
"discovery_date": "2023-07-26T00:00:00+00:00",
"ids": [
{
"system_name": "Red Hat Bugzilla ID",
"text": "2259918"
}
],
"notes": [
{
"category": "description",
"text": "A flaw was found in the MZ binary format in Shim. An out-of-bounds read may occur, leading to a crash or possible exposure of sensitive data during the system\u0027s boot phase.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "shim: out of bounds read when parsing MZ binaries",
"title": "Vulnerability summary"
},
{
"category": "general",
"text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
"title": "CVSS score applicability"
}
],
"product_status": {
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},
{
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},
{
"category": "external",
"summary": "https://www.cve.org/CVERecord?id=CVE-2023-40551",
"url": "https://www.cve.org/CVERecord?id=CVE-2023-40551"
},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2023-40551",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2023-40551"
}
],
"release_date": "2024-01-23T00:00:00+00:00",
"remediations": [
{
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"date": "2024-04-16T13:45:47+00:00",
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"product_ids": [
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}
],
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{
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"attackVector": "LOCAL",
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"baseScore": 5.1,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "LOW",
"integrityImpact": "NONE",
"privilegesRequired": "HIGH",
"scope": "UNCHANGED",
"userInteraction": "NONE",
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]
}
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}
],
"title": "shim: out of bounds read when parsing MZ binaries"
}
]
}
RHSA-2024:1873
Vulnerability from csaf_redhat - Published: 2024-04-18 01:42 - Updated: 2026-03-18 02:37Summary
Red Hat Security Advisory: shim security update
Severity
Important
Notes
Topic: An update for shim is now available for Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support, E4S Red Hat Enterprise Linux 8.4 Update Services for SAP Solutions, and Red Hat Enterprise Linux 8.4 Telecommunications Update Service.
Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.
Details: The shim package contains a first-stage UEFI boot loader that handles chaining
to a trusted full boot loader under secure boot environments.
Security Fix(es):
* shim: RCE in http boot support may lead to Secure Boot bypass (CVE-2023-40547)
* shim: Interger overflow leads to heap buffer overflow in verify_sbat_section
on 32-bits systems (CVE-2023-40548)
* shim: Out-of-bounds read printing error messages (CVE-2023-40546)
* shim: Out-of-bounds read in verify_buffer_authenticode() malformed PE file
(CVE-2023-40549)
* shim: Out-of-bound read in verify_buffer_sbat() (CVE-2023-40550)
* shim: out of bounds read when parsing MZ binaries (CVE-2023-40551)
For more details about the security issue(s), including the impact, a CVSS
score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.
Terms of Use: This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Red Hat Inc. and provide a link to the original.
A flaw was found in Shim when an error happened while creating a new ESL variable. If Shim fails to create the new variable, it tries to print an error message to the user; however, the number of parameters used by the logging function doesn't match the format string used by it, leading to a crash under certain circumstances.
6.2 (Medium)
Affected products
Fixed
9 products
| Product | Identifier | Version | Remediation |
|---|---|---|---|
| Unresolved product id: BaseOS-8.4.0.Z.AUS:shim-0:15.8-2.el8_4.src | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-8.4.0.Z.AUS:shim-ia32-0:15.8-2.el8_4.x86_64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-8.4.0.Z.AUS:shim-x64-0:15.8-2.el8_4.x86_64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-8.4.0.Z.E4S:shim-0:15.8-2.el8_4.src | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-8.4.0.Z.E4S:shim-ia32-0:15.8-2.el8_4.x86_64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-8.4.0.Z.E4S:shim-x64-0:15.8-2.el8_4.x86_64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-8.4.0.Z.TUS:shim-0:15.8-2.el8_4.src | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-8.4.0.Z.TUS:shim-ia32-0:15.8-2.el8_4.x86_64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-8.4.0.Z.TUS:shim-x64-0:15.8-2.el8_4.x86_64 | — |
Vendor Fix
fix
Workaround
|
Threats
Impact
Moderate
A remote code execution vulnerability was found in Shim. The Shim boot support trusts attacker-controlled values when parsing an HTTP response. This flaw allows an attacker to craft a specific malicious HTTP request, leading to a completely controlled out-of-bounds write primitive and complete system compromise. This flaw is only exploitable during the early boot phase, an attacker needs to perform a Man-in-the-Middle or compromise the boot server to be able to exploit this vulnerability successfully.
8.3 (High)
Affected products
Fixed
9 products
| Product | Identifier | Version | Remediation |
|---|---|---|---|
| Unresolved product id: BaseOS-8.4.0.Z.AUS:shim-0:15.8-2.el8_4.src | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-8.4.0.Z.AUS:shim-ia32-0:15.8-2.el8_4.x86_64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-8.4.0.Z.AUS:shim-x64-0:15.8-2.el8_4.x86_64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-8.4.0.Z.E4S:shim-0:15.8-2.el8_4.src | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-8.4.0.Z.E4S:shim-ia32-0:15.8-2.el8_4.x86_64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-8.4.0.Z.E4S:shim-x64-0:15.8-2.el8_4.x86_64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-8.4.0.Z.TUS:shim-0:15.8-2.el8_4.src | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-8.4.0.Z.TUS:shim-ia32-0:15.8-2.el8_4.x86_64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-8.4.0.Z.TUS:shim-x64-0:15.8-2.el8_4.x86_64 | — |
Vendor Fix
fix
Workaround
|
Threats
Impact
Important
A buffer overflow was found in Shim in the 32-bit system. The overflow happens due to an addition operation involving a user-controlled value parsed from the PE binary being used by Shim. This value is further used for memory allocation operations, leading to a heap-based buffer overflow. This flaw causes memory corruption and can lead to a crash or data integrity issues during the boot phase.
7.4 (High)
Affected products
Fixed
9 products
| Product | Identifier | Version | Remediation |
|---|---|---|---|
| Unresolved product id: BaseOS-8.4.0.Z.AUS:shim-0:15.8-2.el8_4.src | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-8.4.0.Z.AUS:shim-ia32-0:15.8-2.el8_4.x86_64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-8.4.0.Z.AUS:shim-x64-0:15.8-2.el8_4.x86_64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-8.4.0.Z.E4S:shim-0:15.8-2.el8_4.src | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-8.4.0.Z.E4S:shim-ia32-0:15.8-2.el8_4.x86_64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-8.4.0.Z.E4S:shim-x64-0:15.8-2.el8_4.x86_64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-8.4.0.Z.TUS:shim-0:15.8-2.el8_4.src | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-8.4.0.Z.TUS:shim-ia32-0:15.8-2.el8_4.x86_64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-8.4.0.Z.TUS:shim-x64-0:15.8-2.el8_4.x86_64 | — |
Vendor Fix
fix
Workaround
|
Threats
Impact
Moderate
An out-of-bounds read flaw was found in Shim due to the lack of proper boundary verification during the load of a PE binary. This flaw allows an attacker to load a crafted PE binary, triggering the issue and crashing Shim, resulting in a denial of service.
6.2 (Medium)
Affected products
Fixed
9 products
| Product | Identifier | Version | Remediation |
|---|---|---|---|
| Unresolved product id: BaseOS-8.4.0.Z.AUS:shim-0:15.8-2.el8_4.src | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-8.4.0.Z.AUS:shim-ia32-0:15.8-2.el8_4.x86_64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-8.4.0.Z.AUS:shim-x64-0:15.8-2.el8_4.x86_64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-8.4.0.Z.E4S:shim-0:15.8-2.el8_4.src | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-8.4.0.Z.E4S:shim-ia32-0:15.8-2.el8_4.x86_64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-8.4.0.Z.E4S:shim-x64-0:15.8-2.el8_4.x86_64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-8.4.0.Z.TUS:shim-0:15.8-2.el8_4.src | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-8.4.0.Z.TUS:shim-ia32-0:15.8-2.el8_4.x86_64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-8.4.0.Z.TUS:shim-x64-0:15.8-2.el8_4.x86_64 | — |
Vendor Fix
fix
Workaround
|
Threats
Impact
Moderate
An out-of-bounds read flaw was found in Shim when it tried to validate the SBAT information. This issue may expose sensitive data during the system's boot phase.
5.5 (Medium)
Affected products
Fixed
9 products
| Product | Identifier | Version | Remediation |
|---|---|---|---|
| Unresolved product id: BaseOS-8.4.0.Z.AUS:shim-0:15.8-2.el8_4.src | — |
Vendor Fix
fix
|
|
| Unresolved product id: BaseOS-8.4.0.Z.AUS:shim-ia32-0:15.8-2.el8_4.x86_64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: BaseOS-8.4.0.Z.AUS:shim-x64-0:15.8-2.el8_4.x86_64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: BaseOS-8.4.0.Z.E4S:shim-0:15.8-2.el8_4.src | — |
Vendor Fix
fix
|
|
| Unresolved product id: BaseOS-8.4.0.Z.E4S:shim-ia32-0:15.8-2.el8_4.x86_64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: BaseOS-8.4.0.Z.E4S:shim-x64-0:15.8-2.el8_4.x86_64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: BaseOS-8.4.0.Z.TUS:shim-0:15.8-2.el8_4.src | — |
Vendor Fix
fix
|
|
| Unresolved product id: BaseOS-8.4.0.Z.TUS:shim-ia32-0:15.8-2.el8_4.x86_64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: BaseOS-8.4.0.Z.TUS:shim-x64-0:15.8-2.el8_4.x86_64 | — |
Vendor Fix
fix
|
Threats
Impact
Moderate
A flaw was found in the MZ binary format in Shim. An out-of-bounds read may occur, leading to a crash or possible exposure of sensitive data during the system's boot phase.
5.1 (Medium)
Affected products
Fixed
9 products
| Product | Identifier | Version | Remediation |
|---|---|---|---|
| Unresolved product id: BaseOS-8.4.0.Z.AUS:shim-0:15.8-2.el8_4.src | — |
Vendor Fix
fix
|
|
| Unresolved product id: BaseOS-8.4.0.Z.AUS:shim-ia32-0:15.8-2.el8_4.x86_64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: BaseOS-8.4.0.Z.AUS:shim-x64-0:15.8-2.el8_4.x86_64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: BaseOS-8.4.0.Z.E4S:shim-0:15.8-2.el8_4.src | — |
Vendor Fix
fix
|
|
| Unresolved product id: BaseOS-8.4.0.Z.E4S:shim-ia32-0:15.8-2.el8_4.x86_64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: BaseOS-8.4.0.Z.E4S:shim-x64-0:15.8-2.el8_4.x86_64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: BaseOS-8.4.0.Z.TUS:shim-0:15.8-2.el8_4.src | — |
Vendor Fix
fix
|
|
| Unresolved product id: BaseOS-8.4.0.Z.TUS:shim-ia32-0:15.8-2.el8_4.x86_64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: BaseOS-8.4.0.Z.TUS:shim-x64-0:15.8-2.el8_4.x86_64 | — |
Vendor Fix
fix
|
Threats
Impact
Moderate
References
33 references
Acknowledgments
Microsoft Security Response Center
Bill Demirkapi
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"vulnerabilities": [
{
"cve": "CVE-2023-40546",
"cwe": {
"id": "CWE-476",
"name": "NULL Pointer Dereference"
},
"discovery_date": "2023-10-02T00:00:00+00:00",
"ids": [
{
"system_name": "Red Hat Bugzilla ID",
"text": "2241796"
}
],
"notes": [
{
"category": "description",
"text": "A flaw was found in Shim when an error happened while creating a new ESL variable. If Shim fails to create the new variable, it tries to print an error message to the user; however, the number of parameters used by the logging function doesn\u0027t match the format string used by it, leading to a crash under certain circumstances.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "shim: Out-of-bounds read printing error messages",
"title": "Vulnerability summary"
},
{
"category": "general",
"text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
"title": "CVSS score applicability"
}
],
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"summary": "Canonical URL",
"url": "https://access.redhat.com/security/cve/CVE-2023-40546"
},
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"url": "https://www.cve.org/CVERecord?id=CVE-2023-40546"
},
{
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}
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"release_date": "2024-01-23T00:00:00+00:00",
"remediations": [
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},
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RHSA-2024:1876
Vulnerability from csaf_redhat - Published: 2024-04-18 01:47 - Updated: 2026-03-18 02:37Summary
Red Hat Security Advisory: shim bug fix update
Severity
Important
Notes
Topic: An update for shim is now available for Red Hat Enterprise Linux 9.2 Extended Update Support.
Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.
Details: The shim package contains a first-stage UEFI boot loader that handles chaining to a trusted full boot loader under secure boot environments.
Security Fix(es):
* shim: RCE in http boot support may lead to Secure Boot bypass (CVE-2023-40547)
* shim: Interger overflow leads to heap buffer overflow in verify_sbat_section on 32-bits systems (CVE-2023-40548)
* shim: Out-of-bounds read printing error messages (CVE-2023-40546)
* shim: Out-of-bounds read in verify_buffer_authenticode() malformed PE file (CVE-2023-40549)
* shim: Out-of-bound read in verify_buffer_sbat() (CVE-2023-40550)
* shim: out of bounds read when parsing MZ binaries (CVE-2023-40551)
For more details about the security issue(s), including the impact, a CVSS
score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.
Terms of Use: This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Red Hat Inc. and provide a link to the original.
A flaw was found in Shim when an error happened while creating a new ESL variable. If Shim fails to create the new variable, it tries to print an error message to the user; however, the number of parameters used by the logging function doesn't match the format string used by it, leading to a crash under certain circumstances.
6.2 (Medium)
Affected products
Fixed
3 products
| Product | Identifier | Version | Remediation |
|---|---|---|---|
| Unresolved product id: BaseOS-9.2.0.Z.EUS:shim-0:15.8-3.el9_2.src | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-9.2.0.Z.EUS:shim-aa64-0:15.8-3.el9_2.aarch64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-9.2.0.Z.EUS:shim-x64-0:15.8-3.el9_2.x86_64 | — |
Vendor Fix
fix
Workaround
|
Threats
Impact
Moderate
A remote code execution vulnerability was found in Shim. The Shim boot support trusts attacker-controlled values when parsing an HTTP response. This flaw allows an attacker to craft a specific malicious HTTP request, leading to a completely controlled out-of-bounds write primitive and complete system compromise. This flaw is only exploitable during the early boot phase, an attacker needs to perform a Man-in-the-Middle or compromise the boot server to be able to exploit this vulnerability successfully.
8.3 (High)
Affected products
Fixed
3 products
| Product | Identifier | Version | Remediation |
|---|---|---|---|
| Unresolved product id: BaseOS-9.2.0.Z.EUS:shim-0:15.8-3.el9_2.src | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-9.2.0.Z.EUS:shim-aa64-0:15.8-3.el9_2.aarch64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-9.2.0.Z.EUS:shim-x64-0:15.8-3.el9_2.x86_64 | — |
Vendor Fix
fix
Workaround
|
Threats
Impact
Important
A buffer overflow was found in Shim in the 32-bit system. The overflow happens due to an addition operation involving a user-controlled value parsed from the PE binary being used by Shim. This value is further used for memory allocation operations, leading to a heap-based buffer overflow. This flaw causes memory corruption and can lead to a crash or data integrity issues during the boot phase.
7.4 (High)
Affected products
Fixed
3 products
| Product | Identifier | Version | Remediation |
|---|---|---|---|
| Unresolved product id: BaseOS-9.2.0.Z.EUS:shim-0:15.8-3.el9_2.src | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-9.2.0.Z.EUS:shim-aa64-0:15.8-3.el9_2.aarch64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-9.2.0.Z.EUS:shim-x64-0:15.8-3.el9_2.x86_64 | — |
Vendor Fix
fix
Workaround
|
Threats
Impact
Moderate
An out-of-bounds read flaw was found in Shim due to the lack of proper boundary verification during the load of a PE binary. This flaw allows an attacker to load a crafted PE binary, triggering the issue and crashing Shim, resulting in a denial of service.
6.2 (Medium)
Affected products
Fixed
3 products
| Product | Identifier | Version | Remediation |
|---|---|---|---|
| Unresolved product id: BaseOS-9.2.0.Z.EUS:shim-0:15.8-3.el9_2.src | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-9.2.0.Z.EUS:shim-aa64-0:15.8-3.el9_2.aarch64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-9.2.0.Z.EUS:shim-x64-0:15.8-3.el9_2.x86_64 | — |
Vendor Fix
fix
Workaround
|
Threats
Impact
Moderate
An out-of-bounds read flaw was found in Shim when it tried to validate the SBAT information. This issue may expose sensitive data during the system's boot phase.
5.5 (Medium)
Affected products
Fixed
3 products
| Product | Identifier | Version | Remediation |
|---|---|---|---|
| Unresolved product id: BaseOS-9.2.0.Z.EUS:shim-0:15.8-3.el9_2.src | — |
Vendor Fix
fix
|
|
| Unresolved product id: BaseOS-9.2.0.Z.EUS:shim-aa64-0:15.8-3.el9_2.aarch64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: BaseOS-9.2.0.Z.EUS:shim-x64-0:15.8-3.el9_2.x86_64 | — |
Vendor Fix
fix
|
Threats
Impact
Moderate
A flaw was found in the MZ binary format in Shim. An out-of-bounds read may occur, leading to a crash or possible exposure of sensitive data during the system's boot phase.
5.1 (Medium)
Affected products
Fixed
3 products
| Product | Identifier | Version | Remediation |
|---|---|---|---|
| Unresolved product id: BaseOS-9.2.0.Z.EUS:shim-0:15.8-3.el9_2.src | — |
Vendor Fix
fix
|
|
| Unresolved product id: BaseOS-9.2.0.Z.EUS:shim-aa64-0:15.8-3.el9_2.aarch64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: BaseOS-9.2.0.Z.EUS:shim-x64-0:15.8-3.el9_2.x86_64 | — |
Vendor Fix
fix
|
Threats
Impact
Moderate
References
33 references
Acknowledgments
Microsoft Security Response Center
Bill Demirkapi
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{
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"title": "Vulnerability summary"
},
{
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{
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"title": "shim: Out-of-bounds read printing error messages"
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{
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"text": "shim: RCE in http boot support may lead to Secure Boot bypass",
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},
{
"category": "other",
"text": "This flaw is only exploitable when the machine is booting UEFI through the network. During startup, before loading a local boot image, Shim checks whether the system is configured to support network booting. If the check succeeds, Shim attempts to load the bootable image from the boot\u0027s previously configured server using the HTTP protocol, which exposes the system to the vulnerability described by this CVE.",
"title": "Statement"
},
{
"category": "general",
"text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
"title": "CVSS score applicability"
}
],
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{
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"text": "shim: Interger overflow leads to heap buffer overflow in verify_sbat_section on 32-bits systems",
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},
{
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"title": "CVSS score applicability"
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},
{
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RHSA-2024:1883
Vulnerability from csaf_redhat - Published: 2024-04-18 01:56 - Updated: 2026-03-18 02:36Summary
Red Hat Security Advisory: shim security update
Severity
Important
Notes
Topic: An update for shim is now available for Red Hat Enterprise Linux 8.8 Extended
Update Support.
Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.
Details: The shim package contains a first-stage UEFI boot loader that handles chaining
to a trusted full boot loader under secure boot environments.
Security Fix(es):
* shim: RCE in http boot support may lead to Secure Boot bypass (CVE-2023-40547)
* shim: Interger overflow leads to heap buffer overflow in verify_sbat_section
on 32-bits systems (CVE-2023-40548)
* shim: Out-of-bounds read printing error messages (CVE-2023-40546)
* shim: Out-of-bounds read in verify_buffer_authenticode() malformed PE file
(CVE-2023-40549)
* shim: Out-of-bound read in verify_buffer_sbat() (CVE-2023-40550)
* shim: out of bounds read when parsing MZ binaries (CVE-2023-40551)
For more details about the security issue(s), including the impact, a CVSS
score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.
Terms of Use: This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Red Hat Inc. and provide a link to the original.
A flaw was found in Shim when an error happened while creating a new ESL variable. If Shim fails to create the new variable, it tries to print an error message to the user; however, the number of parameters used by the logging function doesn't match the format string used by it, leading to a crash under certain circumstances.
6.2 (Medium)
Affected products
Fixed
6 products
| Product | Identifier | Version | Remediation |
|---|---|---|---|
| Unresolved product id: BaseOS-8.8.0.Z.EUS:shim-0:15.8-2.el8.src | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-8.8.0.Z.EUS:shim-aa64-0:15.8-2.el8.aarch64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-8.8.0.Z.EUS:shim-ia32-0:15.8-2.el8.x86_64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-8.8.0.Z.EUS:shim-x64-0:15.8-2.el8.x86_64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: CRB-8.8.0.Z.EUS:shim-unsigned-x64-0:15.8-2.el8.src | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: CRB-8.8.0.Z.EUS:shim-unsigned-x64-0:15.8-2.el8.x86_64 | — |
Vendor Fix
fix
Workaround
|
Threats
Impact
Moderate
A remote code execution vulnerability was found in Shim. The Shim boot support trusts attacker-controlled values when parsing an HTTP response. This flaw allows an attacker to craft a specific malicious HTTP request, leading to a completely controlled out-of-bounds write primitive and complete system compromise. This flaw is only exploitable during the early boot phase, an attacker needs to perform a Man-in-the-Middle or compromise the boot server to be able to exploit this vulnerability successfully.
