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CVE-2019-11091 (GCVE-0-2019-11091)
Vulnerability from cvelistv5 – Published: 2019-05-30 15:28 – Updated: 2026-05-28 18:17
VLAI
EPSS
Summary
Microarchitectural Data Sampling Uncacheable Memory (MDSUM): Uncacheable memory on some microprocessors utilizing speculative execution may allow an authenticated user to potentially enable information disclosure via a side channel with local access. A list of impacted products can be found here: https://www.intel.com/content/dam/www/public/us/en/documents/corporate-information/SA00233-microcode-update-guidance_05132019.pdf
Severity
5.6 (Medium)
CWE
- Information Disclosure
Assigner
References
22 references
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Intel Corporation | Central Processing Units (CPUs) |
Affected:
A list of impacted products can be found here: https://www.intel.com/content/dam/www/public/us/en/documents/corporate-information/SA00233-microcode-update-guidance_05132019.pdf
|
Date Public
2019-05-14 00:00
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RHSA-2019:1198
Vulnerability from csaf_redhat - Published: 2019-05-14 19:53 - Updated: 2026-05-28 20:36Summary
Red Hat Security Advisory: qemu-kvm security update
Severity
Important
Notes
Topic: An update for qemu-kvm is now available for Red Hat Enterprise Linux 6.5 Advanced 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: Kernel-based Virtual Machine (KVM) is a full virtualization solution for Linux on a variety of architectures. The qemu-kvm packages provide the user-space component for running virtual machines that use KVM.
Security Fix(es):
* A flaw was found in the implementation of the "fill buffer", a mechanism used by modern CPUs when a cache-miss is made on L1 CPU cache. If an attacker can generate a load operation that would create a page fault, the execution will continue speculatively with incorrect data from the fill buffer while the data is fetched from higher level caches. This response time can be measured to infer data in the fill buffer. (CVE-2018-12130)
* Modern Intel microprocessors implement hardware-level micro-optimizations to improve the performance of writing data back to CPU caches. The write operation is split into STA (STore Address) and STD (STore Data) sub-operations. These sub-operations allow the processor to hand-off address generation logic into these sub-operations for optimized writes. Both of these sub-operations write to a shared distributed processor structure called the 'processor store buffer'. As a result, an unprivileged attacker could use this flaw to read private data resident within the CPU's processor store buffer. (CVE-2018-12126)
* Microprocessors use a ‘load port’ subcomponent to perform load operations from memory or IO. During a load operation, the load port receives data from the memory or IO subsystem and then provides the data to the CPU registers and operations in the CPU’s pipelines. Stale load operations results are stored in the 'load port' table until overwritten by newer operations. Certain load-port operations triggered by an attacker can be used to reveal data about previous stale requests leaking data back to the attacker via a timing side-channel. (CVE-2018-12127)
* Uncacheable memory on some microprocessors utilizing speculative execution may allow an authenticated user to potentially enable information disclosure via a side channel with local access. (CVE-2019-11091)
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.
Modern Intel microprocessors implement hardware-level micro-optimizations to improve the performance of writing data back to CPU caches. The write operation is split into STA (STore Address) and STD (STore Data) sub-operations. These sub-operations allow the processor to hand-off address generation logic into these sub-operations for optimized writes. Both of these sub-operations write to a shared distributed processor structure called the 'processor store buffer'. As a result, an unprivileged attacker could use this flaw to read private data resident within the CPU's processor store buffer.