8.3 (High)
Affected products
Fixed
6 products
| Product | Identifier | Version | Remediation |
|---|---|---|---|
| Unresolved product id: BaseOS-8.8.0.Z.EUS:shim-0:15.8-2.el8.src | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-8.8.0.Z.EUS:shim-aa64-0:15.8-2.el8.aarch64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-8.8.0.Z.EUS:shim-ia32-0:15.8-2.el8.x86_64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-8.8.0.Z.EUS:shim-x64-0:15.8-2.el8.x86_64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: CRB-8.8.0.Z.EUS:shim-unsigned-x64-0:15.8-2.el8.src | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: CRB-8.8.0.Z.EUS:shim-unsigned-x64-0:15.8-2.el8.x86_64 | — |
Vendor Fix
fix
Workaround
|
Threats
Impact
Important
A buffer overflow was found in Shim in the 32-bit system. The overflow happens due to an addition operation involving a user-controlled value parsed from the PE binary being used by Shim. This value is further used for memory allocation operations, leading to a heap-based buffer overflow. This flaw causes memory corruption and can lead to a crash or data integrity issues during the boot phase.
7.4 (High)
Affected products
Fixed
6 products
| Product | Identifier | Version | Remediation |
|---|---|---|---|
| Unresolved product id: BaseOS-8.8.0.Z.EUS:shim-0:15.8-2.el8.src | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-8.8.0.Z.EUS:shim-aa64-0:15.8-2.el8.aarch64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-8.8.0.Z.EUS:shim-ia32-0:15.8-2.el8.x86_64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-8.8.0.Z.EUS:shim-x64-0:15.8-2.el8.x86_64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: CRB-8.8.0.Z.EUS:shim-unsigned-x64-0:15.8-2.el8.src | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: CRB-8.8.0.Z.EUS:shim-unsigned-x64-0:15.8-2.el8.x86_64 | — |
Vendor Fix
fix
Workaround
|
Threats
Impact
Moderate
An out-of-bounds read flaw was found in Shim due to the lack of proper boundary verification during the load of a PE binary. This flaw allows an attacker to load a crafted PE binary, triggering the issue and crashing Shim, resulting in a denial of service.
6.2 (Medium)
Affected products
Fixed
6 products
| Product | Identifier | Version | Remediation |
|---|---|---|---|
| Unresolved product id: BaseOS-8.8.0.Z.EUS:shim-0:15.8-2.el8.src | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-8.8.0.Z.EUS:shim-aa64-0:15.8-2.el8.aarch64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-8.8.0.Z.EUS:shim-ia32-0:15.8-2.el8.x86_64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-8.8.0.Z.EUS:shim-x64-0:15.8-2.el8.x86_64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: CRB-8.8.0.Z.EUS:shim-unsigned-x64-0:15.8-2.el8.src | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: CRB-8.8.0.Z.EUS:shim-unsigned-x64-0:15.8-2.el8.x86_64 | — |
Vendor Fix
fix
Workaround
|
Threats
Impact
Moderate
An out-of-bounds read flaw was found in Shim when it tried to validate the SBAT information. This issue may expose sensitive data during the system's boot phase.
5.5 (Medium)
Affected products
Fixed
6 products
| Product | Identifier | Version | Remediation |
|---|---|---|---|
| Unresolved product id: BaseOS-8.8.0.Z.EUS:shim-0:15.8-2.el8.src | — |
Vendor Fix
fix
|
|
| Unresolved product id: BaseOS-8.8.0.Z.EUS:shim-aa64-0:15.8-2.el8.aarch64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: BaseOS-8.8.0.Z.EUS:shim-ia32-0:15.8-2.el8.x86_64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: BaseOS-8.8.0.Z.EUS:shim-x64-0:15.8-2.el8.x86_64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: CRB-8.8.0.Z.EUS:shim-unsigned-x64-0:15.8-2.el8.src | — |
Vendor Fix
fix
|
|
| Unresolved product id: CRB-8.8.0.Z.EUS:shim-unsigned-x64-0:15.8-2.el8.x86_64 | — |
Vendor Fix
fix
|
Threats
Impact
Moderate
A flaw was found in the MZ binary format in Shim. An out-of-bounds read may occur, leading to a crash or possible exposure of sensitive data during the system's boot phase.
5.1 (Medium)
Affected products
Fixed
6 products
| Product | Identifier | Version | Remediation |
|---|---|---|---|
| Unresolved product id: BaseOS-8.8.0.Z.EUS:shim-0:15.8-2.el8.src | — |
Vendor Fix
fix
|
|
| Unresolved product id: BaseOS-8.8.0.Z.EUS:shim-aa64-0:15.8-2.el8.aarch64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: BaseOS-8.8.0.Z.EUS:shim-ia32-0:15.8-2.el8.x86_64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: BaseOS-8.8.0.Z.EUS:shim-x64-0:15.8-2.el8.x86_64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: CRB-8.8.0.Z.EUS:shim-unsigned-x64-0:15.8-2.el8.src | — |
Vendor Fix
fix
|
|
| Unresolved product id: CRB-8.8.0.Z.EUS:shim-unsigned-x64-0:15.8-2.el8.x86_64 | — |
Vendor Fix
fix
|
Threats
Impact
Moderate
References
33 references
Acknowledgments
Microsoft Security Response Center
Bill Demirkapi
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"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H",
"version": "3.1"
},
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}
],
"threats": [
{
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"details": "Moderate"
}
],
"title": "shim: Interger overflow leads to heap buffer overflow in verify_sbat_section on 32-bits systems"
},
{
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"cwe": {
"id": "CWE-125",
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},
"discovery_date": "2023-10-02T00:00:00+00:00",
"ids": [
{
"system_name": "Red Hat Bugzilla ID",
"text": "2241797"
}
],
"notes": [
{
"category": "description",
"text": "An out-of-bounds read flaw was found in Shim due to the lack of proper boundary verification during the load of a PE binary. This flaw allows an attacker to load a crafted PE binary, triggering the issue and crashing Shim, resulting in a denial of service.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "shim: Out-of-bounds read in verify_buffer_authenticode() malformed PE file",
"title": "Vulnerability summary"
},
{
"category": "general",
"text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
"title": "CVSS score applicability"
}
],
"product_status": {
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},
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},
{
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"url": "https://www.cve.org/CVERecord?id=CVE-2023-40549"
},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2023-40549",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2023-40549"
}
],
"release_date": "2024-01-23T00:00:00+00:00",
"remediations": [
{
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"date": "2024-04-18T01:56:22+00:00",
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"restart_required": {
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},
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},
{
"category": "workaround",
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}
],
"scores": [
{
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"attackVector": "LOCAL",
"availabilityImpact": "HIGH",
"baseScore": 6.2,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"version": "3.1"
},
"products": [
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]
}
],
"threats": [
{
"category": "impact",
"details": "Moderate"
}
],
"title": "shim: Out-of-bounds read in verify_buffer_authenticode() malformed PE file"
},
{
"cve": "CVE-2023-40550",
"cwe": {
"id": "CWE-125",
"name": "Out-of-bounds Read"
},
"discovery_date": "2024-01-23T00:00:00+00:00",
"ids": [
{
"system_name": "Red Hat Bugzilla ID",
"text": "2259915"
}
],
"notes": [
{
"category": "description",
"text": "An out-of-bounds read flaw was found in Shim when it tried to validate the SBAT information. This issue may expose sensitive data during the system\u0027s boot phase.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "shim: Out-of-bound read in verify_buffer_sbat()",
"title": "Vulnerability summary"
},
{
"category": "general",
"text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
"title": "CVSS score applicability"
}
],
"product_status": {
"fixed": [
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]
},
"references": [
{
"category": "self",
"summary": "Canonical URL",
"url": "https://access.redhat.com/security/cve/CVE-2023-40550"
},
{
"category": "external",
"summary": "RHBZ#2259915",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2259915"
},
{
"category": "external",
"summary": "https://www.cve.org/CVERecord?id=CVE-2023-40550",
"url": "https://www.cve.org/CVERecord?id=CVE-2023-40550"
},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2023-40550",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2023-40550"
}
],
"release_date": "2024-01-23T00:00:00+00:00",
"remediations": [
{
"category": "vendor_fix",
"date": "2024-04-18T01:56:22+00:00",
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"product_ids": [
"BaseOS-8.8.0.Z.EUS:shim-0:15.8-2.el8.src",
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],
"restart_required": {
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},
"url": "https://access.redhat.com/errata/RHSA-2024:1883"
}
],
"scores": [
{
"cvss_v3": {
"attackComplexity": "LOW",
"attackVector": "LOCAL",
"availabilityImpact": "NONE",
"baseScore": 5.5,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "HIGH",
"integrityImpact": "NONE",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N",
"version": "3.1"
},
"products": [
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]
}
],
"threats": [
{
"category": "impact",
"details": "Moderate"
}
],
"title": "shim: Out-of-bound read in verify_buffer_sbat()"
},
{
"cve": "CVE-2023-40551",
"cwe": {
"id": "CWE-125",
"name": "Out-of-bounds Read"
},
"discovery_date": "2023-07-26T00:00:00+00:00",
"ids": [
{
"system_name": "Red Hat Bugzilla ID",
"text": "2259918"
}
],
"notes": [
{
"category": "description",
"text": "A flaw was found in the MZ binary format in Shim. An out-of-bounds read may occur, leading to a crash or possible exposure of sensitive data during the system\u0027s boot phase.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "shim: out of bounds read when parsing MZ binaries",
"title": "Vulnerability summary"
},
{
"category": "general",
"text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
"title": "CVSS score applicability"
}
],
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},
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"category": "external",
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},
{
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"url": "https://www.cve.org/CVERecord?id=CVE-2023-40551"
},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2023-40551",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2023-40551"
}
],
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{
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{
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"privilegesRequired": "HIGH",
"scope": "UNCHANGED",
"userInteraction": "NONE",
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],
"title": "shim: out of bounds read when parsing MZ binaries"
}
]
}
RHSA-2024:1902
Vulnerability from csaf_redhat - Published: 2024-04-18 17:44 - Updated: 2026-03-18 02:37Summary
Red Hat Security Advisory: shim security update
Severity
Important
Notes
Topic: An update for shim is now available for Red Hat Enterprise Linux 8.
Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.
Details: The shim package contains a first-stage UEFI boot loader that handles chaining
to a trusted full boot loader under secure boot environments.
Security Fix(es):
* shim: RCE in http boot support may lead to Secure Boot bypass (CVE-2023-40547)
* shim: Interger overflow leads to heap buffer overflow in verify_sbat_section
on 32-bits systems (CVE-2023-40548)
* shim: Out-of-bounds read printing error messages (CVE-2023-40546)
* shim: Out-of-bounds read in verify_buffer_authenticode() malformed PE file
(CVE-2023-40549)
* shim: Out-of-bound read in verify_buffer_sbat() (CVE-2023-40550)
* shim: out of bounds read when parsing MZ binaries (CVE-2023-40551)
For more details about the security issue(s), including the impact, a CVSS
score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.
Terms of Use: This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Red Hat Inc. and provide a link to the original.
A flaw was found in Shim when an error happened while creating a new ESL variable. If Shim fails to create the new variable, it tries to print an error message to the user; however, the number of parameters used by the logging function doesn't match the format string used by it, leading to a crash under certain circumstances.
6.2 (Medium)
Affected products
Fixed
4 products
| Product | Identifier | Version | Remediation |
|---|---|---|---|
| Unresolved product id: BaseOS-8.9.0.Z.MAIN:shim-0:15.8-4.el8_9.src | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-8.9.0.Z.MAIN:shim-aa64-0:15.8-4.el8_9.aarch64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-8.9.0.Z.MAIN:shim-ia32-0:15.8-4.el8_9.x86_64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-8.9.0.Z.MAIN:shim-x64-0:15.8-4.el8_9.x86_64 | — |
Vendor Fix
fix
Workaround
|
Threats
Impact
Moderate
A remote code execution vulnerability was found in Shim. The Shim boot support trusts attacker-controlled values when parsing an HTTP response. This flaw allows an attacker to craft a specific malicious HTTP request, leading to a completely controlled out-of-bounds write primitive and complete system compromise. This flaw is only exploitable during the early boot phase, an attacker needs to perform a Man-in-the-Middle or compromise the boot server to be able to exploit this vulnerability successfully.
8.3 (High)
Affected products
Fixed
4 products
| Product | Identifier | Version | Remediation |
|---|---|---|---|
| Unresolved product id: BaseOS-8.9.0.Z.MAIN:shim-0:15.8-4.el8_9.src | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-8.9.0.Z.MAIN:shim-aa64-0:15.8-4.el8_9.aarch64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-8.9.0.Z.MAIN:shim-ia32-0:15.8-4.el8_9.x86_64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-8.9.0.Z.MAIN:shim-x64-0:15.8-4.el8_9.x86_64 | — |
Vendor Fix
fix
Workaround
|
Threats
Impact
Important
A buffer overflow was found in Shim in the 32-bit system. The overflow happens due to an addition operation involving a user-controlled value parsed from the PE binary being used by Shim. This value is further used for memory allocation operations, leading to a heap-based buffer overflow. This flaw causes memory corruption and can lead to a crash or data integrity issues during the boot phase.
7.4 (High)
Affected products
Fixed
4 products
| Product | Identifier | Version | Remediation |
|---|---|---|---|
| Unresolved product id: BaseOS-8.9.0.Z.MAIN:shim-0:15.8-4.el8_9.src | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-8.9.0.Z.MAIN:shim-aa64-0:15.8-4.el8_9.aarch64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-8.9.0.Z.MAIN:shim-ia32-0:15.8-4.el8_9.x86_64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-8.9.0.Z.MAIN:shim-x64-0:15.8-4.el8_9.x86_64 | — |
Vendor Fix
fix
Workaround
|
Threats
Impact
Moderate
An out-of-bounds read flaw was found in Shim due to the lack of proper boundary verification during the load of a PE binary. This flaw allows an attacker to load a crafted PE binary, triggering the issue and crashing Shim, resulting in a denial of service.
6.2 (Medium)
Affected products
Fixed
4 products
| Product | Identifier | Version | Remediation |
|---|---|---|---|
| Unresolved product id: BaseOS-8.9.0.Z.MAIN:shim-0:15.8-4.el8_9.src | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-8.9.0.Z.MAIN:shim-aa64-0:15.8-4.el8_9.aarch64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-8.9.0.Z.MAIN:shim-ia32-0:15.8-4.el8_9.x86_64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-8.9.0.Z.MAIN:shim-x64-0:15.8-4.el8_9.x86_64 | — |
Vendor Fix
fix
Workaround
|
Threats
Impact
Moderate
An out-of-bounds read flaw was found in Shim when it tried to validate the SBAT information. This issue may expose sensitive data during the system's boot phase.
5.5 (Medium)
Affected products
Fixed
4 products
| Product | Identifier | Version | Remediation |
|---|---|---|---|
| Unresolved product id: BaseOS-8.9.0.Z.MAIN:shim-0:15.8-4.el8_9.src | — |
Vendor Fix
fix
|
|
| Unresolved product id: BaseOS-8.9.0.Z.MAIN:shim-aa64-0:15.8-4.el8_9.aarch64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: BaseOS-8.9.0.Z.MAIN:shim-ia32-0:15.8-4.el8_9.x86_64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: BaseOS-8.9.0.Z.MAIN:shim-x64-0:15.8-4.el8_9.x86_64 | — |
Vendor Fix
fix
|
Threats
Impact
Moderate
A flaw was found in the MZ binary format in Shim. An out-of-bounds read may occur, leading to a crash or possible exposure of sensitive data during the system's boot phase.
5.1 (Medium)
Affected products
Fixed
4 products
| Product | Identifier | Version | Remediation |
|---|---|---|---|
| Unresolved product id: BaseOS-8.9.0.Z.MAIN:shim-0:15.8-4.el8_9.src | — |
Vendor Fix
fix
|
|
| Unresolved product id: BaseOS-8.9.0.Z.MAIN:shim-aa64-0:15.8-4.el8_9.aarch64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: BaseOS-8.9.0.Z.MAIN:shim-ia32-0:15.8-4.el8_9.x86_64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: BaseOS-8.9.0.Z.MAIN:shim-x64-0:15.8-4.el8_9.x86_64 | — |
Vendor Fix
fix
|
Threats
Impact
Moderate
References
33 references
Acknowledgments
Microsoft Security Response Center
Bill Demirkapi
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},
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RHSA-2024:1903
Vulnerability from csaf_redhat - Published: 2024-04-18 17:42 - Updated: 2026-03-18 02:38Summary
Red Hat Security Advisory: shim bug fix update
Severity
Important
Notes
Topic: An update for shim is now available for Red Hat Enterprise Linux 9.
Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.
Details: The shim package contains a first-stage UEFI boot loader that handles chaining
to a trusted full boot loader under secure boot environments.
Security Fix(es):
* shim: RCE in http boot support may lead to Secure Boot bypass (CVE-2023-40547)
* shim: Interger overflow leads to heap buffer overflow in verify_sbat_section
on 32-bits systems (CVE-2023-40548)
* shim: Out-of-bounds read printing error messages (CVE-2023-40546)
* shim: Out-of-bounds read in verify_buffer_authenticode() malformed PE file
(CVE-2023-40549)
* shim: Out-of-bound read in verify_buffer_sbat() (CVE-2023-40550)
* shim: out of bounds read when parsing MZ binaries (CVE-2023-40551)
For more details about the security issue(s), including the impact, a CVSS
score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.
Terms of Use: This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Red Hat Inc. and provide a link to the original.
A flaw was found in Shim when an error happened while creating a new ESL variable. If Shim fails to create the new variable, it tries to print an error message to the user; however, the number of parameters used by the logging function doesn't match the format string used by it, leading to a crash under certain circumstances.
6.2 (Medium)
Affected products
Fixed
3 products
| Product | Identifier | Version | Remediation |
|---|---|---|---|
| Unresolved product id: BaseOS-9.3.0.Z.MAIN:shim-0:15.8-4.el9_3.src | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-9.3.0.Z.MAIN:shim-aa64-0:15.8-4.el9_3.aarch64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-9.3.0.Z.MAIN:shim-x64-0:15.8-4.el9_3.x86_64 | — |
Vendor Fix
fix
Workaround
|
Threats
Impact
Moderate
A remote code execution vulnerability was found in Shim. The Shim boot support trusts attacker-controlled values when parsing an HTTP response. This flaw allows an attacker to craft a specific malicious HTTP request, leading to a completely controlled out-of-bounds write primitive and complete system compromise. This flaw is only exploitable during the early boot phase, an attacker needs to perform a Man-in-the-Middle or compromise the boot server to be able to exploit this vulnerability successfully.
8.3 (High)
Affected products
Fixed
3 products
| Product | Identifier | Version | Remediation |
|---|---|---|---|
| Unresolved product id: BaseOS-9.3.0.Z.MAIN:shim-0:15.8-4.el9_3.src | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-9.3.0.Z.MAIN:shim-aa64-0:15.8-4.el9_3.aarch64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-9.3.0.Z.MAIN:shim-x64-0:15.8-4.el9_3.x86_64 | — |
Vendor Fix
fix
Workaround
|
Threats
Impact
Important
A buffer overflow was found in Shim in the 32-bit system. The overflow happens due to an addition operation involving a user-controlled value parsed from the PE binary being used by Shim. This value is further used for memory allocation operations, leading to a heap-based buffer overflow. This flaw causes memory corruption and can lead to a crash or data integrity issues during the boot phase.
7.4 (High)
Affected products
Fixed
3 products
| Product | Identifier | Version | Remediation |
|---|---|---|---|
| Unresolved product id: BaseOS-9.3.0.Z.MAIN:shim-0:15.8-4.el9_3.src | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-9.3.0.Z.MAIN:shim-aa64-0:15.8-4.el9_3.aarch64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-9.3.0.Z.MAIN:shim-x64-0:15.8-4.el9_3.x86_64 | — |
Vendor Fix
fix
Workaround
|
Threats
Impact
Moderate
An out-of-bounds read flaw was found in Shim due to the lack of proper boundary verification during the load of a PE binary. This flaw allows an attacker to load a crafted PE binary, triggering the issue and crashing Shim, resulting in a denial of service.
6.2 (Medium)
Affected products
Fixed
3 products
| Product | Identifier | Version | Remediation |
|---|---|---|---|
| Unresolved product id: BaseOS-9.3.0.Z.MAIN:shim-0:15.8-4.el9_3.src | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-9.3.0.Z.MAIN:shim-aa64-0:15.8-4.el9_3.aarch64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-9.3.0.Z.MAIN:shim-x64-0:15.8-4.el9_3.x86_64 | — |
Vendor Fix
fix
Workaround
|
Threats
Impact
Moderate
An out-of-bounds read flaw was found in Shim when it tried to validate the SBAT information. This issue may expose sensitive data during the system's boot phase.
5.5 (Medium)
Affected products
Fixed
3 products
| Product | Identifier | Version | Remediation |
|---|---|---|---|
| Unresolved product id: BaseOS-9.3.0.Z.MAIN:shim-0:15.8-4.el9_3.src | — |
Vendor Fix
fix
|
|
| Unresolved product id: BaseOS-9.3.0.Z.MAIN:shim-aa64-0:15.8-4.el9_3.aarch64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: BaseOS-9.3.0.Z.MAIN:shim-x64-0:15.8-4.el9_3.x86_64 | — |
Vendor Fix
fix
|
Threats
Impact
Moderate
A flaw was found in the MZ binary format in Shim. An out-of-bounds read may occur, leading to a crash or possible exposure of sensitive data during the system's boot phase.
5.1 (Medium)
Affected products
Fixed
3 products
| Product | Identifier | Version | Remediation |
|---|---|---|---|
| Unresolved product id: BaseOS-9.3.0.Z.MAIN:shim-0:15.8-4.el9_3.src | — |
Vendor Fix
fix
|
|
| Unresolved product id: BaseOS-9.3.0.Z.MAIN:shim-aa64-0:15.8-4.el9_3.aarch64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: BaseOS-9.3.0.Z.MAIN:shim-x64-0:15.8-4.el9_3.x86_64 | — |
Vendor Fix
fix
|
Threats
Impact
Moderate
References
33 references
Acknowledgments
Microsoft Security Response Center
Bill Demirkapi
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"text": "The shim package contains a first-stage UEFI boot loader that handles chaining\nto a trusted full boot loader under secure boot environments.\n\nSecurity Fix(es):\n\n* shim: RCE in http boot support may lead to Secure Boot bypass (CVE-2023-40547)\n\n* shim: Interger overflow leads to heap buffer overflow in verify_sbat_section\non 32-bits systems (CVE-2023-40548)\n\n* shim: Out-of-bounds read printing error messages (CVE-2023-40546)\n\n* shim: Out-of-bounds read in verify_buffer_authenticode() malformed PE file\n(CVE-2023-40549)\n\n* shim: Out-of-bound read in verify_buffer_sbat() (CVE-2023-40550)\n\n* shim: out of bounds read when parsing MZ binaries (CVE-2023-40551)\n\nFor more details about the security issue(s), including the impact, a CVSS\nscore, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.",
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},
{
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"text": "This flaw is only exploitable when the machine is booting UEFI through the network. During startup, before loading a local boot image, Shim checks whether the system is configured to support network booting. If the check succeeds, Shim attempts to load the bootable image from the boot\u0027s previously configured server using the HTTP protocol, which exposes the system to the vulnerability described by this CVE.",
"title": "Statement"
},
{
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{
"category": "external",
"summary": "https://www.cve.org/CVERecord?id=CVE-2023-40549",
"url": "https://www.cve.org/CVERecord?id=CVE-2023-40549"
},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2023-40549",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2023-40549"
}
],
"release_date": "2024-01-23T00:00:00+00:00",
"remediations": [
{
"category": "vendor_fix",
"date": "2024-04-18T17:42:35+00:00",
"details": "For details on how to apply this update, refer to:\n\nhttps://access.redhat.com/articles/11258",
"product_ids": [
"BaseOS-9.3.0.Z.MAIN:shim-0:15.8-4.el9_3.src",
"BaseOS-9.3.0.Z.MAIN:shim-aa64-0:15.8-4.el9_3.aarch64",
"BaseOS-9.3.0.Z.MAIN:shim-x64-0:15.8-4.el9_3.x86_64"
],
"restart_required": {
"category": "none"
},
"url": "https://access.redhat.com/errata/RHSA-2024:1903"
},
{
"category": "workaround",
"details": "There\u0027s no available mitigation for this issue.",
"product_ids": [
"BaseOS-9.3.0.Z.MAIN:shim-0:15.8-4.el9_3.src",
"BaseOS-9.3.0.Z.MAIN:shim-aa64-0:15.8-4.el9_3.aarch64",
"BaseOS-9.3.0.Z.MAIN:shim-x64-0:15.8-4.el9_3.x86_64"
]
}
],
"scores": [
{
"cvss_v3": {
"attackComplexity": "LOW",
"attackVector": "LOCAL",
"availabilityImpact": "HIGH",
"baseScore": 6.2,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"version": "3.1"
},
"products": [
"BaseOS-9.3.0.Z.MAIN:shim-0:15.8-4.el9_3.src",
"BaseOS-9.3.0.Z.MAIN:shim-aa64-0:15.8-4.el9_3.aarch64",
"BaseOS-9.3.0.Z.MAIN:shim-x64-0:15.8-4.el9_3.x86_64"
]
}
],
"threats": [
{
"category": "impact",
"details": "Moderate"
}
],
"title": "shim: Out-of-bounds read in verify_buffer_authenticode() malformed PE file"
},
{
"cve": "CVE-2023-40550",
"cwe": {
"id": "CWE-125",
"name": "Out-of-bounds Read"
},
"discovery_date": "2024-01-23T00:00:00+00:00",
"ids": [
{
"system_name": "Red Hat Bugzilla ID",
"text": "2259915"
}
],
"notes": [
{
"category": "description",
"text": "An out-of-bounds read flaw was found in Shim when it tried to validate the SBAT information. This issue may expose sensitive data during the system\u0027s boot phase.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "shim: Out-of-bound read in verify_buffer_sbat()",
"title": "Vulnerability summary"
},
{
"category": "general",
"text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
"title": "CVSS score applicability"
}
],
"product_status": {
"fixed": [
"BaseOS-9.3.0.Z.MAIN:shim-0:15.8-4.el9_3.src",
"BaseOS-9.3.0.Z.MAIN:shim-aa64-0:15.8-4.el9_3.aarch64",
"BaseOS-9.3.0.Z.MAIN:shim-x64-0:15.8-4.el9_3.x86_64"
]
},
"references": [
{
"category": "self",
"summary": "Canonical URL",
"url": "https://access.redhat.com/security/cve/CVE-2023-40550"
},
{
"category": "external",
"summary": "RHBZ#2259915",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2259915"
},
{
"category": "external",
"summary": "https://www.cve.org/CVERecord?id=CVE-2023-40550",
"url": "https://www.cve.org/CVERecord?id=CVE-2023-40550"
},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2023-40550",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2023-40550"
}
],
"release_date": "2024-01-23T00:00:00+00:00",
"remediations": [
{
"category": "vendor_fix",
"date": "2024-04-18T17:42:35+00:00",
"details": "For details on how to apply this update, refer to:\n\nhttps://access.redhat.com/articles/11258",
"product_ids": [
"BaseOS-9.3.0.Z.MAIN:shim-0:15.8-4.el9_3.src",
"BaseOS-9.3.0.Z.MAIN:shim-aa64-0:15.8-4.el9_3.aarch64",
"BaseOS-9.3.0.Z.MAIN:shim-x64-0:15.8-4.el9_3.x86_64"
],
"restart_required": {
"category": "none"
},
"url": "https://access.redhat.com/errata/RHSA-2024:1903"
}
],
"scores": [
{
"cvss_v3": {
"attackComplexity": "LOW",
"attackVector": "LOCAL",
"availabilityImpact": "NONE",
"baseScore": 5.5,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "HIGH",
"integrityImpact": "NONE",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N",
"version": "3.1"
},
"products": [
"BaseOS-9.3.0.Z.MAIN:shim-0:15.8-4.el9_3.src",
"BaseOS-9.3.0.Z.MAIN:shim-aa64-0:15.8-4.el9_3.aarch64",
"BaseOS-9.3.0.Z.MAIN:shim-x64-0:15.8-4.el9_3.x86_64"
]
}
],
"threats": [
{
"category": "impact",
"details": "Moderate"
}
],
"title": "shim: Out-of-bound read in verify_buffer_sbat()"
},
{
"cve": "CVE-2023-40551",
"cwe": {
"id": "CWE-125",
"name": "Out-of-bounds Read"
},
"discovery_date": "2023-07-26T00:00:00+00:00",
"ids": [
{
"system_name": "Red Hat Bugzilla ID",
"text": "2259918"
}
],
"notes": [
{
"category": "description",
"text": "A flaw was found in the MZ binary format in Shim. An out-of-bounds read may occur, leading to a crash or possible exposure of sensitive data during the system\u0027s boot phase.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "shim: out of bounds read when parsing MZ binaries",
"title": "Vulnerability summary"
},
{
"category": "general",
"text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
"title": "CVSS score applicability"
}
],
"product_status": {
"fixed": [
"BaseOS-9.3.0.Z.MAIN:shim-0:15.8-4.el9_3.src",
"BaseOS-9.3.0.Z.MAIN:shim-aa64-0:15.8-4.el9_3.aarch64",
"BaseOS-9.3.0.Z.MAIN:shim-x64-0:15.8-4.el9_3.x86_64"
]
},
"references": [
{
"category": "self",
"summary": "Canonical URL",
"url": "https://access.redhat.com/security/cve/CVE-2023-40551"
},
{
"category": "external",
"summary": "RHBZ#2259918",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2259918"
},
{
"category": "external",
"summary": "https://www.cve.org/CVERecord?id=CVE-2023-40551",
"url": "https://www.cve.org/CVERecord?id=CVE-2023-40551"
},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2023-40551",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2023-40551"
}
],
"release_date": "2024-01-23T00:00:00+00:00",
"remediations": [
{
"category": "vendor_fix",
"date": "2024-04-18T17:42:35+00:00",
"details": "For details on how to apply this update, refer to:\n\nhttps://access.redhat.com/articles/11258",
"product_ids": [
"BaseOS-9.3.0.Z.MAIN:shim-0:15.8-4.el9_3.src",
"BaseOS-9.3.0.Z.MAIN:shim-aa64-0:15.8-4.el9_3.aarch64",
"BaseOS-9.3.0.Z.MAIN:shim-x64-0:15.8-4.el9_3.x86_64"
],
"restart_required": {
"category": "none"
},
"url": "https://access.redhat.com/errata/RHSA-2024:1903"
}
],
"scores": [
{
"cvss_v3": {
"attackComplexity": "LOW",
"attackVector": "LOCAL",
"availabilityImpact": "HIGH",
"baseScore": 5.1,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "LOW",
"integrityImpact": "NONE",
"privilegesRequired": "HIGH",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:L/I:N/A:H",
"version": "3.1"
},
"products": [
"BaseOS-9.3.0.Z.MAIN:shim-0:15.8-4.el9_3.src",
"BaseOS-9.3.0.Z.MAIN:shim-aa64-0:15.8-4.el9_3.aarch64",
"BaseOS-9.3.0.Z.MAIN:shim-x64-0:15.8-4.el9_3.x86_64"
]
}
],
"threats": [
{
"category": "impact",
"details": "Moderate"
}
],
"title": "shim: out of bounds read when parsing MZ binaries"
}
]
}
RHSA-2024:1959
Vulnerability from csaf_redhat - Published: 2024-04-23 01:00 - Updated: 2026-03-18 02:35Summary
Red Hat Security Advisory: shim security update
Severity
Important
Notes
Topic: An update for shim is now available for Red Hat Enterprise Linux 7.
Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.
Details: The shim package contains a first-stage UEFI boot loader that handles chaining
to a trusted full boot loader under secure boot environments.
Security Fix(es):
* shim: RCE in http boot support may lead to Secure Boot bypass (CVE-2023-40547)
* shim: Interger overflow leads to heap buffer overflow in verify_sbat_section on 32-bits systems (CVE-2023-40548)
* shim: Out-of-bounds read printing error messages (CVE-2023-40546)
* shim: Out-of-bounds read in verify_buffer_authenticode() malformed PE file (CVE-2023-40549)
* shim: Out-of-bound read in verify_buffer_sbat() (CVE-2023-40550)
* shim: out of bounds read when parsing MZ binaries (CVE-2023-40551)
For more details about the security issue(s), including the impact, a CVSS
score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.
IMPORTANT: The new shim revokes ALL VERSIONS of GRUB2 before grub2-2.02-0.87.el7_9.14. Therefore GRUB2 MUST be updated to the latest
version: grub2-2.02-0.87.el7_9.14 BEFORE or SIMULTANEOUSLY with this shim in order for Secure Boot to continue to work. Failure to update GRUB2 will result in an UNBOOTABLE system.
Terms of Use: This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Red Hat Inc. and provide a link to the original.
A flaw was found in Shim when an error happened while creating a new ESL variable. If Shim fails to create the new variable, it tries to print an error message to the user; however, the number of parameters used by the logging function doesn't match the format string used by it, leading to a crash under certain circumstances.
6.2 (Medium)
Affected products
Fixed
24 products
| Product | Identifier | Version | Remediation |
|---|---|---|---|
| Unresolved product id: 7Client-7.9.Z:mokutil-0:15.8-1.el7.x86_64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: 7Client-7.9.Z:mokutil-debuginfo-0:15.8-1.el7.x86_64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: 7Client-7.9.Z:shim-0:15.8-3.el7.src | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: 7Client-7.9.Z:shim-ia32-0:15.8-1.el7.x86_64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: 7Client-7.9.Z:shim-signed-0:15.8-1.el7.src | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: 7Client-7.9.Z:shim-unsigned-ia32-0:15.8-3.el7.x86_64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: 7Client-7.9.Z:shim-unsigned-x64-0:15.8-3.el7.x86_64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: 7Client-7.9.Z:shim-x64-0:15.8-1.el7.x86_64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: 7Server-7.9.Z:mokutil-0:15.8-1.el7.x86_64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: 7Server-7.9.Z:mokutil-debuginfo-0:15.8-1.el7.x86_64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: 7Server-7.9.Z:shim-0:15.8-3.el7.src | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: 7Server-7.9.Z:shim-ia32-0:15.8-1.el7.x86_64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: 7Server-7.9.Z:shim-signed-0:15.8-1.el7.src | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: 7Server-7.9.Z:shim-unsigned-ia32-0:15.8-3.el7.x86_64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: 7Server-7.9.Z:shim-unsigned-x64-0:15.8-3.el7.x86_64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: 7Server-7.9.Z:shim-x64-0:15.8-1.el7.x86_64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: 7Workstation-7.9.Z:mokutil-0:15.8-1.el7.x86_64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: 7Workstation-7.9.Z:mokutil-debuginfo-0:15.8-1.el7.x86_64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: 7Workstation-7.9.Z:shim-0:15.8-3.el7.src | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: 7Workstation-7.9.Z:shim-ia32-0:15.8-1.el7.x86_64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: 7Workstation-7.9.Z:shim-signed-0:15.8-1.el7.src | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: 7Workstation-7.9.Z:shim-unsigned-ia32-0:15.8-3.el7.x86_64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: 7Workstation-7.9.Z:shim-unsigned-x64-0:15.8-3.el7.x86_64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: 7Workstation-7.9.Z:shim-x64-0:15.8-1.el7.x86_64 | — |
Vendor Fix
fix
Workaround
|
Threats
Impact
Moderate
A remote code execution vulnerability was found in Shim. The Shim boot support trusts attacker-controlled values when parsing an HTTP response. This flaw allows an attacker to craft a specific malicious HTTP request, leading to a completely controlled out-of-bounds write primitive and complete system compromise. This flaw is only exploitable during the early boot phase, an attacker needs to perform a Man-in-the-Middle or compromise the boot server to be able to exploit this vulnerability successfully.
8.3 (High)
Affected products
Fixed
24 products
| Product | Identifier | Version | Remediation |
|---|---|---|---|
| Unresolved product id: 7Client-7.9.Z:mokutil-0:15.8-1.el7.x86_64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: 7Client-7.9.Z:mokutil-debuginfo-0:15.8-1.el7.x86_64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: 7Client-7.9.Z:shim-0:15.8-3.el7.src | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: 7Client-7.9.Z:shim-ia32-0:15.8-1.el7.x86_64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: 7Client-7.9.Z:shim-signed-0:15.8-1.el7.src | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: 7Client-7.9.Z:shim-unsigned-ia32-0:15.8-3.el7.x86_64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: 7Client-7.9.Z:shim-unsigned-x64-0:15.8-3.el7.x86_64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: 7Client-7.9.Z:shim-x64-0:15.8-1.el7.x86_64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: 7Server-7.9.Z:mokutil-0:15.8-1.el7.x86_64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: 7Server-7.9.Z:mokutil-debuginfo-0:15.8-1.el7.x86_64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: 7Server-7.9.Z:shim-0:15.8-3.el7.src | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: 7Server-7.9.Z:shim-ia32-0:15.8-1.el7.x86_64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: 7Server-7.9.Z:shim-signed-0:15.8-1.el7.src | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: 7Server-7.9.Z:shim-unsigned-ia32-0:15.8-3.el7.x86_64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: 7Server-7.9.Z:shim-unsigned-x64-0:15.8-3.el7.x86_64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: 7Server-7.9.Z:shim-x64-0:15.8-1.el7.x86_64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: 7Workstation-7.9.Z:mokutil-0:15.8-1.el7.x86_64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: 7Workstation-7.9.Z:mokutil-debuginfo-0:15.8-1.el7.x86_64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: 7Workstation-7.9.Z:shim-0:15.8-3.el7.src | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: 7Workstation-7.9.Z:shim-ia32-0:15.8-1.el7.x86_64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: 7Workstation-7.9.Z:shim-signed-0:15.8-1.el7.src | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: 7Workstation-7.9.Z:shim-unsigned-ia32-0:15.8-3.el7.x86_64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: 7Workstation-7.9.Z:shim-unsigned-x64-0:15.8-3.el7.x86_64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: 7Workstation-7.9.Z:shim-x64-0:15.8-1.el7.x86_64 | — |
Vendor Fix
fix
Workaround
|
Threats
Impact
Important
A buffer overflow was found in Shim in the 32-bit system. The overflow happens due to an addition operation involving a user-controlled value parsed from the PE binary being used by Shim. This value is further used for memory allocation operations, leading to a heap-based buffer overflow. This flaw causes memory corruption and can lead to a crash or data integrity issues during the boot phase.
7.4 (High)
Affected products
Fixed
24 products
| Product | Identifier | Version | Remediation |
|---|---|---|---|
| Unresolved product id: 7Client-7.9.Z:mokutil-0:15.8-1.el7.x86_64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: 7Client-7.9.Z:mokutil-debuginfo-0:15.8-1.el7.x86_64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: 7Client-7.9.Z:shim-0:15.8-3.el7.src | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: 7Client-7.9.Z:shim-ia32-0:15.8-1.el7.x86_64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: 7Client-7.9.Z:shim-signed-0:15.8-1.el7.src | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: 7Client-7.9.Z:shim-unsigned-ia32-0:15.8-3.el7.x86_64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: 7Client-7.9.Z:shim-unsigned-x64-0:15.8-3.el7.x86_64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: 7Client-7.9.Z:shim-x64-0:15.8-1.el7.x86_64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: 7Server-7.9.Z:mokutil-0:15.8-1.el7.x86_64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: 7Server-7.9.Z:mokutil-debuginfo-0:15.8-1.el7.x86_64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: 7Server-7.9.Z:shim-0:15.8-3.el7.src | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: 7Server-7.9.Z:shim-ia32-0:15.8-1.el7.x86_64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: 7Server-7.9.Z:shim-signed-0:15.8-1.el7.src | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: 7Server-7.9.Z:shim-unsigned-ia32-0:15.8-3.el7.x86_64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: 7Server-7.9.Z:shim-unsigned-x64-0:15.8-3.el7.x86_64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: 7Server-7.9.Z:shim-x64-0:15.8-1.el7.x86_64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: 7Workstation-7.9.Z:mokutil-0:15.8-1.el7.x86_64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: 7Workstation-7.9.Z:mokutil-debuginfo-0:15.8-1.el7.x86_64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: 7Workstation-7.9.Z:shim-0:15.8-3.el7.src | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: 7Workstation-7.9.Z:shim-ia32-0:15.8-1.el7.x86_64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: 7Workstation-7.9.Z:shim-signed-0:15.8-1.el7.src | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: 7Workstation-7.9.Z:shim-unsigned-ia32-0:15.8-3.el7.x86_64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: 7Workstation-7.9.Z:shim-unsigned-x64-0:15.8-3.el7.x86_64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: 7Workstation-7.9.Z:shim-x64-0:15.8-1.el7.x86_64 | — |
Vendor Fix
fix
Workaround
|
Threats
Impact
Moderate
An out-of-bounds read flaw was found in Shim due to the lack of proper boundary verification during the load of a PE binary. This flaw allows an attacker to load a crafted PE binary, triggering the issue and crashing Shim, resulting in a denial of service.