6.5 (Medium)
Affected products
Fixed
6 products
| Product | Identifier | Version | Remediation |
|---|---|---|---|
| Unresolved product id: 6Server-6.5.AUS:qemu-guest-agent-2:0.12.1.2-2.415.el6_5.20.x86_64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: 6Server-6.5.AUS:qemu-img-2:0.12.1.2-2.415.el6_5.20.x86_64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: 6Server-6.5.AUS:qemu-kvm-2:0.12.1.2-2.415.el6_5.20.src | — |
Vendor Fix
fix
|
|
| Unresolved product id: 6Server-6.5.AUS:qemu-kvm-2:0.12.1.2-2.415.el6_5.20.x86_64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: 6Server-6.5.AUS:qemu-kvm-debuginfo-2:0.12.1.2-2.415.el6_5.20.x86_64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: 6Server-6.5.AUS:qemu-kvm-tools-2:0.12.1.2-2.415.el6_5.20.x86_64 | — |
Vendor Fix
fix
|
Threats
Impact
Moderate
Microprocessors use a ‘load port’ subcomponent to perform load operations from memory or IO. During a load operation, the load port receives data from the memory or IO subsystem and then provides the data to the CPU registers and operations in the CPU’s pipelines. Stale load operations results are stored in the 'load port' table until overwritten by newer operations. Certain load-port operations triggered by an attacker can be used to reveal data about previous stale requests leaking data back to the attacker via a timing side-channel.
6.5 (Medium)
Affected products
Fixed
6 products
| Product | Identifier | Version | Remediation |
|---|---|---|---|
| Unresolved product id: 6Server-6.5.AUS:qemu-guest-agent-2:0.12.1.2-2.415.el6_5.20.x86_64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: 6Server-6.5.AUS:qemu-img-2:0.12.1.2-2.415.el6_5.20.x86_64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: 6Server-6.5.AUS:qemu-kvm-2:0.12.1.2-2.415.el6_5.20.src | — |
Vendor Fix
fix
|
|
| Unresolved product id: 6Server-6.5.AUS:qemu-kvm-2:0.12.1.2-2.415.el6_5.20.x86_64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: 6Server-6.5.AUS:qemu-kvm-debuginfo-2:0.12.1.2-2.415.el6_5.20.x86_64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: 6Server-6.5.AUS:qemu-kvm-tools-2:0.12.1.2-2.415.el6_5.20.x86_64 | — |
Vendor Fix
fix
|
Threats
Impact
Moderate
A flaw was found in the implementation of the "fill buffer", a mechanism used by modern CPUs when a cache-miss is made on L1 CPU cache. If an attacker can generate a load operation that would create a page fault, the execution will continue speculatively with incorrect data from the fill buffer while the data is fetched from higher level caches. This response time can be measured to infer data in the fill buffer.
6.2 (Medium)
Affected products
Fixed
6 products
| Product | Identifier | Version | Remediation |
|---|---|---|---|
| Unresolved product id: 6Server-6.5.AUS:qemu-guest-agent-2:0.12.1.2-2.415.el6_5.20.x86_64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: 6Server-6.5.AUS:qemu-img-2:0.12.1.2-2.415.el6_5.20.x86_64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: 6Server-6.5.AUS:qemu-kvm-2:0.12.1.2-2.415.el6_5.20.src | — |
Vendor Fix
fix
|
|
| Unresolved product id: 6Server-6.5.AUS:qemu-kvm-2:0.12.1.2-2.415.el6_5.20.x86_64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: 6Server-6.5.AUS:qemu-kvm-debuginfo-2:0.12.1.2-2.415.el6_5.20.x86_64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: 6Server-6.5.AUS:qemu-kvm-tools-2:0.12.1.2-2.415.el6_5.20.x86_64 | — |
Vendor Fix
fix
|
Threats
Impact
Important
Uncacheable memory on some microprocessors utilizing speculative execution may allow an authenticated user to potentially enable information disclosure via a side channel with local access.
CWE-515 - Covert Storage ChannelAffected products
Fixed
6 products
| Product | Identifier | Version | Remediation |
|---|---|---|---|
| Unresolved product id: 6Server-6.5.AUS:qemu-guest-agent-2:0.12.1.2-2.415.el6_5.20.x86_64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: 6Server-6.5.AUS:qemu-img-2:0.12.1.2-2.415.el6_5.20.x86_64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: 6Server-6.5.AUS:qemu-kvm-2:0.12.1.2-2.415.el6_5.20.src | — |
Vendor Fix
fix
|
|
| Unresolved product id: 6Server-6.5.AUS:qemu-kvm-2:0.12.1.2-2.415.el6_5.20.x86_64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: 6Server-6.5.AUS:qemu-kvm-debuginfo-2:0.12.1.2-2.415.el6_5.20.x86_64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: 6Server-6.5.AUS:qemu-kvm-tools-2:0.12.1.2-2.415.el6_5.20.x86_64 | — |
Vendor Fix
fix
|
Threats
Impact
Moderate
References
26 references
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}
],
"title": "hardware: Microarchitectural Fill Buffer Data Sampling (MFBDS)"
},
{
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"cwe": {
"id": "CWE-515",
"name": "Covert Storage Channel"
},
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],
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],
"release_date": "2019-05-14T17:00:00+00:00",
"remediations": [
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"date": "2019-05-14T19:53:49+00:00",
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RHSA-2019:1199
Vulnerability from csaf_redhat - Published: 2019-05-14 20:44 - Updated: 2026-05-28 20:36Summary
Red Hat Security Advisory: qemu-kvm-rhev security update
Severity
Important
Notes
Topic: An update for qemu-kvm-rhev is now available for Red Hat OpenStack Platform 9.0 (Mitaka).
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: KVM (Kernel-based Virtual Machine) is a full virtualization solution for Linux on a variety of architectures. The qemu-kvm-rhev packages provide the user-space component for running virtual machines that use KVM in environments managed by Red Hat products.
Security Fix(es):
* A flaw was found in the implementation of the "fill buffer", a mechanism used by modern CPUs when a cache-miss is made on L1 CPU cache. If an attacker can generate a load operation that would create a page fault, the execution will continue speculatively with incorrect data from the fill buffer while the data is fetched from higher level caches. This response time can be measured to infer data in the fill buffer. (CVE-2018-12130)
* Modern Intel microprocessors implement hardware-level micro-optimizations to improve the performance of writing data back to CPU caches. The write operation is split into STA (STore Address) and STD (STore Data) sub-operations. These sub-operations allow the processor to hand-off address generation logic into these sub-operations for optimized writes. Both of these sub-operations write to a shared distributed processor structure called the 'processor store buffer'. As a result, an unprivileged attacker could use this flaw to read private data resident within the CPU's processor store buffer. (CVE-2018-12126)
* Microprocessors use a ‘load port’ subcomponent to perform load operations from memory or IO. During a load operation, the load port receives data from the memory or IO subsystem and then provides the data to the CPU registers and operations in the CPU’s pipelines. Stale load operations results are stored in the 'load port' table until overwritten by newer operations. Certain load-port operations triggered by an attacker can be used to reveal data about previous stale requests leaking data back to the attacker via a timing side-channel. (CVE-2018-12127)
* Uncacheable memory on some microprocessors utilizing speculative execution may allow an authenticated user to potentially enable information disclosure via a side channel with local access. (CVE-2019-11091)
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.
Modern Intel microprocessors implement hardware-level micro-optimizations to improve the performance of writing data back to CPU caches. The write operation is split into STA (STore Address) and STD (STore Data) sub-operations. These sub-operations allow the processor to hand-off address generation logic into these sub-operations for optimized writes. Both of these sub-operations write to a shared distributed processor structure called the 'processor store buffer'. As a result, an unprivileged attacker could use this flaw to read private data resident within the CPU's processor store buffer.