6.2 (Medium)
Affected products
Fixed
24 products
| Product | Identifier | Version | Remediation |
|---|---|---|---|
| Unresolved product id: 7Client-7.9.Z:mokutil-0:15.8-1.el7.x86_64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: 7Client-7.9.Z:mokutil-debuginfo-0:15.8-1.el7.x86_64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: 7Client-7.9.Z:shim-0:15.8-3.el7.src | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: 7Client-7.9.Z:shim-ia32-0:15.8-1.el7.x86_64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: 7Client-7.9.Z:shim-signed-0:15.8-1.el7.src | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: 7Client-7.9.Z:shim-unsigned-ia32-0:15.8-3.el7.x86_64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: 7Client-7.9.Z:shim-unsigned-x64-0:15.8-3.el7.x86_64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: 7Client-7.9.Z:shim-x64-0:15.8-1.el7.x86_64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: 7Server-7.9.Z:mokutil-0:15.8-1.el7.x86_64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: 7Server-7.9.Z:mokutil-debuginfo-0:15.8-1.el7.x86_64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: 7Server-7.9.Z:shim-0:15.8-3.el7.src | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: 7Server-7.9.Z:shim-ia32-0:15.8-1.el7.x86_64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: 7Server-7.9.Z:shim-signed-0:15.8-1.el7.src | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: 7Server-7.9.Z:shim-unsigned-ia32-0:15.8-3.el7.x86_64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: 7Server-7.9.Z:shim-unsigned-x64-0:15.8-3.el7.x86_64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: 7Server-7.9.Z:shim-x64-0:15.8-1.el7.x86_64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: 7Workstation-7.9.Z:mokutil-0:15.8-1.el7.x86_64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: 7Workstation-7.9.Z:mokutil-debuginfo-0:15.8-1.el7.x86_64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: 7Workstation-7.9.Z:shim-0:15.8-3.el7.src | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: 7Workstation-7.9.Z:shim-ia32-0:15.8-1.el7.x86_64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: 7Workstation-7.9.Z:shim-signed-0:15.8-1.el7.src | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: 7Workstation-7.9.Z:shim-unsigned-ia32-0:15.8-3.el7.x86_64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: 7Workstation-7.9.Z:shim-unsigned-x64-0:15.8-3.el7.x86_64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: 7Workstation-7.9.Z:shim-x64-0:15.8-1.el7.x86_64 | — |
Vendor Fix
fix
Workaround
|
Threats
Impact
Moderate
An out-of-bounds read flaw was found in Shim when it tried to validate the SBAT information. This issue may expose sensitive data during the system's boot phase.
5.5 (Medium)
Affected products
Fixed
24 products
| Product | Identifier | Version | Remediation |
|---|---|---|---|
| Unresolved product id: 7Client-7.9.Z:mokutil-0:15.8-1.el7.x86_64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Client-7.9.Z:mokutil-debuginfo-0:15.8-1.el7.x86_64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Client-7.9.Z:shim-0:15.8-3.el7.src | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Client-7.9.Z:shim-ia32-0:15.8-1.el7.x86_64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Client-7.9.Z:shim-signed-0:15.8-1.el7.src | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Client-7.9.Z:shim-unsigned-ia32-0:15.8-3.el7.x86_64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Client-7.9.Z:shim-unsigned-x64-0:15.8-3.el7.x86_64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Client-7.9.Z:shim-x64-0:15.8-1.el7.x86_64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-7.9.Z:mokutil-0:15.8-1.el7.x86_64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-7.9.Z:mokutil-debuginfo-0:15.8-1.el7.x86_64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-7.9.Z:shim-0:15.8-3.el7.src | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-7.9.Z:shim-ia32-0:15.8-1.el7.x86_64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-7.9.Z:shim-signed-0:15.8-1.el7.src | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-7.9.Z:shim-unsigned-ia32-0:15.8-3.el7.x86_64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-7.9.Z:shim-unsigned-x64-0:15.8-3.el7.x86_64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-7.9.Z:shim-x64-0:15.8-1.el7.x86_64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Workstation-7.9.Z:mokutil-0:15.8-1.el7.x86_64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Workstation-7.9.Z:mokutil-debuginfo-0:15.8-1.el7.x86_64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Workstation-7.9.Z:shim-0:15.8-3.el7.src | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Workstation-7.9.Z:shim-ia32-0:15.8-1.el7.x86_64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Workstation-7.9.Z:shim-signed-0:15.8-1.el7.src | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Workstation-7.9.Z:shim-unsigned-ia32-0:15.8-3.el7.x86_64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Workstation-7.9.Z:shim-unsigned-x64-0:15.8-3.el7.x86_64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Workstation-7.9.Z:shim-x64-0:15.8-1.el7.x86_64 | — |
Vendor Fix
fix
|
Threats
Impact
Moderate
A flaw was found in the MZ binary format in Shim. An out-of-bounds read may occur, leading to a crash or possible exposure of sensitive data during the system's boot phase.
5.1 (Medium)
Affected products
Fixed
24 products
| Product | Identifier | Version | Remediation |
|---|---|---|---|
| Unresolved product id: 7Client-7.9.Z:mokutil-0:15.8-1.el7.x86_64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Client-7.9.Z:mokutil-debuginfo-0:15.8-1.el7.x86_64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Client-7.9.Z:shim-0:15.8-3.el7.src | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Client-7.9.Z:shim-ia32-0:15.8-1.el7.x86_64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Client-7.9.Z:shim-signed-0:15.8-1.el7.src | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Client-7.9.Z:shim-unsigned-ia32-0:15.8-3.el7.x86_64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Client-7.9.Z:shim-unsigned-x64-0:15.8-3.el7.x86_64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Client-7.9.Z:shim-x64-0:15.8-1.el7.x86_64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-7.9.Z:mokutil-0:15.8-1.el7.x86_64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-7.9.Z:mokutil-debuginfo-0:15.8-1.el7.x86_64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-7.9.Z:shim-0:15.8-3.el7.src | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-7.9.Z:shim-ia32-0:15.8-1.el7.x86_64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-7.9.Z:shim-signed-0:15.8-1.el7.src | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-7.9.Z:shim-unsigned-ia32-0:15.8-3.el7.x86_64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-7.9.Z:shim-unsigned-x64-0:15.8-3.el7.x86_64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-7.9.Z:shim-x64-0:15.8-1.el7.x86_64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Workstation-7.9.Z:mokutil-0:15.8-1.el7.x86_64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Workstation-7.9.Z:mokutil-debuginfo-0:15.8-1.el7.x86_64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Workstation-7.9.Z:shim-0:15.8-3.el7.src | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Workstation-7.9.Z:shim-ia32-0:15.8-1.el7.x86_64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Workstation-7.9.Z:shim-signed-0:15.8-1.el7.src | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Workstation-7.9.Z:shim-unsigned-ia32-0:15.8-3.el7.x86_64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Workstation-7.9.Z:shim-unsigned-x64-0:15.8-3.el7.x86_64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Workstation-7.9.Z:shim-x64-0:15.8-1.el7.x86_64 | — |
Vendor Fix
fix
|
Threats
Impact
Moderate
References
36 references
Acknowledgments
Microsoft Security Response Center
Bill Demirkapi
{
"document": {
"aggregate_severity": {
"namespace": "https://access.redhat.com/security/updates/classification/",
"text": "Important"
},
"category": "csaf_security_advisory",
"csaf_version": "2.0",
"distribution": {
"text": "Copyright \u00a9 Red Hat, Inc. All rights reserved.",
"tlp": {
"label": "WHITE",
"url": "https://www.first.org/tlp/"
}
},
"lang": "en",
"notes": [
{
"category": "summary",
"text": "An update for shim is now available for Red Hat Enterprise Linux 7.\n\nRed Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.",
"title": "Topic"
},
{
"category": "general",
"text": "The shim package contains a first-stage UEFI boot loader that handles chaining\nto a trusted full boot loader under secure boot environments.\n\nSecurity Fix(es):\n\n* shim: RCE in http boot support may lead to Secure Boot bypass (CVE-2023-40547)\n\n* shim: Interger overflow leads to heap buffer overflow in verify_sbat_section on 32-bits systems (CVE-2023-40548)\n\n* shim: Out-of-bounds read printing error messages (CVE-2023-40546)\n\n* shim: Out-of-bounds read in verify_buffer_authenticode() malformed PE file (CVE-2023-40549)\n\n* shim: Out-of-bound read in verify_buffer_sbat() (CVE-2023-40550)\n\n* shim: out of bounds read when parsing MZ binaries (CVE-2023-40551)\n\nFor more details about the security issue(s), including the impact, a CVSS\nscore, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.\n\nIMPORTANT: The new shim revokes ALL VERSIONS of GRUB2 before grub2-2.02-0.87.el7_9.14. Therefore GRUB2 MUST be updated to the latest\nversion: grub2-2.02-0.87.el7_9.14 BEFORE or SIMULTANEOUSLY with this shim in order for Secure Boot to continue to work. Failure to update GRUB2 will result in an UNBOOTABLE system.",
"title": "Details"
},
{
"category": "legal_disclaimer",
"text": "This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Red Hat Inc. and provide a link to the original.",
"title": "Terms of Use"
}
],
"publisher": {
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},
"references": [
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{
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"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2234589"
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{
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"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2259915"
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{
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"summary": "2259918",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2259918"
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{
"category": "external",
"summary": "RHEL-2155",
"url": "https://issues.redhat.com/browse/RHEL-2155"
},
{
"category": "external",
"summary": "RHEL-4382",
"url": "https://issues.redhat.com/browse/RHEL-4382"
},
{
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"summary": "RHEL-4390",
"url": "https://issues.redhat.com/browse/RHEL-4390"
},
{
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"summary": "Canonical URL",
"url": "https://security.access.redhat.com/data/csaf/v2/advisories/2024/rhsa-2024_1959.json"
}
],
"title": "Red Hat Security Advisory: shim security update",
"tracking": {
"current_release_date": "2026-03-18T02:35:47+00:00",
"generator": {
"date": "2026-03-18T02:35:47+00:00",
"engine": {
"name": "Red Hat SDEngine",
"version": "4.7.3"
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},
"id": "RHSA-2024:1959",
"initial_release_date": "2024-04-23T01:00:12+00:00",
"revision_history": [
{
"date": "2024-04-23T01:00:12+00:00",
"number": "1",
"summary": "Initial version"
},
{
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"number": "2",
"summary": "Last updated version"
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{
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"product_tree": {
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{
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},
{
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"product": {
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"product_identification_helper": {
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"category": "product_family",
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},
{
"branches": [
{
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"name": "shim-0:15.8-3.el7.src",
"product": {
"name": "shim-0:15.8-3.el7.src",
"product_id": "shim-0:15.8-3.el7.src",
"product_identification_helper": {
"purl": "pkg:rpm/redhat/shim@15.8-3.el7?arch=src"
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}
},
{
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"product": {
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"product_identification_helper": {
"purl": "pkg:rpm/redhat/shim-signed@15.8-1.el7?arch=src"
}
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],
"category": "architecture",
"name": "src"
},
{
"branches": [
{
"category": "product_version",
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"product": {
"name": "shim-unsigned-ia32-0:15.8-3.el7.x86_64",
"product_id": "shim-unsigned-ia32-0:15.8-3.el7.x86_64",
"product_identification_helper": {
"purl": "pkg:rpm/redhat/shim-unsigned-ia32@15.8-3.el7?arch=x86_64"
}
}
},
{
"category": "product_version",
"name": "shim-unsigned-x64-0:15.8-3.el7.x86_64",
"product": {
"name": "shim-unsigned-x64-0:15.8-3.el7.x86_64",
"product_id": "shim-unsigned-x64-0:15.8-3.el7.x86_64",
"product_identification_helper": {
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},
{
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"product": {
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"product_id": "mokutil-0:15.8-1.el7.x86_64",
"product_identification_helper": {
"purl": "pkg:rpm/redhat/mokutil@15.8-1.el7?arch=x86_64"
}
}
},
{
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RHSA-2024:2086
Vulnerability from csaf_redhat - Published: 2024-04-29 12:31 - Updated: 2026-03-18 02:37Summary
Red Hat Security Advisory: shim security update
Severity
Important
Notes
Topic: An update for shim is now available for Red Hat Enterprise Linux 8.6 Extended
Update Support.
Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.
Details: The shim package contains a first-stage UEFI boot loader that handles chaining
to a trusted full boot loader under secure boot environments.
Security Fix(es):
* shim: RCE in http boot support may lead to Secure Boot bypass (CVE-2023-40547)
* shim: Interger overflow leads to heap buffer overflow in verify_sbat_section
on 32-bits systems (CVE-2023-40548)
* shim: Out-of-bounds read printing error messages (CVE-2023-40546)
* shim: Out-of-bounds read in verify_buffer_authenticode() malformed PE file
(CVE-2023-40549)
* shim: Out-of-bound read in verify_buffer_sbat() (CVE-2023-40550)
* shim: out of bounds read when parsing MZ binaries (CVE-2023-40551)
For more details about the security issue(s), including the impact, a CVSS
score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.
Terms of Use: This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Red Hat Inc. and provide a link to the original.
A flaw was found in Shim when an error happened while creating a new ESL variable. If Shim fails to create the new variable, it tries to print an error message to the user; however, the number of parameters used by the logging function doesn't match the format string used by it, leading to a crash under certain circumstances.
6.2 (Medium)
Affected products
Fixed
4 products
| Product | Identifier | Version | Remediation |
|---|---|---|---|
| Unresolved product id: BaseOS-8.6.0.Z.EUS:shim-0:15.8-2.el8_6.src | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-8.6.0.Z.EUS:shim-aa64-0:15.8-2.el8_6.aarch64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-8.6.0.Z.EUS:shim-ia32-0:15.8-2.el8_6.x86_64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-8.6.0.Z.EUS:shim-x64-0:15.8-2.el8_6.x86_64 | — |
Vendor Fix
fix
Workaround
|
Threats
Impact
Moderate
A remote code execution vulnerability was found in Shim. The Shim boot support trusts attacker-controlled values when parsing an HTTP response. This flaw allows an attacker to craft a specific malicious HTTP request, leading to a completely controlled out-of-bounds write primitive and complete system compromise. This flaw is only exploitable during the early boot phase, an attacker needs to perform a Man-in-the-Middle or compromise the boot server to be able to exploit this vulnerability successfully.
8.3 (High)
Affected products
Fixed
4 products
| Product | Identifier | Version | Remediation |
|---|---|---|---|
| Unresolved product id: BaseOS-8.6.0.Z.EUS:shim-0:15.8-2.el8_6.src | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-8.6.0.Z.EUS:shim-aa64-0:15.8-2.el8_6.aarch64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-8.6.0.Z.EUS:shim-ia32-0:15.8-2.el8_6.x86_64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-8.6.0.Z.EUS:shim-x64-0:15.8-2.el8_6.x86_64 | — |
Vendor Fix
fix
Workaround
|
Threats
Impact
Important
A buffer overflow was found in Shim in the 32-bit system. The overflow happens due to an addition operation involving a user-controlled value parsed from the PE binary being used by Shim. This value is further used for memory allocation operations, leading to a heap-based buffer overflow. This flaw causes memory corruption and can lead to a crash or data integrity issues during the boot phase.
7.4 (High)
Affected products
Fixed
4 products
| Product | Identifier | Version | Remediation |
|---|---|---|---|
| Unresolved product id: BaseOS-8.6.0.Z.EUS:shim-0:15.8-2.el8_6.src | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-8.6.0.Z.EUS:shim-aa64-0:15.8-2.el8_6.aarch64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-8.6.0.Z.EUS:shim-ia32-0:15.8-2.el8_6.x86_64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-8.6.0.Z.EUS:shim-x64-0:15.8-2.el8_6.x86_64 | — |
Vendor Fix
fix
Workaround
|
Threats
Impact
Moderate
An out-of-bounds read flaw was found in Shim due to the lack of proper boundary verification during the load of a PE binary. This flaw allows an attacker to load a crafted PE binary, triggering the issue and crashing Shim, resulting in a denial of service.
6.2 (Medium)
Affected products
Fixed
4 products
| Product | Identifier | Version | Remediation |
|---|---|---|---|
| Unresolved product id: BaseOS-8.6.0.Z.EUS:shim-0:15.8-2.el8_6.src | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-8.6.0.Z.EUS:shim-aa64-0:15.8-2.el8_6.aarch64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-8.6.0.Z.EUS:shim-ia32-0:15.8-2.el8_6.x86_64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: BaseOS-8.6.0.Z.EUS:shim-x64-0:15.8-2.el8_6.x86_64 | — |
Vendor Fix
fix
Workaround
|
Threats
Impact
Moderate
An out-of-bounds read flaw was found in Shim when it tried to validate the SBAT information. This issue may expose sensitive data during the system's boot phase.
5.5 (Medium)
Affected products
Fixed
4 products
| Product | Identifier | Version | Remediation |
|---|---|---|---|
| Unresolved product id: BaseOS-8.6.0.Z.EUS:shim-0:15.8-2.el8_6.src | — |
Vendor Fix
fix
|
|
| Unresolved product id: BaseOS-8.6.0.Z.EUS:shim-aa64-0:15.8-2.el8_6.aarch64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: BaseOS-8.6.0.Z.EUS:shim-ia32-0:15.8-2.el8_6.x86_64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: BaseOS-8.6.0.Z.EUS:shim-x64-0:15.8-2.el8_6.x86_64 | — |
Vendor Fix
fix
|
Threats
Impact
Moderate
A flaw was found in the MZ binary format in Shim. An out-of-bounds read may occur, leading to a crash or possible exposure of sensitive data during the system's boot phase.
5.1 (Medium)
Affected products
Fixed
4 products
| Product | Identifier | Version | Remediation |
|---|---|---|---|
| Unresolved product id: BaseOS-8.6.0.Z.EUS:shim-0:15.8-2.el8_6.src | — |
Vendor Fix
fix
|
|
| Unresolved product id: BaseOS-8.6.0.Z.EUS:shim-aa64-0:15.8-2.el8_6.aarch64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: BaseOS-8.6.0.Z.EUS:shim-ia32-0:15.8-2.el8_6.x86_64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: BaseOS-8.6.0.Z.EUS:shim-x64-0:15.8-2.el8_6.x86_64 | — |
Vendor Fix
fix
|
Threats
Impact
Moderate
References
33 references
Acknowledgments
Microsoft Security Response Center
Bill Demirkapi
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"text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
"title": "CVSS score applicability"
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{
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"text": "shim: Interger overflow leads to heap buffer overflow in verify_sbat_section on 32-bits systems",
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},
{
"category": "general",
"text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
"title": "CVSS score applicability"
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"title": "Vulnerability description"
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"BaseOS-8.6.0.Z.EUS:shim-ia32-0:15.8-2.el8_6.x86_64",
"BaseOS-8.6.0.Z.EUS:shim-x64-0:15.8-2.el8_6.x86_64"
]
},
"references": [
{
"category": "self",
"summary": "Canonical URL",
"url": "https://access.redhat.com/security/cve/CVE-2023-40549"
},
{
"category": "external",
"summary": "RHBZ#2241797",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2241797"
},
{
"category": "external",
"summary": "https://www.cve.org/CVERecord?id=CVE-2023-40549",
"url": "https://www.cve.org/CVERecord?id=CVE-2023-40549"
},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2023-40549",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2023-40549"
}
],
"release_date": "2024-01-23T00:00:00+00:00",
"remediations": [
{
"category": "vendor_fix",
"date": "2024-04-29T12:31:44+00:00",
"details": "For details on how to apply this update, refer to:\n\nhttps://access.redhat.com/articles/11258",
"product_ids": [
"BaseOS-8.6.0.Z.EUS:shim-0:15.8-2.el8_6.src",
"BaseOS-8.6.0.Z.EUS:shim-aa64-0:15.8-2.el8_6.aarch64",
"BaseOS-8.6.0.Z.EUS:shim-ia32-0:15.8-2.el8_6.x86_64",
"BaseOS-8.6.0.Z.EUS:shim-x64-0:15.8-2.el8_6.x86_64"
],
"restart_required": {
"category": "none"
},
"url": "https://access.redhat.com/errata/RHSA-2024:2086"
},
{
"category": "workaround",
"details": "There\u0027s no available mitigation for this issue.",
"product_ids": [
"BaseOS-8.6.0.Z.EUS:shim-0:15.8-2.el8_6.src",
"BaseOS-8.6.0.Z.EUS:shim-aa64-0:15.8-2.el8_6.aarch64",
"BaseOS-8.6.0.Z.EUS:shim-ia32-0:15.8-2.el8_6.x86_64",
"BaseOS-8.6.0.Z.EUS:shim-x64-0:15.8-2.el8_6.x86_64"
]
}
],
"scores": [
{
"cvss_v3": {
"attackComplexity": "LOW",
"attackVector": "LOCAL",
"availabilityImpact": "HIGH",
"baseScore": 6.2,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"version": "3.1"
},
"products": [
"BaseOS-8.6.0.Z.EUS:shim-0:15.8-2.el8_6.src",
"BaseOS-8.6.0.Z.EUS:shim-aa64-0:15.8-2.el8_6.aarch64",
"BaseOS-8.6.0.Z.EUS:shim-ia32-0:15.8-2.el8_6.x86_64",
"BaseOS-8.6.0.Z.EUS:shim-x64-0:15.8-2.el8_6.x86_64"
]
}
],
"threats": [
{
"category": "impact",
"details": "Moderate"
}
],
"title": "shim: Out-of-bounds read in verify_buffer_authenticode() malformed PE file"
},
{
"cve": "CVE-2023-40550",
"cwe": {
"id": "CWE-125",
"name": "Out-of-bounds Read"
},
"discovery_date": "2024-01-23T00:00:00+00:00",
"ids": [
{
"system_name": "Red Hat Bugzilla ID",
"text": "2259915"
}
],
"notes": [
{
"category": "description",
"text": "An out-of-bounds read flaw was found in Shim when it tried to validate the SBAT information. This issue may expose sensitive data during the system\u0027s boot phase.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "shim: Out-of-bound read in verify_buffer_sbat()",
"title": "Vulnerability summary"
},
{
"category": "general",
"text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
"title": "CVSS score applicability"
}
],
"product_status": {
"fixed": [
"BaseOS-8.6.0.Z.EUS:shim-0:15.8-2.el8_6.src",
"BaseOS-8.6.0.Z.EUS:shim-aa64-0:15.8-2.el8_6.aarch64",
"BaseOS-8.6.0.Z.EUS:shim-ia32-0:15.8-2.el8_6.x86_64",
"BaseOS-8.6.0.Z.EUS:shim-x64-0:15.8-2.el8_6.x86_64"
]
},
"references": [
{
"category": "self",
"summary": "Canonical URL",
"url": "https://access.redhat.com/security/cve/CVE-2023-40550"
},
{
"category": "external",
"summary": "RHBZ#2259915",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2259915"
},
{
"category": "external",
"summary": "https://www.cve.org/CVERecord?id=CVE-2023-40550",
"url": "https://www.cve.org/CVERecord?id=CVE-2023-40550"
},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2023-40550",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2023-40550"
}
],
"release_date": "2024-01-23T00:00:00+00:00",
"remediations": [
{
"category": "vendor_fix",
"date": "2024-04-29T12:31:44+00:00",
"details": "For details on how to apply this update, refer to:\n\nhttps://access.redhat.com/articles/11258",
"product_ids": [
"BaseOS-8.6.0.Z.EUS:shim-0:15.8-2.el8_6.src",
"BaseOS-8.6.0.Z.EUS:shim-aa64-0:15.8-2.el8_6.aarch64",
"BaseOS-8.6.0.Z.EUS:shim-ia32-0:15.8-2.el8_6.x86_64",
"BaseOS-8.6.0.Z.EUS:shim-x64-0:15.8-2.el8_6.x86_64"
],
"restart_required": {
"category": "none"
},
"url": "https://access.redhat.com/errata/RHSA-2024:2086"
}
],
"scores": [
{
"cvss_v3": {
"attackComplexity": "LOW",
"attackVector": "LOCAL",
"availabilityImpact": "NONE",
"baseScore": 5.5,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "HIGH",
"integrityImpact": "NONE",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N",
"version": "3.1"
},
"products": [
"BaseOS-8.6.0.Z.EUS:shim-0:15.8-2.el8_6.src",
"BaseOS-8.6.0.Z.EUS:shim-aa64-0:15.8-2.el8_6.aarch64",
"BaseOS-8.6.0.Z.EUS:shim-ia32-0:15.8-2.el8_6.x86_64",
"BaseOS-8.6.0.Z.EUS:shim-x64-0:15.8-2.el8_6.x86_64"
]
}
],
"threats": [
{
"category": "impact",
"details": "Moderate"
}
],
"title": "shim: Out-of-bound read in verify_buffer_sbat()"
},
{
"cve": "CVE-2023-40551",
"cwe": {
"id": "CWE-125",
"name": "Out-of-bounds Read"
},
"discovery_date": "2023-07-26T00:00:00+00:00",
"ids": [
{
"system_name": "Red Hat Bugzilla ID",
"text": "2259918"
}
],
"notes": [
{
"category": "description",
"text": "A flaw was found in the MZ binary format in Shim. An out-of-bounds read may occur, leading to a crash or possible exposure of sensitive data during the system\u0027s boot phase.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "shim: out of bounds read when parsing MZ binaries",
"title": "Vulnerability summary"
},
{
"category": "general",
"text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
"title": "CVSS score applicability"
}
],
"product_status": {
"fixed": [
"BaseOS-8.6.0.Z.EUS:shim-0:15.8-2.el8_6.src",
"BaseOS-8.6.0.Z.EUS:shim-aa64-0:15.8-2.el8_6.aarch64",
"BaseOS-8.6.0.Z.EUS:shim-ia32-0:15.8-2.el8_6.x86_64",
"BaseOS-8.6.0.Z.EUS:shim-x64-0:15.8-2.el8_6.x86_64"
]
},
"references": [
{
"category": "self",
"summary": "Canonical URL",
"url": "https://access.redhat.com/security/cve/CVE-2023-40551"
},
{
"category": "external",
"summary": "RHBZ#2259918",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2259918"
},
{
"category": "external",
"summary": "https://www.cve.org/CVERecord?id=CVE-2023-40551",
"url": "https://www.cve.org/CVERecord?id=CVE-2023-40551"
},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2023-40551",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2023-40551"
}
],
"release_date": "2024-01-23T00:00:00+00:00",
"remediations": [
{
"category": "vendor_fix",
"date": "2024-04-29T12:31:44+00:00",
"details": "For details on how to apply this update, refer to:\n\nhttps://access.redhat.com/articles/11258",
"product_ids": [
"BaseOS-8.6.0.Z.EUS:shim-0:15.8-2.el8_6.src",
"BaseOS-8.6.0.Z.EUS:shim-aa64-0:15.8-2.el8_6.aarch64",
"BaseOS-8.6.0.Z.EUS:shim-ia32-0:15.8-2.el8_6.x86_64",
"BaseOS-8.6.0.Z.EUS:shim-x64-0:15.8-2.el8_6.x86_64"
],
"restart_required": {
"category": "none"
},
"url": "https://access.redhat.com/errata/RHSA-2024:2086"
}
],
"scores": [
{
"cvss_v3": {
"attackComplexity": "LOW",
"attackVector": "LOCAL",
"availabilityImpact": "HIGH",
"baseScore": 5.1,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "LOW",
"integrityImpact": "NONE",
"privilegesRequired": "HIGH",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:L/I:N/A:H",
"version": "3.1"
},
"products": [
"BaseOS-8.6.0.Z.EUS:shim-0:15.8-2.el8_6.src",
"BaseOS-8.6.0.Z.EUS:shim-aa64-0:15.8-2.el8_6.aarch64",
"BaseOS-8.6.0.Z.EUS:shim-ia32-0:15.8-2.el8_6.x86_64",
"BaseOS-8.6.0.Z.EUS:shim-x64-0:15.8-2.el8_6.x86_64"
]
}
],
"threats": [
{
"category": "impact",
"details": "Moderate"
}
],
"title": "shim: out of bounds read when parsing MZ binaries"
}
]
}
SUSE-SU-2024:1368-1
Vulnerability from csaf_suse - Published: 2024-04-22 09:06 - Updated: 2024-04-22 09:06Summary
Security update for shim
Severity
Important
Notes
Title of the patch: Security update for shim
Description of the patch: This update for shim fixes the following issues:
- Update shim-install to set the TPM2 SRK algorithm (bsc#1213945)
- Limit the requirement of fde-tpm-helper-macros to the distro with
suse_version 1600 and above (bsc#1219460)
Update to version 15.8:
Security issues fixed:
- mok: fix LogError() invocation (bsc#1215099,CVE-2023-40546)
- avoid incorrectly trusting HTTP headers (bsc#1215098,CVE-2023-40547)
- Fix integer overflow on SBAT section size on 32-bit system (bsc#1215100,CVE-2023-40548)
- Authenticode: verify that the signature header is in bounds (bsc#1215101,CVE-2023-40549)
- pe: Fix an out-of-bound read in verify_buffer_sbat() (bsc#1215102,CVE-2023-40550)
- pe-relocate: Fix bounds check for MZ binaries (bsc#1215103,CVE-2023-40551)
The NX flag is disable which is same as the default value of shim-15.8, hence, not need to enable it by this patch now.
- Generate dbx during build so we don't include binary files in sources
- Don't require grub so shim can still be used with systemd-boot
- Update shim-install to fix boot failure of ext4 root file system
on RAID10 (bsc#1205855)
- Adopt the macros from fde-tpm-helper-macros to update the
signature in the sealed key after a bootloader upgrade
- Update shim-install to amend full disk encryption support
- Adopt TPM 2.0 Key File for grub2 TPM 2.0 protector
- Use the long name to specify the grub2 key protector
- cryptodisk: support TPM authorized policies
- Do not use tpm_record_pcrs unless the command is in command.lst
- Removed POST_PROCESS_PE_FLAGS=-N from the build command in shim.spec to
enable the NX compatibility flag when using post-process-pe after
discussed with grub2 experts in mail. It's useful for further development
and testing. (bsc#1205588)
Patchnames: SUSE-2024-1368,SUSE-SLE-Micro-5.3-2024-1368,SUSE-SLE-Micro-5.4-2024-1368,SUSE-SLE-Micro-5.5-2024-1368,SUSE-SLE-Module-Basesystem-15-SP5-2024-1368,SUSE-SLE-Product-HPC-15-SP3-LTSS-2024-1368,SUSE-SLE-Product-HPC-15-SP4-ESPOS-2024-1368,SUSE-SLE-Product-HPC-15-SP4-LTSS-2024-1368,SUSE-SLE-Product-SLED-15-SP4-LTSS-2024-1368,SUSE-SLE-Product-SLES-15-SP3-LTSS-2024-1368,SUSE-SLE-Product-SLES-15-SP4-LTSS-2024-1368,SUSE-SLE-Product-SLES_SAP-15-SP3-2024-1368,SUSE-SLE-Product-SLES_SAP-15-SP4-2024-1368,SUSE-SLE-Product-SUSE-Manager-Proxy-4.3-2024-1368,SUSE-SLE-Product-SUSE-Manager-Server-4.3-2024-1368,SUSE-SUSE-MicroOS-5.1-2024-1368,SUSE-SUSE-MicroOS-5.2-2024-1368,SUSE-Storage-7.1-2024-1368,openSUSE-Leap-Micro-5.3-2024-1368,openSUSE-Leap-Micro-5.4-2024-1368,openSUSE-SLE-15.5-2024-1368
Terms of use: CSAF 2.0 data is provided by SUSE under the Creative Commons License 4.0 with Attribution (CC-BY-4.0).
8.4 (High)
Affected products
Recommended
34 products
| Product | Identifier | Version | Remediation |
|---|---|---|---|
| Unresolved product id: SUSE Enterprise Storage 7.1:shim-15.8-150300.4.20.2.aarch64 | — |
Vendor Fix
|
|
| Unresolved product id: SUSE Enterprise Storage 7.1:shim-15.8-150300.4.20.2.x86_64 | — |
Vendor Fix
|
|
| Unresolved product id: SUSE Linux Enterprise High Performance Computing 15 SP3-LTSS:shim-15.8-150300.4.20.2.aarch64 | — |
Vendor Fix
|
|
| Unresolved product id: SUSE Linux Enterprise High Performance Computing 15 SP3-LTSS:shim-15.8-150300.4.20.2.x86_64 | — |
Vendor Fix
|
|
| Unresolved product id: SUSE Linux Enterprise High Performance Computing 15 SP4-ESPOS:shim-15.8-150300.4.20.2.aarch64 | — |
Vendor Fix
|
|
| Unresolved product id: SUSE Linux Enterprise High Performance Computing 15 SP4-ESPOS:shim-15.8-150300.4.20.2.x86_64 | — |
Vendor Fix
|
|
| Unresolved product id: SUSE Linux Enterprise High Performance Computing 15 SP4-LTSS:shim-15.8-150300.4.20.2.aarch64 | — |
Vendor Fix
|
|
| Unresolved product id: SUSE Linux Enterprise High Performance Computing 15 SP4-LTSS:shim-15.8-150300.4.20.2.x86_64 | — |
Vendor Fix
|
|
| Unresolved product id: SUSE Linux Enterprise Micro 5.1:shim-15.8-150300.4.20.2.aarch64 | — |
Vendor Fix
|
|
| Unresolved product id: SUSE Linux Enterprise Micro 5.1:shim-15.8-150300.4.20.2.x86_64 | — |
Vendor Fix
|
|
| Unresolved product id: SUSE Linux Enterprise Micro 5.2:shim-15.8-150300.4.20.2.aarch64 | — |
Vendor Fix
|
|
| Unresolved product id: SUSE Linux Enterprise Micro 5.2:shim-15.8-150300.4.20.2.x86_64 | — |
Vendor Fix
|
|
| Unresolved product id: SUSE Linux Enterprise Micro 5.3:shim-15.8-150300.4.20.2.aarch64 | — |
Vendor Fix
|
|
| Unresolved product id: SUSE Linux Enterprise Micro 5.3:shim-15.8-150300.4.20.2.x86_64 | — |
Vendor Fix
|
|
| Unresolved product id: SUSE Linux Enterprise Micro 5.4:shim-15.8-150300.4.20.2.aarch64 | — |
Vendor Fix
|
|
| Unresolved product id: SUSE Linux Enterprise Micro 5.4:shim-15.8-150300.4.20.2.x86_64 | — |
Vendor Fix
|
|
| Unresolved product id: SUSE Linux Enterprise Micro 5.5:shim-15.8-150300.4.20.2.aarch64 | — |
Vendor Fix
|
|
| Unresolved product id: SUSE Linux Enterprise Micro 5.5:shim-15.8-150300.4.20.2.x86_64 | — |
Vendor Fix
|
|
| Unresolved product id: SUSE Linux Enterprise Module for Basesystem 15 SP5:shim-15.8-150300.4.20.2.aarch64 | — |
Vendor Fix
|
|
| Unresolved product id: SUSE Linux Enterprise Module for Basesystem 15 SP5:shim-15.8-150300.4.20.2.x86_64 | — |
Vendor Fix
|
|
| Unresolved product id: SUSE Linux Enterprise Server 15 SP3-LTSS:shim-15.8-150300.4.20.2.aarch64 | — |
Vendor Fix
|
|
| Unresolved product id: SUSE Linux Enterprise Server 15 SP3-LTSS:shim-15.8-150300.4.20.2.x86_64 | — |
Vendor Fix
|
|
| Unresolved product id: SUSE Linux Enterprise Server 15 SP4-LTSS:shim-15.8-150300.4.20.2.aarch64 | — |
Vendor Fix
|
|
| Unresolved product id: SUSE Linux Enterprise Server 15 SP4-LTSS:shim-15.8-150300.4.20.2.x86_64 | — |
Vendor Fix
|
|
| Unresolved product id: SUSE Linux Enterprise Server for SAP Applications 15 SP3:shim-15.8-150300.4.20.2.x86_64 | — |
Vendor Fix
|
|
| Unresolved product id: SUSE Linux Enterprise Server for SAP Applications 15 SP4:shim-15.8-150300.4.20.2.x86_64 | — |