6.5 (Medium)
Affected products
Fixed
6 products
| Product | Identifier | Version | Remediation |
|---|---|---|---|
| Unresolved product id: 7Server-RH7-RHOS-9.0:qemu-img-rhev-10:2.12.0-18.el7_6.5.x86_64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-RH7-RHOS-9.0:qemu-kvm-common-rhev-10:2.12.0-18.el7_6.5.x86_64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-RH7-RHOS-9.0:qemu-kvm-rhev-10:2.12.0-18.el7_6.5.src | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-RH7-RHOS-9.0:qemu-kvm-rhev-10:2.12.0-18.el7_6.5.x86_64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-RH7-RHOS-9.0:qemu-kvm-rhev-debuginfo-10:2.12.0-18.el7_6.5.x86_64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-RH7-RHOS-9.0:qemu-kvm-tools-rhev-10:2.12.0-18.el7_6.5.x86_64 | — |
Vendor Fix
fix
|
Threats
Impact
Moderate
Microprocessors use a ‘load port’ subcomponent to perform load operations from memory or IO. During a load operation, the load port receives data from the memory or IO subsystem and then provides the data to the CPU registers and operations in the CPU’s pipelines. Stale load operations results are stored in the 'load port' table until overwritten by newer operations. Certain load-port operations triggered by an attacker can be used to reveal data about previous stale requests leaking data back to the attacker via a timing side-channel.
6.5 (Medium)
Affected products
Fixed
6 products
| Product | Identifier | Version | Remediation |
|---|---|---|---|
| Unresolved product id: 7Server-RH7-RHOS-9.0:qemu-img-rhev-10:2.12.0-18.el7_6.5.x86_64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-RH7-RHOS-9.0:qemu-kvm-common-rhev-10:2.12.0-18.el7_6.5.x86_64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-RH7-RHOS-9.0:qemu-kvm-rhev-10:2.12.0-18.el7_6.5.src | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-RH7-RHOS-9.0:qemu-kvm-rhev-10:2.12.0-18.el7_6.5.x86_64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-RH7-RHOS-9.0:qemu-kvm-rhev-debuginfo-10:2.12.0-18.el7_6.5.x86_64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-RH7-RHOS-9.0:qemu-kvm-tools-rhev-10:2.12.0-18.el7_6.5.x86_64 | — |
Vendor Fix
fix
|
Threats
Impact
Moderate
A flaw was found in the implementation of the "fill buffer", a mechanism used by modern CPUs when a cache-miss is made on L1 CPU cache. If an attacker can generate a load operation that would create a page fault, the execution will continue speculatively with incorrect data from the fill buffer while the data is fetched from higher level caches. This response time can be measured to infer data in the fill buffer.
6.2 (Medium)
Affected products
Fixed
6 products
| Product | Identifier | Version | Remediation |
|---|---|---|---|
| Unresolved product id: 7Server-RH7-RHOS-9.0:qemu-img-rhev-10:2.12.0-18.el7_6.5.x86_64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-RH7-RHOS-9.0:qemu-kvm-common-rhev-10:2.12.0-18.el7_6.5.x86_64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-RH7-RHOS-9.0:qemu-kvm-rhev-10:2.12.0-18.el7_6.5.src | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-RH7-RHOS-9.0:qemu-kvm-rhev-10:2.12.0-18.el7_6.5.x86_64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-RH7-RHOS-9.0:qemu-kvm-rhev-debuginfo-10:2.12.0-18.el7_6.5.x86_64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-RH7-RHOS-9.0:qemu-kvm-tools-rhev-10:2.12.0-18.el7_6.5.x86_64 | — |
Vendor Fix
fix
|
Threats
Impact
Important
Uncacheable memory on some microprocessors utilizing speculative execution may allow an authenticated user to potentially enable information disclosure via a side channel with local access.