Vendor Fix
|
|
| Unresolved product id: SUSE Manager Proxy 4.3:shim-15.8-150300.4.20.2.x86_64 | — |
Vendor Fix
|
|
| Unresolved product id: SUSE Manager Server 4.3:shim-15.8-150300.4.20.2.x86_64 | — |
Vendor Fix
|
|
| Unresolved product id: openSUSE Leap 15.5:shim-15.8-150300.4.20.2.aarch64 | — |
Vendor Fix
|
|
| Unresolved product id: openSUSE Leap 15.5:shim-15.8-150300.4.20.2.x86_64 | — |
Vendor Fix
|
|
| Unresolved product id: openSUSE Leap Micro 5.3:shim-15.8-150300.4.20.2.aarch64 | — |
Vendor Fix
|
|
| Unresolved product id: openSUSE Leap Micro 5.3:shim-15.8-150300.4.20.2.x86_64 | — |
Vendor Fix
|
|
| Unresolved product id: openSUSE Leap Micro 5.4:shim-15.8-150300.4.20.2.aarch64 | — |
Vendor Fix
|
|
| Unresolved product id: openSUSE Leap Micro 5.4:shim-15.8-150300.4.20.2.x86_64 | — |
Vendor Fix
|
Threats
Impact
important
4.4 (Medium)
Affected products
Recommended
34 products
| Product | Identifier | Version | Remediation |
|---|---|---|---|
| Unresolved product id: SUSE Enterprise Storage 7.1:shim-15.8-150300.4.20.2.aarch64 | — |
Vendor Fix
|
|
| Unresolved product id: SUSE Enterprise Storage 7.1:shim-15.8-150300.4.20.2.x86_64 | — |
Vendor Fix
|
|
| Unresolved product id: SUSE Linux Enterprise High Performance Computing 15 SP3-LTSS:shim-15.8-150300.4.20.2.aarch64 | — |
Vendor Fix
|
|
| Unresolved product id: SUSE Linux Enterprise High Performance Computing 15 SP3-LTSS:shim-15.8-150300.4.20.2.x86_64 | — |
Vendor Fix
|
|
| Unresolved product id: SUSE Linux Enterprise High Performance Computing 15 SP4-ESPOS:shim-15.8-150300.4.20.2.aarch64 | — |
Vendor Fix
|
|
| Unresolved product id: SUSE Linux Enterprise High Performance Computing 15 SP4-ESPOS:shim-15.8-150300.4.20.2.x86_64 | — |
Vendor Fix
|
|
| Unresolved product id: SUSE Linux Enterprise High Performance Computing 15 SP4-LTSS:shim-15.8-150300.4.20.2.aarch64 | — |
Vendor Fix
|
|
| Unresolved product id: SUSE Linux Enterprise High Performance Computing 15 SP4-LTSS:shim-15.8-150300.4.20.2.x86_64 | — |
Vendor Fix
|
|
| Unresolved product id: SUSE Linux Enterprise Micro 5.1:shim-15.8-150300.4.20.2.aarch64 | — |
Vendor Fix
|
|
| Unresolved product id: SUSE Linux Enterprise Micro 5.1:shim-15.8-150300.4.20.2.x86_64 | — |
Vendor Fix
|
|
| Unresolved product id: SUSE Linux Enterprise Micro 5.2:shim-15.8-150300.4.20.2.aarch64 | — |
Vendor Fix
|
|
| Unresolved product id: SUSE Linux Enterprise Micro 5.2:shim-15.8-150300.4.20.2.x86_64 | — |
Vendor Fix
|
|
| Unresolved product id: SUSE Linux Enterprise Micro 5.3:shim-15.8-150300.4.20.2.aarch64 | — |
Vendor Fix
|
|
| Unresolved product id: SUSE Linux Enterprise Micro 5.3:shim-15.8-150300.4.20.2.x86_64 | — |
Vendor Fix
|
|
| Unresolved product id: SUSE Linux Enterprise Micro 5.4:shim-15.8-150300.4.20.2.aarch64 | — |
Vendor Fix
|
|
| Unresolved product id: SUSE Linux Enterprise Micro 5.4:shim-15.8-150300.4.20.2.x86_64 | — |
Vendor Fix
|
|
| Unresolved product id: SUSE Linux Enterprise Micro 5.5:shim-15.8-150300.4.20.2.aarch64 | — |
Vendor Fix
|
|
| Unresolved product id: SUSE Linux Enterprise Micro 5.5:shim-15.8-150300.4.20.2.x86_64 | — |
Vendor Fix
|
|
| Unresolved product id: SUSE Linux Enterprise Module for Basesystem 15 SP5:shim-15.8-150300.4.20.2.aarch64 | — |
Vendor Fix
|
|
| Unresolved product id: SUSE Linux Enterprise Module for Basesystem 15 SP5:shim-15.8-150300.4.20.2.x86_64 | — |
Vendor Fix
|
|
| Unresolved product id: SUSE Linux Enterprise Server 15 SP3-LTSS:shim-15.8-150300.4.20.2.aarch64 | — |
Vendor Fix
|
|
| Unresolved product id: SUSE Linux Enterprise Server 15 SP3-LTSS:shim-15.8-150300.4.20.2.x86_64 | — |
Vendor Fix
|
|
| Unresolved product id: SUSE Linux Enterprise Server 15 SP4-LTSS:shim-15.8-150300.4.20.2.aarch64 | — |
Vendor Fix
|
|
| Unresolved product id: SUSE Linux Enterprise Server 15 SP4-LTSS:shim-15.8-150300.4.20.2.x86_64 | — |
Vendor Fix
|
|
| Unresolved product id: SUSE Linux Enterprise Server for SAP Applications 15 SP3:shim-15.8-150300.4.20.2.x86_64 | — |
Vendor Fix
|
|
| Unresolved product id: SUSE Linux Enterprise Server for SAP Applications 15 SP4:shim-15.8-150300.4.20.2.x86_64 | — |
Vendor Fix
|
|
| Unresolved product id: SUSE Manager Proxy 4.3:shim-15.8-150300.4.20.2.x86_64 | — |
Vendor Fix
|
|
| Unresolved product id: SUSE Manager Server 4.3:shim-15.8-150300.4.20.2.x86_64 | — |
Vendor Fix
|
|
| Unresolved product id: openSUSE Leap 15.5:shim-15.8-150300.4.20.2.aarch64 | — |
Vendor Fix
|
|
| Unresolved product id: openSUSE Leap 15.5:shim-15.8-150300.4.20.2.x86_64 | — |
Vendor Fix
|
|
| Unresolved product id: openSUSE Leap Micro 5.3:shim-15.8-150300.4.20.2.aarch64 | — |
Vendor Fix
|
|
| Unresolved product id: openSUSE Leap Micro 5.3:shim-15.8-150300.4.20.2.x86_64 | — |
Vendor Fix
|
|
| Unresolved product id: openSUSE Leap Micro 5.4:shim-15.8-150300.4.20.2.aarch64 | — |
Vendor Fix
|
|
| Unresolved product id: openSUSE Leap Micro 5.4:shim-15.8-150300.4.20.2.x86_64 | — |
Vendor Fix
|
Threats
Impact
moderate
7.1 (High)
Affected products
Recommended
34 products
| Product | Identifier | Version | Remediation |
|---|---|---|---|
| Unresolved product id: SUSE Enterprise Storage 7.1:shim-15.8-150300.4.20.2.aarch64 | — |
Vendor Fix
|
|
| Unresolved product id: SUSE Enterprise Storage 7.1:shim-15.8-150300.4.20.2.x86_64 | — |
Vendor Fix
|
|
| Unresolved product id: SUSE Linux Enterprise High Performance Computing 15 SP3-LTSS:shim-15.8-150300.4.20.2.aarch64 | — |
Vendor Fix
|
|
| Unresolved product id: SUSE Linux Enterprise High Performance Computing 15 SP3-LTSS:shim-15.8-150300.4.20.2.x86_64 | — |
Vendor Fix
|
|
| Unresolved product id: SUSE Linux Enterprise High Performance Computing 15 SP4-ESPOS:shim-15.8-150300.4.20.2.aarch64 | — |
Vendor Fix
|
|
| Unresolved product id: SUSE Linux Enterprise High Performance Computing 15 SP4-ESPOS:shim-15.8-150300.4.20.2.x86_64 | — |
Vendor Fix
|
|
| Unresolved product id: SUSE Linux Enterprise High Performance Computing 15 SP4-LTSS:shim-15.8-150300.4.20.2.aarch64 | — |
Vendor Fix
|
|
| Unresolved product id: SUSE Linux Enterprise High Performance Computing 15 SP4-LTSS:shim-15.8-150300.4.20.2.x86_64 | — |
Vendor Fix
|
|
| Unresolved product id: SUSE Linux Enterprise Micro 5.1:shim-15.8-150300.4.20.2.aarch64 | — |
Vendor Fix
|
|
| Unresolved product id: SUSE Linux Enterprise Micro 5.1:shim-15.8-150300.4.20.2.x86_64 | — |
Vendor Fix
|
|
| Unresolved product id: SUSE Linux Enterprise Micro 5.2:shim-15.8-150300.4.20.2.aarch64 | — |
Vendor Fix
|
|
| Unresolved product id: SUSE Linux Enterprise Micro 5.2:shim-15.8-150300.4.20.2.x86_64 | — |
Vendor Fix
|
|
| Unresolved product id: SUSE Linux Enterprise Micro 5.3:shim-15.8-150300.4.20.2.aarch64 | — |
Vendor Fix
|
|
| Unresolved product id: SUSE Linux Enterprise Micro 5.3:shim-15.8-150300.4.20.2.x86_64 | — |
Vendor Fix
|
|
| Unresolved product id: SUSE Linux Enterprise Micro 5.4:shim-15.8-150300.4.20.2.aarch64 | — |
Vendor Fix
|
|
| Unresolved product id: SUSE Linux Enterprise Micro 5.4:shim-15.8-150300.4.20.2.x86_64 | — |
Vendor Fix
|
|
| Unresolved product id: SUSE Linux Enterprise Micro 5.5:shim-15.8-150300.4.20.2.aarch64 | — |
Vendor Fix
|
|
| Unresolved product id: SUSE Linux Enterprise Micro 5.5:shim-15.8-150300.4.20.2.x86_64 | — |
Vendor Fix
|
|
| Unresolved product id: SUSE Linux Enterprise Module for Basesystem 15 SP5:shim-15.8-150300.4.20.2.aarch64 | — |
Vendor Fix
|
|
| Unresolved product id: SUSE Linux Enterprise Module for Basesystem 15 SP5:shim-15.8-150300.4.20.2.x86_64 | — |
Vendor Fix
|
|
| Unresolved product id: SUSE Linux Enterprise Server 15 SP3-LTSS:shim-15.8-150300.4.20.2.aarch64 | — |
Vendor Fix
|
|
| Unresolved product id: SUSE Linux Enterprise Server 15 SP3-LTSS:shim-15.8-150300.4.20.2.x86_64 | — |
Vendor Fix
|
|
| Unresolved product id: SUSE Linux Enterprise Server 15 SP4-LTSS:shim-15.8-150300.4.20.2.aarch64 | — |
Vendor Fix
|
|
| Unresolved product id: SUSE Linux Enterprise Server 15 SP4-LTSS:shim-15.8-150300.4.20.2.x86_64 | — |
Vendor Fix
|
|
| Unresolved product id: SUSE Linux Enterprise Server for SAP Applications 15 SP3:shim-15.8-150300.4.20.2.x86_64 | — |
Vendor Fix
|
|
| Unresolved product id: SUSE Linux Enterprise Server for SAP Applications 15 SP4:shim-15.8-150300.4.20.2.x86_64 | — |
Vendor Fix
|
|
| Unresolved product id: SUSE Manager Proxy 4.3:shim-15.8-150300.4.20.2.x86_64 | — |
Vendor Fix
|
|
| Unresolved product id: SUSE Manager Server 4.3:shim-15.8-150300.4.20.2.x86_64 | — |
Vendor Fix
|
|
| Unresolved product id: openSUSE Leap 15.5:shim-15.8-150300.4.20.2.aarch64 | — |
Vendor Fix
|
|
| Unresolved product id: openSUSE Leap 15.5:shim-15.8-150300.4.20.2.x86_64 | — |
Vendor Fix
|
|
| Unresolved product id: openSUSE Leap Micro 5.3:shim-15.8-150300.4.20.2.aarch64 | — |
Vendor Fix
|
|
| Unresolved product id: openSUSE Leap Micro 5.3:shim-15.8-150300.4.20.2.x86_64 | — |
Vendor Fix
|
|
| Unresolved product id: openSUSE Leap Micro 5.4:shim-15.8-150300.4.20.2.aarch64 | — |
Vendor Fix
|
|
| Unresolved product id: openSUSE Leap Micro 5.4:shim-15.8-150300.4.20.2.x86_64 | — |
Vendor Fix
|
Threats
Impact
important
6.7 (Medium)
Affected products
Recommended
34 products
| Product | Identifier | Version | Remediation |
|---|---|---|---|
| Unresolved product id: SUSE Enterprise Storage 7.1:shim-15.8-150300.4.20.2.aarch64 | — |
Vendor Fix
|
|
| Unresolved product id: SUSE Enterprise Storage 7.1:shim-15.8-150300.4.20.2.x86_64 | — |
Vendor Fix
|
|
| Unresolved product id: SUSE Linux Enterprise High Performance Computing 15 SP3-LTSS:shim-15.8-150300.4.20.2.aarch64 | — |
Vendor Fix
|
|
| Unresolved product id: SUSE Linux Enterprise High Performance Computing 15 SP3-LTSS:shim-15.8-150300.4.20.2.x86_64 | — |
Vendor Fix
|
|
| Unresolved product id: SUSE Linux Enterprise High Performance Computing 15 SP4-ESPOS:shim-15.8-150300.4.20.2.aarch64 | — |
Vendor Fix
|
|
| Unresolved product id: SUSE Linux Enterprise High Performance Computing 15 SP4-ESPOS:shim-15.8-150300.4.20.2.x86_64 | — |
Vendor Fix
|
|
| Unresolved product id: SUSE Linux Enterprise High Performance Computing 15 SP4-LTSS:shim-15.8-150300.4.20.2.aarch64 | — |
Vendor Fix
|
|
| Unresolved product id: SUSE Linux Enterprise High Performance Computing 15 SP4-LTSS:shim-15.8-150300.4.20.2.x86_64 | — |
Vendor Fix
|
|
| Unresolved product id: SUSE Linux Enterprise Micro 5.1:shim-15.8-150300.4.20.2.aarch64 | — |
Vendor Fix
|
|
| Unresolved product id: SUSE Linux Enterprise Micro 5.1:shim-15.8-150300.4.20.2.x86_64 | — |
Vendor Fix
|
|
| Unresolved product id: SUSE Linux Enterprise Micro 5.2:shim-15.8-150300.4.20.2.aarch64 | — |
Vendor Fix
|
|
| Unresolved product id: SUSE Linux Enterprise Micro 5.2:shim-15.8-150300.4.20.2.x86_64 | — |
Vendor Fix
|
|
| Unresolved product id: SUSE Linux Enterprise Micro 5.3:shim-15.8-150300.4.20.2.aarch64 | — |
Vendor Fix
|
|
| Unresolved product id: SUSE Linux Enterprise Micro 5.3:shim-15.8-150300.4.20.2.x86_64 | — |
Vendor Fix
|
|
| Unresolved product id: SUSE Linux Enterprise Micro 5.4:shim-15.8-150300.4.20.2.aarch64 | — |
Vendor Fix
|
|
| Unresolved product id: SUSE Linux Enterprise Micro 5.4:shim-15.8-150300.4.20.2.x86_64 | — |
Vendor Fix
|
|
| Unresolved product id: SUSE Linux Enterprise Micro 5.5:shim-15.8-150300.4.20.2.aarch64 | — |
Vendor Fix
|
|
| Unresolved product id: SUSE Linux Enterprise Micro 5.5:shim-15.8-150300.4.20.2.x86_64 | — |
Vendor Fix
|
|
| Unresolved product id: SUSE Linux Enterprise Module for Basesystem 15 SP5:shim-15.8-150300.4.20.2.aarch64 | — |
Vendor Fix
|
|
| Unresolved product id: SUSE Linux Enterprise Module for Basesystem 15 SP5:shim-15.8-150300.4.20.2.x86_64 | — |
Vendor Fix
|
|
| Unresolved product id: SUSE Linux Enterprise Server 15 SP3-LTSS:shim-15.8-150300.4.20.2.aarch64 | — |
Vendor Fix
|
|
| Unresolved product id: SUSE Linux Enterprise Server 15 SP3-LTSS:shim-15.8-150300.4.20.2.x86_64 | — |
Vendor Fix
|
|
| Unresolved product id: SUSE Linux Enterprise Server 15 SP4-LTSS:shim-15.8-150300.4.20.2.aarch64 | — |
Vendor Fix
|
|
| Unresolved product id: SUSE Linux Enterprise Server 15 SP4-LTSS:shim-15.8-150300.4.20.2.x86_64 | — |
Vendor Fix
|
|
| Unresolved product id: SUSE Linux Enterprise Server for SAP Applications 15 SP3:shim-15.8-150300.4.20.2.x86_64 | — |
Vendor Fix
|
|
| Unresolved product id: SUSE Linux Enterprise Server for SAP Applications 15 SP4:shim-15.8-150300.4.20.2.x86_64 | — |
Vendor Fix
|
|
| Unresolved product id: SUSE Manager Proxy 4.3:shim-15.8-150300.4.20.2.x86_64 | — |
Vendor Fix
|
|
| Unresolved product id: SUSE Manager Server 4.3:shim-15.8-150300.4.20.2.x86_64 | — |
Vendor Fix
|
|
| Unresolved product id: openSUSE Leap 15.5:shim-15.8-150300.4.20.2.aarch64 | — |
Vendor Fix
|
|
| Unresolved product id: openSUSE Leap 15.5:shim-15.8-150300.4.20.2.x86_64 | — |
Vendor Fix
|
|
| Unresolved product id: openSUSE Leap Micro 5.3:shim-15.8-150300.4.20.2.aarch64 | — |
Vendor Fix
|
|
| Unresolved product id: openSUSE Leap Micro 5.3:shim-15.8-150300.4.20.2.x86_64 | — |
Vendor Fix
|
|
| Unresolved product id: openSUSE Leap Micro 5.4:shim-15.8-150300.4.20.2.aarch64 | — |
Vendor Fix
|
|
| Unresolved product id: openSUSE Leap Micro 5.4:shim-15.8-150300.4.20.2.x86_64 | — |
Vendor Fix
|
Threats
Impact
moderate
4.4 (Medium)
Affected products
Recommended
34 products
| Product | Identifier | Version | Remediation |
|---|---|---|---|
| Unresolved product id: SUSE Enterprise Storage 7.1:shim-15.8-150300.4.20.2.aarch64 | — |
Vendor Fix
|
|
| Unresolved product id: SUSE Enterprise Storage 7.1:shim-15.8-150300.4.20.2.x86_64 | — |
Vendor Fix
|
|
| Unresolved product id: SUSE Linux Enterprise High Performance Computing 15 SP3-LTSS:shim-15.8-150300.4.20.2.aarch64 | — |
Vendor Fix
|
|
| Unresolved product id: SUSE Linux Enterprise High Performance Computing 15 SP3-LTSS:shim-15.8-150300.4.20.2.x86_64 | — |
Vendor Fix
|
|
| Unresolved product id: SUSE Linux Enterprise High Performance Computing 15 SP4-ESPOS:shim-15.8-150300.4.20.2.aarch64 | — |
Vendor Fix
|
|
| Unresolved product id: SUSE Linux Enterprise High Performance Computing 15 SP4-ESPOS:shim-15.8-150300.4.20.2.x86_64 | — |
Vendor Fix
|
|
| Unresolved product id: SUSE Linux Enterprise High Performance Computing 15 SP4-LTSS:shim-15.8-150300.4.20.2.aarch64 | — |
Vendor Fix
|
|
| Unresolved product id: SUSE Linux Enterprise High Performance Computing 15 SP4-LTSS:shim-15.8-150300.4.20.2.x86_64 | — |
Vendor Fix
|
|
| Unresolved product id: SUSE Linux Enterprise Micro 5.1:shim-15.8-150300.4.20.2.aarch64 | — |
Vendor Fix
|
|
| Unresolved product id: SUSE Linux Enterprise Micro 5.1:shim-15.8-150300.4.20.2.x86_64 | — |
Vendor Fix
|
|
| Unresolved product id: SUSE Linux Enterprise Micro 5.2:shim-15.8-150300.4.20.2.aarch64 | — |
Vendor Fix
|
|
| Unresolved product id: SUSE Linux Enterprise Micro 5.2:shim-15.8-150300.4.20.2.x86_64 | — |
Vendor Fix
|
|
| Unresolved product id: SUSE Linux Enterprise Micro 5.3:shim-15.8-150300.4.20.2.aarch64 | — |
Vendor Fix
|
|
| Unresolved product id: SUSE Linux Enterprise Micro 5.3:shim-15.8-150300.4.20.2.x86_64 | — |
Vendor Fix
|
|
| Unresolved product id: SUSE Linux Enterprise Micro 5.4:shim-15.8-150300.4.20.2.aarch64 | — |
Vendor Fix
|
|
| Unresolved product id: SUSE Linux Enterprise Micro 5.4:shim-15.8-150300.4.20.2.x86_64 | — |
Vendor Fix
|
|
| Unresolved product id: SUSE Linux Enterprise Micro 5.5:shim-15.8-150300.4.20.2.aarch64 | — |
Vendor Fix
|
|
| Unresolved product id: SUSE Linux Enterprise Micro 5.5:shim-15.8-150300.4.20.2.x86_64 | — |
Vendor Fix
|
|
| Unresolved product id: SUSE Linux Enterprise Module for Basesystem 15 SP5:shim-15.8-150300.4.20.2.aarch64 | — |
Vendor Fix
|
|
| Unresolved product id: SUSE Linux Enterprise Module for Basesystem 15 SP5:shim-15.8-150300.4.20.2.x86_64 | — |
Vendor Fix
|
|
| Unresolved product id: SUSE Linux Enterprise Server 15 SP3-LTSS:shim-15.8-150300.4.20.2.aarch64 | — |
Vendor Fix
|
|
| Unresolved product id: SUSE Linux Enterprise Server 15 SP3-LTSS:shim-15.8-150300.4.20.2.x86_64 | — |
Vendor Fix
|
|
| Unresolved product id: SUSE Linux Enterprise Server 15 SP4-LTSS:shim-15.8-150300.4.20.2.aarch64 | — |
Vendor Fix
|
|
| Unresolved product id: SUSE Linux Enterprise Server 15 SP4-LTSS:shim-15.8-150300.4.20.2.x86_64 | — |
Vendor Fix
|
|
| Unresolved product id: SUSE Linux Enterprise Server for SAP Applications 15 SP3:shim-15.8-150300.4.20.2.x86_64 | — |
Vendor Fix
|
|
| Unresolved product id: SUSE Linux Enterprise Server for SAP Applications 15 SP4:shim-15.8-150300.4.20.2.x86_64 | — |
Vendor Fix
|
|
| Unresolved product id: SUSE Manager Proxy 4.3:shim-15.8-150300.4.20.2.x86_64 | — |
Vendor Fix
|
|
| Unresolved product id: SUSE Manager Server 4.3:shim-15.8-150300.4.20.2.x86_64 | — |
Vendor Fix
|
|
| Unresolved product id: openSUSE Leap 15.5:shim-15.8-150300.4.20.2.aarch64 | — |
Vendor Fix
|
|
| Unresolved product id: openSUSE Leap 15.5:shim-15.8-150300.4.20.2.x86_64 | — |
Vendor Fix
|
|
| Unresolved product id: openSUSE Leap Micro 5.3:shim-15.8-150300.4.20.2.aarch64 | — |
Vendor Fix
|
|
| Unresolved product id: openSUSE Leap Micro 5.3:shim-15.8-150300.4.20.2.x86_64 | — |
Vendor Fix
|
|
| Unresolved product id: openSUSE Leap Micro 5.4:shim-15.8-150300.4.20.2.aarch64 | — |
Vendor Fix
|
|
| Unresolved product id: openSUSE Leap Micro 5.4:shim-15.8-150300.4.20.2.x86_64 | — |
Vendor Fix
|
Threats
Impact
moderate
4.2 (Medium)
Affected products
Recommended
34 products
| Product | Identifier | Version | Remediation |
|---|---|---|---|
| Unresolved product id: SUSE Enterprise Storage 7.1:shim-15.8-150300.4.20.2.aarch64 | — |
Vendor Fix
|
|
| Unresolved product id: SUSE Enterprise Storage 7.1:shim-15.8-150300.4.20.2.x86_64 | — |
Vendor Fix
|
|
| Unresolved product id: SUSE Linux Enterprise High Performance Computing 15 SP3-LTSS:shim-15.8-150300.4.20.2.aarch64 | — |
Vendor Fix
|
|
| Unresolved product id: SUSE Linux Enterprise High Performance Computing 15 SP3-LTSS:shim-15.8-150300.4.20.2.x86_64 | — |
Vendor Fix
|
|
| Unresolved product id: SUSE Linux Enterprise High Performance Computing 15 SP4-ESPOS:shim-15.8-150300.4.20.2.aarch64 | — |
Vendor Fix
|
|
| Unresolved product id: SUSE Linux Enterprise High Performance Computing 15 SP4-ESPOS:shim-15.8-150300.4.20.2.x86_64 | — |
Vendor Fix
|
|
| Unresolved product id: SUSE Linux Enterprise High Performance Computing 15 SP4-LTSS:shim-15.8-150300.4.20.2.aarch64 | — |
Vendor Fix
|
|
| Unresolved product id: SUSE Linux Enterprise High Performance Computing 15 SP4-LTSS:shim-15.8-150300.4.20.2.x86_64 | — |
Vendor Fix
|
|
| Unresolved product id: SUSE Linux Enterprise Micro 5.1:shim-15.8-150300.4.20.2.aarch64 | — |
Vendor Fix
|
|
| Unresolved product id: SUSE Linux Enterprise Micro 5.1:shim-15.8-150300.4.20.2.x86_64 | — |
Vendor Fix
|
|
| Unresolved product id: SUSE Linux Enterprise Micro 5.2:shim-15.8-150300.4.20.2.aarch64 | — |
Vendor Fix
|
|
| Unresolved product id: SUSE Linux Enterprise Micro 5.2:shim-15.8-150300.4.20.2.x86_64 | — |
Vendor Fix
|
|
| Unresolved product id: SUSE Linux Enterprise Micro 5.3:shim-15.8-150300.4.20.2.aarch64 | — |
Vendor Fix
|
|
| Unresolved product id: SUSE Linux Enterprise Micro 5.3:shim-15.8-150300.4.20.2.x86_64 | — |
Vendor Fix
|
|
| Unresolved product id: SUSE Linux Enterprise Micro 5.4:shim-15.8-150300.4.20.2.aarch64 | — |
Vendor Fix
|
|
| Unresolved product id: SUSE Linux Enterprise Micro 5.4:shim-15.8-150300.4.20.2.x86_64 | — |
Vendor Fix
|
|
| Unresolved product id: SUSE Linux Enterprise Micro 5.5:shim-15.8-150300.4.20.2.aarch64 | — |
Vendor Fix
|
|
| Unresolved product id: SUSE Linux Enterprise Micro 5.5:shim-15.8-150300.4.20.2.x86_64 | — |
Vendor Fix
|
|
| Unresolved product id: SUSE Linux Enterprise Module for Basesystem 15 SP5:shim-15.8-150300.4.20.2.aarch64 | — |
Vendor Fix
|
|
| Unresolved product id: SUSE Linux Enterprise Module for Basesystem 15 SP5:shim-15.8-150300.4.20.2.x86_64 | — |
Vendor Fix
|
|
| Unresolved product id: SUSE Linux Enterprise Server 15 SP3-LTSS:shim-15.8-150300.4.20.2.aarch64 | — |
Vendor Fix
|
|
| Unresolved product id: SUSE Linux Enterprise Server 15 SP3-LTSS:shim-15.8-150300.4.20.2.x86_64 | — |
Vendor Fix
|
|
| Unresolved product id: SUSE Linux Enterprise Server 15 SP4-LTSS:shim-15.8-150300.4.20.2.aarch64 | — |
Vendor Fix
|
|
| Unresolved product id: SUSE Linux Enterprise Server 15 SP4-LTSS:shim-15.8-150300.4.20.2.x86_64 | — |
Vendor Fix
|
|
| Unresolved product id: SUSE Linux Enterprise Server for SAP Applications 15 SP3:shim-15.8-150300.4.20.2.x86_64 | — |
Vendor Fix
|
|
| Unresolved product id: SUSE Linux Enterprise Server for SAP Applications 15 SP4:shim-15.8-150300.4.20.2.x86_64 | — |
Vendor Fix
|
|
| Unresolved product id: SUSE Manager Proxy 4.3:shim-15.8-150300.4.20.2.x86_64 | — |
Vendor Fix
|
|
| Unresolved product id: SUSE Manager Server 4.3:shim-15.8-150300.4.20.2.x86_64 | — |
Vendor Fix
|
|
| Unresolved product id: openSUSE Leap 15.5:shim-15.8-150300.4.20.2.aarch64 | — |
Vendor Fix
|
|
| Unresolved product id: openSUSE Leap 15.5:shim-15.8-150300.4.20.2.x86_64 | — |
Vendor Fix
|
|
| Unresolved product id: openSUSE Leap Micro 5.3:shim-15.8-150300.4.20.2.aarch64 | — |
Vendor Fix
|
|
| Unresolved product id: openSUSE Leap Micro 5.3:shim-15.8-150300.4.20.2.x86_64 | — |
Vendor Fix
|
|
| Unresolved product id: openSUSE Leap Micro 5.4:shim-15.8-150300.4.20.2.aarch64 | — |
Vendor Fix
|
|
| Unresolved product id: openSUSE Leap Micro 5.4:shim-15.8-150300.4.20.2.x86_64 | — |
Vendor Fix
|
Threats
Impact
moderate
4.4 (Medium)
Affected products
Recommended
34 products
| Product | Identifier | Version | Remediation |
|---|---|---|---|
| Unresolved product id: SUSE Enterprise Storage 7.1:shim-15.8-150300.4.20.2.aarch64 | — |
Vendor Fix
|
|
| Unresolved product id: SUSE Enterprise Storage 7.1:shim-15.8-150300.4.20.2.x86_64 | — |
Vendor Fix
|
|
| Unresolved product id: SUSE Linux Enterprise High Performance Computing 15 SP3-LTSS:shim-15.8-150300.4.20.2.aarch64 | — |
Vendor Fix
|
|
| Unresolved product id: SUSE Linux Enterprise High Performance Computing 15 SP3-LTSS:shim-15.8-150300.4.20.2.x86_64 | — |
Vendor Fix
|
|
| Unresolved product id: SUSE Linux Enterprise High Performance Computing 15 SP4-ESPOS:shim-15.8-150300.4.20.2.aarch64 | — |
Vendor Fix
|
|
| Unresolved product id: SUSE Linux Enterprise High Performance Computing 15 SP4-ESPOS:shim-15.8-150300.4.20.2.x86_64 | — |
Vendor Fix
|
|
| Unresolved product id: SUSE Linux Enterprise High Performance Computing 15 SP4-LTSS:shim-15.8-150300.4.20.2.aarch64 | — |
Vendor Fix
|
|
| Unresolved product id: SUSE Linux Enterprise High Performance Computing 15 SP4-LTSS:shim-15.8-150300.4.20.2.x86_64 | — |
Vendor Fix
|
|
| Unresolved product id: SUSE Linux Enterprise Micro 5.1:shim-15.8-150300.4.20.2.aarch64 | — |
Vendor Fix
|
|
| Unresolved product id: SUSE Linux Enterprise Micro 5.1:shim-15.8-150300.4.20.2.x86_64 | — |
Vendor Fix
|
|
| Unresolved product id: SUSE Linux Enterprise Micro 5.2:shim-15.8-150300.4.20.2.aarch64 | — |
Vendor Fix
|
|
| Unresolved product id: SUSE Linux Enterprise Micro 5.2:shim-15.8-150300.4.20.2.x86_64 | — |
Vendor Fix
|
|
| Unresolved product id: SUSE Linux Enterprise Micro 5.3:shim-15.8-150300.4.20.2.aarch64 | — |
Vendor Fix
|
|
| Unresolved product id: SUSE Linux Enterprise Micro 5.3:shim-15.8-150300.4.20.2.x86_64 | — |
Vendor Fix
|
|
| Unresolved product id: SUSE Linux Enterprise Micro 5.4:shim-15.8-150300.4.20.2.aarch64 | — |
Vendor Fix
|
|
| Unresolved product id: SUSE Linux Enterprise Micro 5.4:shim-15.8-150300.4.20.2.x86_64 | — |
Vendor Fix
|
|
| Unresolved product id: SUSE Linux Enterprise Micro 5.5:shim-15.8-150300.4.20.2.aarch64 | — |
Vendor Fix
|
|
| Unresolved product id: SUSE Linux Enterprise Micro 5.5:shim-15.8-150300.4.20.2.x86_64 | — |
Vendor Fix
|
|
| Unresolved product id: SUSE Linux Enterprise Module for Basesystem 15 SP5:shim-15.8-150300.4.20.2.aarch64 | — |
Vendor Fix
|
|
| Unresolved product id: SUSE Linux Enterprise Module for Basesystem 15 SP5:shim-15.8-150300.4.20.2.x86_64 | — |
Vendor Fix
|
|
| Unresolved product id: SUSE Linux Enterprise Server 15 SP3-LTSS:shim-15.8-150300.4.20.2.aarch64 | — |
Vendor Fix
|
|
| Unresolved product id: SUSE Linux Enterprise Server 15 SP3-LTSS:shim-15.8-150300.4.20.2.x86_64 | — |
Vendor Fix
|
|
| Unresolved product id: SUSE Linux Enterprise Server 15 SP4-LTSS:shim-15.8-150300.4.20.2.aarch64 | — |
Vendor Fix
|
|
| Unresolved product id: SUSE Linux Enterprise Server 15 SP4-LTSS:shim-15.8-150300.4.20.2.x86_64 | — |
Vendor Fix
|
|
| Unresolved product id: SUSE Linux Enterprise Server for SAP Applications 15 SP3:shim-15.8-150300.4.20.2.x86_64 | — |
Vendor Fix
|
|
| Unresolved product id: SUSE Linux Enterprise Server for SAP Applications 15 SP4:shim-15.8-150300.4.20.2.x86_64 | — |
Vendor Fix
|
|
| Unresolved product id: SUSE Manager Proxy 4.3:shim-15.8-150300.4.20.2.x86_64 | — |
Vendor Fix
|
|
| Unresolved product id: SUSE Manager Server 4.3:shim-15.8-150300.4.20.2.x86_64 | — |
Vendor Fix
|
|
| Unresolved product id: openSUSE Leap 15.5:shim-15.8-150300.4.20.2.aarch64 | — |
Vendor Fix
|
|
| Unresolved product id: openSUSE Leap 15.5:shim-15.8-150300.4.20.2.x86_64 | — |
Vendor Fix
|
|
| Unresolved product id: openSUSE Leap Micro 5.3:shim-15.8-150300.4.20.2.aarch64 | — |
Vendor Fix
|
|
| Unresolved product id: openSUSE Leap Micro 5.3:shim-15.8-150300.4.20.2.x86_64 | — |
Vendor Fix
|
|
| Unresolved product id: openSUSE Leap Micro 5.4:shim-15.8-150300.4.20.2.aarch64 | — |
Vendor Fix
|
|
| Unresolved product id: openSUSE Leap Micro 5.4:shim-15.8-150300.4.20.2.x86_64 | — |
Vendor Fix
|
Threats
Impact
moderate
References
40 references
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"text": "This update for shim fixes the following issues:\n\n- Update shim-install to set the TPM2 SRK algorithm (bsc#1213945)\n- Limit the requirement of fde-tpm-helper-macros to the distro with\n suse_version 1600 and above (bsc#1219460)\n\nUpdate to version 15.8:\n\nSecurity issues fixed:\n\n- mok: fix LogError() invocation (bsc#1215099,CVE-2023-40546)\n- avoid incorrectly trusting HTTP headers (bsc#1215098,CVE-2023-40547)\n- Fix integer overflow on SBAT section size on 32-bit system (bsc#1215100,CVE-2023-40548)\n- Authenticode: verify that the signature header is in bounds (bsc#1215101,CVE-2023-40549)\n- pe: Fix an out-of-bound read in verify_buffer_sbat() (bsc#1215102,CVE-2023-40550)\n- pe-relocate: Fix bounds check for MZ binaries (bsc#1215103,CVE-2023-40551)\n\n \nThe NX flag is disable which is same as the default value of shim-15.8, hence, not need to enable it by this patch now.\n\n- Generate dbx during build so we don\u0027t include binary files in sources\n- Don\u0027t require grub so shim can still be used with systemd-boot\n- Update shim-install to fix boot failure of ext4 root file system\n on RAID10 (bsc#1205855)\n- Adopt the macros from fde-tpm-helper-macros to update the\n signature in the sealed key after a bootloader upgrade\n\n- Update shim-install to amend full disk encryption support\n - Adopt TPM 2.0 Key File for grub2 TPM 2.0 protector\n - Use the long name to specify the grub2 key protector\n - cryptodisk: support TPM authorized policies\n - Do not use tpm_record_pcrs unless the command is in command.lst\n\n- Removed POST_PROCESS_PE_FLAGS=-N from the build command in shim.spec to\n enable the NX compatibility flag when using post-process-pe after\n discussed with grub2 experts in mail. It\u0027s useful for further development\n and testing. (bsc#1205588)\n",
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"baseSeverity": "MEDIUM",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H",
"version": "3.1"
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"threats": [
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"date": "2024-04-22T09:06:33Z",
"details": "moderate"
}
],
"title": "CVE-2023-40551"
}
]
}
SUSE-SU-2024:1461-1
Vulnerability from csaf_suse - Published: 2024-04-29 11:19 - Updated: 2024-04-29 11:19Summary
Security update for shim
Severity
Important
Notes
Title of the patch: Security update for shim
Description of the patch: This update for shim fixes the following issues:
- Update shim-install to set the TPM2 SRK algorithm (bsc#1213945)
- Limit the requirement of fde-tpm-helper-macros to the distro with
suse_version 1600 and above (bsc#1219460)
Update to version 15.8:
Security issues fixed:
- mok: fix LogError() invocation (bsc#1215099,CVE-2023-40546)
- avoid incorrectly trusting HTTP headers (bsc#1215098,CVE-2023-40547)
- Fix integer overflow on SBAT section size on 32-bit system (bsc#1215100,CVE-2023-40548)
- Authenticode: verify that the signature header is in bounds (bsc#1215101,CVE-2023-40549)
- pe: Fix an out-of-bound read in verify_buffer_sbat() (bsc#1215102,CVE-2023-40550)
- pe-relocate: Fix bounds check for MZ binaries (bsc#1215103,CVE-2023-40551)
The NX flag is disable which is same as the default value of shim-15.8, hence, not need to enable it by this patch now.
- Generate dbx during build so we don't include binary files in sources
- Don't require grub so shim can still be used with systemd-boot
- Update shim-install to fix boot failure of ext4 root file system
on RAID10 (bsc#1205855)
- Adopt the macros from fde-tpm-helper-macros to update the
signature in the sealed key after a bootloader upgrade
- Update shim-install to amend full disk encryption support
- Adopt TPM 2.0 Key File for grub2 TPM 2.0 protector
- Use the long name to specify the grub2 key protector
- cryptodisk: support TPM authorized policies
- Do not use tpm_record_pcrs unless the command is in command.lst
- Removed POST_PROCESS_PE_FLAGS=-N from the build command in shim.spec to
enable the NX compatibility flag when using post-process-pe after
discussed with grub2 experts in mail. It's useful for further development
and testing. (bsc#1205588)
Patchnames: SUSE-2024-1461,SUSE-SLE-Product-HPC-15-SP2-LTSS-2024-1461,SUSE-SLE-Product-SLES-15-SP2-LTSS-2024-1461,SUSE-SLE-Product-SLES_SAP-15-SP2-2024-1461
Terms of use: CSAF 2.0 data is provided by SUSE under the Creative Commons License 4.0 with Attribution (CC-BY-4.0).
8.4 (High)
Affected products
Recommended
3 products
| Product | Identifier | Version | Remediation |
|---|---|---|---|
| Unresolved product id: SUSE Linux Enterprise High Performance Computing 15 SP2-LTSS:shim-15.8-150100.3.38.1.x86_64 | — |
Vendor Fix
|
|
| Unresolved product id: SUSE Linux Enterprise Server 15 SP2-LTSS:shim-15.8-150100.3.38.1.x86_64 | — |
Vendor Fix
|
|
| Unresolved product id: SUSE Linux Enterprise Server for SAP Applications 15 SP2:shim-15.8-150100.3.38.1.x86_64 | — |
Vendor Fix
|
Threats
Impact
important
4.4 (Medium)
Affected products
Recommended
3 products
| Product | Identifier | Version | Remediation |
|---|---|---|---|
| Unresolved product id: SUSE Linux Enterprise High Performance Computing 15 SP2-LTSS:shim-15.8-150100.3.38.1.x86_64 | — |
Vendor Fix
|
|
| Unresolved product id: SUSE Linux Enterprise Server 15 SP2-LTSS:shim-15.8-150100.3.38.1.x86_64 | — |
Vendor Fix
|
|
| Unresolved product id: SUSE Linux Enterprise Server for SAP Applications 15 SP2:shim-15.8-150100.3.38.1.x86_64 | — |
Vendor Fix
|
Threats
Impact
moderate
7.1 (High)
Affected products
Recommended
3 products
| Product | Identifier | Version | Remediation |
|---|---|---|---|
| Unresolved product id: SUSE Linux Enterprise High Performance Computing 15 SP2-LTSS:shim-15.8-150100.3.38.1.x86_64 | — |
Vendor Fix
|
|
| Unresolved product id: SUSE Linux Enterprise Server 15 SP2-LTSS:shim-15.8-150100.3.38.1.x86_64 | — |
Vendor Fix
|
|
| Unresolved product id: SUSE Linux Enterprise Server for SAP Applications 15 SP2:shim-15.8-150100.3.38.1.x86_64 | — |
Vendor Fix
|
Threats
Impact
important
6.7 (Medium)
Affected products
Recommended
3 products
| Product | Identifier | Version | Remediation |
|---|---|---|---|
| Unresolved product id: SUSE Linux Enterprise High Performance Computing 15 SP2-LTSS:shim-15.8-150100.3.38.1.x86_64 | — |
Vendor Fix
|
|
| Unresolved product id: SUSE Linux Enterprise Server 15 SP2-LTSS:shim-15.8-150100.3.38.1.x86_64 | — |
Vendor Fix
|
|
| Unresolved product id: SUSE Linux Enterprise Server for SAP Applications 15 SP2:shim-15.8-150100.3.38.1.x86_64 | — |
Vendor Fix
|
Threats
Impact
moderate
4.4 (Medium)
Affected products
Recommended
3 products
| Product | Identifier | Version | Remediation |
|---|---|---|---|
| Unresolved product id: SUSE Linux Enterprise High Performance Computing 15 SP2-LTSS:shim-15.8-150100.3.38.1.x86_64 | — |
Vendor Fix
|
|
| Unresolved product id: SUSE Linux Enterprise Server 15 SP2-LTSS:shim-15.8-150100.3.38.1.x86_64 | — |
Vendor Fix
|
|
| Unresolved product id: SUSE Linux Enterprise Server for SAP Applications 15 SP2:shim-15.8-150100.3.38.1.x86_64 | — |
Vendor Fix
|
Threats
Impact
moderate
4.2 (Medium)
Affected products
Recommended
3 products
| Product | Identifier | Version | Remediation |
|---|---|---|---|
| Unresolved product id: SUSE Linux Enterprise High Performance Computing 15 SP2-LTSS:shim-15.8-150100.3.38.1.x86_64 | — |
Vendor Fix
|
|
| Unresolved product id: SUSE Linux Enterprise Server 15 SP2-LTSS:shim-15.8-150100.3.38.1.x86_64 | — |
Vendor Fix
|
|
| Unresolved product id: SUSE Linux Enterprise Server for SAP Applications 15 SP2:shim-15.8-150100.3.38.1.x86_64 | — |
Vendor Fix
|
Threats
Impact
moderate
4.4 (Medium)
Affected products
Recommended
3 products
| Product | Identifier | Version | Remediation |
|---|---|---|---|
| Unresolved product id: SUSE Linux Enterprise High Performance Computing 15 SP2-LTSS:shim-15.8-150100.3.38.1.x86_64 | — |
Vendor Fix
|
|
| Unresolved product id: SUSE Linux Enterprise Server 15 SP2-LTSS:shim-15.8-150100.3.38.1.x86_64 | — |
Vendor Fix
|
|
| Unresolved product id: SUSE Linux Enterprise Server for SAP Applications 15 SP2:shim-15.8-150100.3.38.1.x86_64 | — |
Vendor Fix
|
Threats
Impact
moderate
References
40 references
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"text": "This update for shim fixes the following issues:\n\n- Update shim-install to set the TPM2 SRK algorithm (bsc#1213945)\n- Limit the requirement of fde-tpm-helper-macros to the distro with\n suse_version 1600 and above (bsc#1219460)\n\nUpdate to version 15.8:\n\nSecurity issues fixed:\n\n- mok: fix LogError() invocation (bsc#1215099,CVE-2023-40546)\n- avoid incorrectly trusting HTTP headers (bsc#1215098,CVE-2023-40547)\n- Fix integer overflow on SBAT section size on 32-bit system (bsc#1215100,CVE-2023-40548)\n- Authenticode: verify that the signature header is in bounds (bsc#1215101,CVE-2023-40549)\n- pe: Fix an out-of-bound read in verify_buffer_sbat() (bsc#1215102,CVE-2023-40550)\n- pe-relocate: Fix bounds check for MZ binaries (bsc#1215103,CVE-2023-40551)\n\n \nThe NX flag is disable which is same as the default value of shim-15.8, hence, not need to enable it by this patch now.\n\n- Generate dbx during build so we don\u0027t include binary files in sources\n- Don\u0027t require grub so shim can still be used with systemd-boot\n- Update shim-install to fix boot failure of ext4 root file system\n on RAID10 (bsc#1205855)\n- Adopt the macros from fde-tpm-helper-macros to update the\n signature in the sealed key after a bootloader upgrade\n\n- Update shim-install to amend full disk encryption support\n - Adopt TPM 2.0 Key File for grub2 TPM 2.0 protector\n - Use the long name to specify the grub2 key protector\n - cryptodisk: support TPM authorized policies\n - Do not use tpm_record_pcrs unless the command is in command.lst\n\n- Removed POST_PROCESS_PE_FLAGS=-N from the build command in shim.spec to\n enable the NX compatibility flag when using post-process-pe after\n discussed with grub2 experts in mail. It\u0027s useful for further development\n and testing. (bsc#1205588)\n",
"title": "Description of the patch"
},
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"text": "SUSE-2024-1461,SUSE-SLE-Product-HPC-15-SP2-LTSS-2024-1461,SUSE-SLE-Product-SLES-15-SP2-LTSS-2024-1461,SUSE-SLE-Product-SLES_SAP-15-SP2-2024-1461",
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"url": "https://lists.suse.com/pipermail/sle-updates/2024-April/035121.html"
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"url": "https://bugzilla.suse.com/1213945"
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"product_reference": "shim-15.8-150100.3.38.1.x86_64",
"relates_to_product_reference": "SUSE Linux Enterprise High Performance Computing 15 SP2-LTSS"
},
{
"category": "default_component_of",
"full_product_name": {
"name": "shim-15.8-150100.3.38.1.x86_64 as component of SUSE Linux Enterprise Server 15 SP2-LTSS",
"product_id": "SUSE Linux Enterprise Server 15 SP2-LTSS:shim-15.8-150100.3.38.1.x86_64"
},
"product_reference": "shim-15.8-150100.3.38.1.x86_64",
"relates_to_product_reference": "SUSE Linux Enterprise Server 15 SP2-LTSS"
},
{
"category": "default_component_of",
"full_product_name": {
"name": "shim-15.8-150100.3.38.1.x86_64 as component of SUSE Linux Enterprise Server for SAP Applications 15 SP2",
"product_id": "SUSE Linux Enterprise Server for SAP Applications 15 SP2:shim-15.8-150100.3.38.1.x86_64"
},
"product_reference": "shim-15.8-150100.3.38.1.x86_64",
"relates_to_product_reference": "SUSE Linux Enterprise Server for SAP Applications 15 SP2"
}
]
},
"vulnerabilities": [
{
"cve": "CVE-2022-28737",
"ids": [
{
"system_name": "SUSE CVE Page",
"text": "https://www.suse.com/security/cve/CVE-2022-28737"
}
],
"notes": [
{
"category": "general",
"text": "There\u0027s a possible overflow in handle_image() when shim tries to load and execute crafted EFI executables; The handle_image() function takes into account the SizeOfRawData field from each section to be loaded. An attacker can leverage this to perform out-of-bound writes into memory. Arbitrary code execution is not discarded in such scenario.",
"title": "CVE description"
}
],
"product_status": {
"recommended": [
"SUSE Linux Enterprise High Performance Computing 15 SP2-LTSS:shim-15.8-150100.3.38.1.x86_64",
"SUSE Linux Enterprise Server 15 SP2-LTSS:shim-15.8-150100.3.38.1.x86_64",
"SUSE Linux Enterprise Server for SAP Applications 15 SP2:shim-15.8-150100.3.38.1.x86_64"
]
},
"references": [
{
"category": "external",
"summary": "CVE-2022-28737",
"url": "https://www.suse.com/security/cve/CVE-2022-28737"
},
{
"category": "external",
"summary": "SUSE Bug 1198458 for CVE-2022-28737",
"url": "https://bugzilla.suse.com/1198458"
},
{
"category": "external",
"summary": "SUSE Bug 1205065 for CVE-2022-28737",
"url": "https://bugzilla.suse.com/1205065"
},
{
"category": "external",
"summary": "SUSE Bug 1205066 for CVE-2022-28737",
"url": "https://bugzilla.suse.com/1205066"
},
{
"category": "external",
"summary": "SUSE Bug 1205831 for CVE-2022-28737",
"url": "https://bugzilla.suse.com/1205831"
}
],
"remediations": [
{
"category": "vendor_fix",
"details": "To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or \"zypper patch\".\n",
"product_ids": [
"SUSE Linux Enterprise High Performance Computing 15 SP2-LTSS:shim-15.8-150100.3.38.1.x86_64",
"SUSE Linux Enterprise Server 15 SP2-LTSS:shim-15.8-150100.3.38.1.x86_64",
"SUSE Linux Enterprise Server for SAP Applications 15 SP2:shim-15.8-150100.3.38.1.x86_64"
]
}
],
"scores": [
{
"cvss_v3": {
"baseScore": 8.4,
"baseSeverity": "HIGH",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
"version": "3.1"
},
"products": [
"SUSE Linux Enterprise High Performance Computing 15 SP2-LTSS:shim-15.8-150100.3.38.1.x86_64",
"SUSE Linux Enterprise Server 15 SP2-LTSS:shim-15.8-150100.3.38.1.x86_64",
"SUSE Linux Enterprise Server for SAP Applications 15 SP2:shim-15.8-150100.3.38.1.x86_64"
]
}
],
"threats": [
{
"category": "impact",
"date": "2024-04-29T11:19:11Z",
"details": "important"
}
],
"title": "CVE-2022-28737"
},
{
"cve": "CVE-2023-40546",
"ids": [
{
"system_name": "SUSE CVE Page",
"text": "https://www.suse.com/security/cve/CVE-2023-40546"
}
],
"notes": [
{
"category": "general",
"text": "A flaw was found in Shim when an error happened while creating a new ESL variable. If Shim fails to create the new variable, it tries to print an error message to the user; however, the number of parameters used by the logging function doesn\u0027t match the format string used by it, leading to a crash under certain circumstances.",
"title": "CVE description"
}
],
"product_status": {
"recommended": [
"SUSE Linux Enterprise High Performance Computing 15 SP2-LTSS:shim-15.8-150100.3.38.1.x86_64",
"SUSE Linux Enterprise Server 15 SP2-LTSS:shim-15.8-150100.3.38.1.x86_64",
"SUSE Linux Enterprise Server for SAP Applications 15 SP2:shim-15.8-150100.3.38.1.x86_64"
]
},
"references": [
{
"category": "external",
"summary": "CVE-2023-40546",
"url": "https://www.suse.com/security/cve/CVE-2023-40546"
},
{
"category": "external",
"summary": "SUSE Bug 1215099 for CVE-2023-40546",
"url": "https://bugzilla.suse.com/1215099"
}
],
"remediations": [
{
"category": "vendor_fix",
"details": "To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or \"zypper patch\".\n",
"product_ids": [
"SUSE Linux Enterprise High Performance Computing 15 SP2-LTSS:shim-15.8-150100.3.38.1.x86_64",
"SUSE Linux Enterprise Server 15 SP2-LTSS:shim-15.8-150100.3.38.1.x86_64",
"SUSE Linux Enterprise Server for SAP Applications 15 SP2:shim-15.8-150100.3.38.1.x86_64"
]
}
],
"scores": [
{
"cvss_v3": {
"baseScore": 4.4,
"baseSeverity": "MEDIUM",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H",
"version": "3.1"
},
"products": [
"SUSE Linux Enterprise High Performance Computing 15 SP2-LTSS:shim-15.8-150100.3.38.1.x86_64",
"SUSE Linux Enterprise Server 15 SP2-LTSS:shim-15.8-150100.3.38.1.x86_64",
"SUSE Linux Enterprise Server for SAP Applications 15 SP2:shim-15.8-150100.3.38.1.x86_64"
]
}
],
"threats": [
{
"category": "impact",
"date": "2024-04-29T11:19:11Z",
"details": "moderate"
}
],
"title": "CVE-2023-40546"
},
{
"cve": "CVE-2023-40547",
"ids": [
{
"system_name": "SUSE CVE Page",
"text": "https://www.suse.com/security/cve/CVE-2023-40547"
}
],
"notes": [
{
"category": "general",
"text": "A remote code execution vulnerability was found in Shim. The Shim boot support trusts attacker-controlled values when parsing an HTTP response. This flaw allows an attacker to craft a specific malicious HTTP request, leading to a completely controlled out-of-bounds write primitive and complete system compromise. This flaw is only exploitable during the early boot phase, an attacker needs to perform a Man-in-the-Middle or compromise the boot server to be able to exploit this vulnerability successfully.",
"title": "CVE description"
}
],
"product_status": {
"recommended": [
"SUSE Linux Enterprise High Performance Computing 15 SP2-LTSS:shim-15.8-150100.3.38.1.x86_64",
"SUSE Linux Enterprise Server 15 SP2-LTSS:shim-15.8-150100.3.38.1.x86_64",
"SUSE Linux Enterprise Server for SAP Applications 15 SP2:shim-15.8-150100.3.38.1.x86_64"
]
},
"references": [
{
"category": "external",
"summary": "CVE-2023-40547",
"url": "https://www.suse.com/security/cve/CVE-2023-40547"
},
{
"category": "external",
"summary": "SUSE Bug 1215098 for CVE-2023-40547",
"url": "https://bugzilla.suse.com/1215098"
}
],
"remediations": [
{
"category": "vendor_fix",
"details": "To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or \"zypper patch\".\n",
"product_ids": [
"SUSE Linux Enterprise High Performance Computing 15 SP2-LTSS:shim-15.8-150100.3.38.1.x86_64",
"SUSE Linux Enterprise Server 15 SP2-LTSS:shim-15.8-150100.3.38.1.x86_64",
"SUSE Linux Enterprise Server for SAP Applications 15 SP2:shim-15.8-150100.3.38.1.x86_64"
]
}
],
"scores": [
{
"cvss_v3": {
"baseScore": 7.1,
"baseSeverity": "HIGH",
"vectorString": "CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:H",
"version": "3.1"
},
"products": [
"SUSE Linux Enterprise High Performance Computing 15 SP2-LTSS:shim-15.8-150100.3.38.1.x86_64",
"SUSE Linux Enterprise Server 15 SP2-LTSS:shim-15.8-150100.3.38.1.x86_64",
"SUSE Linux Enterprise Server for SAP Applications 15 SP2:shim-15.8-150100.3.38.1.x86_64"
]
}
],
"threats": [
{
"category": "impact",
"date": "2024-04-29T11:19:11Z",
"details": "important"
}
],
"title": "CVE-2023-40547"
},
{
"cve": "CVE-2023-40548",
"ids": [
{
"system_name": "SUSE CVE Page",
"text": "https://www.suse.com/security/cve/CVE-2023-40548"
}
],
"notes": [
{
"category": "general",
"text": "A buffer overflow was found in Shim in the 32-bit system. The overflow happens due to an addition operation involving a user-controlled value parsed from the PE binary being used by Shim. This value is further used for memory allocation operations, leading to a heap-based buffer overflow. This flaw causes memory corruption and can lead to a crash or data integrity issues during the boot phase.",
"title": "CVE description"
}
],
"product_status": {
"recommended": [
"SUSE Linux Enterprise High Performance Computing 15 SP2-LTSS:shim-15.8-150100.3.38.1.x86_64",
"SUSE Linux Enterprise Server 15 SP2-LTSS:shim-15.8-150100.3.38.1.x86_64",
"SUSE Linux Enterprise Server for SAP Applications 15 SP2:shim-15.8-150100.3.38.1.x86_64"
]
},
"references": [
{
"category": "external",
"summary": "CVE-2023-40548",
"url": "https://www.suse.com/security/cve/CVE-2023-40548"
},
{
"category": "external",
"summary": "SUSE Bug 1215100 for CVE-2023-40548",
"url": "https://bugzilla.suse.com/1215100"
}
],
"remediations": [
{
"category": "vendor_fix",
"details": "To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or \"zypper patch\".\n",
"product_ids": [
"SUSE Linux Enterprise High Performance Computing 15 SP2-LTSS:shim-15.8-150100.3.38.1.x86_64",
"SUSE Linux Enterprise Server 15 SP2-LTSS:shim-15.8-150100.3.38.1.x86_64",
"SUSE Linux Enterprise Server for SAP Applications 15 SP2:shim-15.8-150100.3.38.1.x86_64"
]
}
],
"scores": [
{
"cvss_v3": {
"baseScore": 6.7,
"baseSeverity": "MEDIUM",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H",
"version": "3.1"
},
"products": [
"SUSE Linux Enterprise High Performance Computing 15 SP2-LTSS:shim-15.8-150100.3.38.1.x86_64",
"SUSE Linux Enterprise Server 15 SP2-LTSS:shim-15.8-150100.3.38.1.x86_64",
"SUSE Linux Enterprise Server for SAP Applications 15 SP2:shim-15.8-150100.3.38.1.x86_64"
]
}
],
"threats": [
{
"category": "impact",
"date": "2024-04-29T11:19:11Z",
"details": "moderate"
}
],
"title": "CVE-2023-40548"
},
{
"cve": "CVE-2023-40549",
"ids": [
{
"system_name": "SUSE CVE Page",
"text": "https://www.suse.com/security/cve/CVE-2023-40549"
}
],
"notes": [
{
"category": "general",
"text": "An out-of-bounds read flaw was found in Shim due to the lack of proper boundary verification during the load of a PE binary. This flaw allows an attacker to load a crafted PE binary, triggering the issue and crashing Shim, resulting in a denial of service.",
"title": "CVE description"
}
],
"product_status": {
"recommended": [
"SUSE Linux Enterprise High Performance Computing 15 SP2-LTSS:shim-15.8-150100.3.38.1.x86_64",
"SUSE Linux Enterprise Server 15 SP2-LTSS:shim-15.8-150100.3.38.1.x86_64",
"SUSE Linux Enterprise Server for SAP Applications 15 SP2:shim-15.8-150100.3.38.1.x86_64"
]
},
"references": [
{
"category": "external",
"summary": "CVE-2023-40549",
"url": "https://www.suse.com/security/cve/CVE-2023-40549"
},
{
"category": "external",
"summary": "SUSE Bug 1215101 for CVE-2023-40549",
"url": "https://bugzilla.suse.com/1215101"
}
],
"remediations": [
{
"category": "vendor_fix",
"details": "To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or \"zypper patch\".\n",
"product_ids": [
"SUSE Linux Enterprise High Performance Computing 15 SP2-LTSS:shim-15.8-150100.3.38.1.x86_64",
"SUSE Linux Enterprise Server 15 SP2-LTSS:shim-15.8-150100.3.38.1.x86_64",
"SUSE Linux Enterprise Server for SAP Applications 15 SP2:shim-15.8-150100.3.38.1.x86_64"
]
}
],
"scores": [
{
"cvss_v3": {
"baseScore": 4.4,
"baseSeverity": "MEDIUM",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H",
"version": "3.1"
},
"products": [
"SUSE Linux Enterprise High Performance Computing 15 SP2-LTSS:shim-15.8-150100.3.38.1.x86_64",
"SUSE Linux Enterprise Server 15 SP2-LTSS:shim-15.8-150100.3.38.1.x86_64",
"SUSE Linux Enterprise Server for SAP Applications 15 SP2:shim-15.8-150100.3.38.1.x86_64"
]
}
],
"threats": [
{
"category": "impact",
"date": "2024-04-29T11:19:11Z",
"details": "moderate"
}
],
"title": "CVE-2023-40549"
},
{
"cve": "CVE-2023-40550",
"ids": [
{
"system_name": "SUSE CVE Page",
"text": "https://www.suse.com/security/cve/CVE-2023-40550"
}
],
"notes": [
{
"category": "general",
"text": "An out-of-bounds read flaw was found in Shim when it tried to validate the SBAT information. This issue may expose sensitive data during the system\u0027s boot phase.",
"title": "CVE description"
}
],
"product_status": {
"recommended": [
"SUSE Linux Enterprise High Performance Computing 15 SP2-LTSS:shim-15.8-150100.3.38.1.x86_64",
"SUSE Linux Enterprise Server 15 SP2-LTSS:shim-15.8-150100.3.38.1.x86_64",
"SUSE Linux Enterprise Server for SAP Applications 15 SP2:shim-15.8-150100.3.38.1.x86_64"
]
},
"references": [
{
"category": "external",
"summary": "CVE-2023-40550",
"url": "https://www.suse.com/security/cve/CVE-2023-40550"
},
{
"category": "external",
"summary": "SUSE Bug 1215102 for CVE-2023-40550",
"url": "https://bugzilla.suse.com/1215102"
}
],
"remediations": [
{
"category": "vendor_fix",
"details": "To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or \"zypper patch\".\n",
"product_ids": [
"SUSE Linux Enterprise High Performance Computing 15 SP2-LTSS:shim-15.8-150100.3.38.1.x86_64",
"SUSE Linux Enterprise Server 15 SP2-LTSS:shim-15.8-150100.3.38.1.x86_64",
"SUSE Linux Enterprise Server for SAP Applications 15 SP2:shim-15.8-150100.3.38.1.x86_64"
]
}
],
"scores": [
{
"cvss_v3": {
"baseScore": 4.2,
"baseSeverity": "MEDIUM",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:H/UI:R/S:U/C:N/I:N/A:H",
"version": "3.1"
},
"products": [
"SUSE Linux Enterprise High Performance Computing 15 SP2-LTSS:shim-15.8-150100.3.38.1.x86_64",
"SUSE Linux Enterprise Server 15 SP2-LTSS:shim-15.8-150100.3.38.1.x86_64",
"SUSE Linux Enterprise Server for SAP Applications 15 SP2:shim-15.8-150100.3.38.1.x86_64"
]
}
],
"threats": [
{
"category": "impact",
"date": "2024-04-29T11:19:11Z",
"details": "moderate"
}
],
"title": "CVE-2023-40550"
},
{
"cve": "CVE-2023-40551",
"ids": [
{
"system_name": "SUSE CVE Page",
"text": "https://www.suse.com/security/cve/CVE-2023-40551"
}
],
"notes": [
{
"category": "general",
"text": "A flaw was found in the MZ binary format in Shim. An out-of-bounds read may occur, leading to a crash or possible exposure of sensitive data during the system\u0027s boot phase.",
"title": "CVE description"
}
],
"product_status": {
"recommended": [
"SUSE Linux Enterprise High Performance Computing 15 SP2-LTSS:shim-15.8-150100.3.38.1.x86_64",
"SUSE Linux Enterprise Server 15 SP2-LTSS:shim-15.8-150100.3.38.1.x86_64",
"SUSE Linux Enterprise Server for SAP Applications 15 SP2:shim-15.8-150100.3.38.1.x86_64"
]
},
"references": [
{
"category": "external",
"summary": "CVE-2023-40551",
"url": "https://www.suse.com/security/cve/CVE-2023-40551"
},
{
"category": "external",
"summary": "SUSE Bug 1215103 for CVE-2023-40551",
"url": "https://bugzilla.suse.com/1215103"
}
],
"remediations": [
{
"category": "vendor_fix",
"details": "To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or \"zypper patch\".\n",
"product_ids": [
"SUSE Linux Enterprise High Performance Computing 15 SP2-LTSS:shim-15.8-150100.3.38.1.x86_64",
"SUSE Linux Enterprise Server 15 SP2-LTSS:shim-15.8-150100.3.38.1.x86_64",
"SUSE Linux Enterprise Server for SAP Applications 15 SP2:shim-15.8-150100.3.38.1.x86_64"
]
}
],
"scores": [
{
"cvss_v3": {
"baseScore": 4.4,
"baseSeverity": "MEDIUM",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H",
"version": "3.1"
},
"products": [
"SUSE Linux Enterprise High Performance Computing 15 SP2-LTSS:shim-15.8-150100.3.38.1.x86_64",
"SUSE Linux Enterprise Server 15 SP2-LTSS:shim-15.8-150100.3.38.1.x86_64",
"SUSE Linux Enterprise Server for SAP Applications 15 SP2:shim-15.8-150100.3.38.1.x86_64"
]
}
],
"threats": [
{
"category": "impact",
"date": "2024-04-29T11:19:11Z",
"details": "moderate"
}
],
"title": "CVE-2023-40551"
}
]
}
Loading…
Trend slope:
-
(linear fit over daily sighting counts)
Show additional events:
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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