CWE-515 - Covert Storage ChannelAffected products
Fixed
6 products
| Product | Identifier | Version | Remediation |
|---|---|---|---|
| Unresolved product id: 7Server-RH7-RHOS-9.0:qemu-img-rhev-10:2.12.0-18.el7_6.5.x86_64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-RH7-RHOS-9.0:qemu-kvm-common-rhev-10:2.12.0-18.el7_6.5.x86_64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-RH7-RHOS-9.0:qemu-kvm-rhev-10:2.12.0-18.el7_6.5.src | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-RH7-RHOS-9.0:qemu-kvm-rhev-10:2.12.0-18.el7_6.5.x86_64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-RH7-RHOS-9.0:qemu-kvm-rhev-debuginfo-10:2.12.0-18.el7_6.5.x86_64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-RH7-RHOS-9.0:qemu-kvm-tools-rhev-10:2.12.0-18.el7_6.5.x86_64 | — |
Vendor Fix
fix
|
Threats
Impact
Moderate
References
26 references
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"name": "Covert Storage Channel"
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"discovery_date": "2018-11-06T00:00:00+00:00",
"ids": [
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"notes": [
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"text": "Uncacheable memory on some microprocessors utilizing speculative execution may allow an authenticated user to potentially enable information disclosure via a side channel with local access.",
"title": "Vulnerability description"
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{
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{
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],
"release_date": "2019-05-14T17:00:00+00:00",
"remediations": [
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"date": "2019-05-14T20:44:42+00:00",
"details": "For details on how to apply this update, which includes the changes described in this advisory, refer to:\n\nhttps://access.redhat.com/articles/11258\n\nAfter installing this update, shut down all running virtual machines. Once all virtual machines have shut down, start them again for this update to take effect.",
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RHSA-2019:1200
Vulnerability from csaf_redhat - Published: 2019-05-14 20:45 - Updated: 2026-05-28 20:36Summary
Red Hat Security Advisory: qemu-kvm-rhev security update
Severity
Important
Notes
Topic: An update for qemu-kvm-rhev is now available for Red Hat OpenStack Platform 10.0 (Newton).
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: KVM (Kernel-based Virtual Machine) is a full virtualization solution for Linux on a variety of architectures. The qemu-kvm-rhev packages provide the user-space component for running virtual machines that use KVM in environments managed by Red Hat products.
Security Fix(es):
* A flaw was found in the implementation of the "fill buffer", a mechanism used by modern CPUs when a cache-miss is made on L1 CPU cache. If an attacker can generate a load operation that would create a page fault, the execution will continue speculatively with incorrect data from the fill buffer while the data is fetched from higher level caches. This response time can be measured to infer data in the fill buffer. (CVE-2018-12130)
* Modern Intel microprocessors implement hardware-level micro-optimizations to improve the performance of writing data back to CPU caches. The write operation is split into STA (STore Address) and STD (STore Data) sub-operations. These sub-operations allow the processor to hand-off address generation logic into these sub-operations for optimized writes. Both of these sub-operations write to a shared distributed processor structure called the 'processor store buffer'. As a result, an unprivileged attacker could use this flaw to read private data resident within the CPU's processor store buffer. (CVE-2018-12126)
* Microprocessors use a ‘load port’ subcomponent to perform load operations from memory or IO. During a load operation, the load port receives data from the memory or IO subsystem and then provides the data to the CPU registers and operations in the CPU’s pipelines. Stale load operations results are stored in the 'load port' table until overwritten by newer operations. Certain load-port operations triggered by an attacker can be used to reveal data about previous stale requests leaking data back to the attacker via a timing side-channel. (CVE-2018-12127)
* Uncacheable memory on some microprocessors utilizing speculative execution may allow an authenticated user to potentially enable information disclosure via a side channel with local access. (CVE-2019-11091)
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.
Modern Intel microprocessors implement hardware-level micro-optimizations to improve the performance of writing data back to CPU caches. The write operation is split into STA (STore Address) and STD (STore Data) sub-operations. These sub-operations allow the processor to hand-off address generation logic into these sub-operations for optimized writes. Both of these sub-operations write to a shared distributed processor structure called the 'processor store buffer'. As a result, an unprivileged attacker could use this flaw to read private data resident within the CPU's processor store buffer.
6.5 (Medium)
Affected products
Fixed
6 products
| Product | Identifier | Version | Remediation |
|---|---|---|---|
| Unresolved product id: 7Server-RH7-RHOS-10.0:qemu-img-rhev-10:2.12.0-18.el7_6.5.x86_64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-RH7-RHOS-10.0:qemu-kvm-common-rhev-10:2.12.0-18.el7_6.5.x86_64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-RH7-RHOS-10.0:qemu-kvm-rhev-10:2.12.0-18.el7_6.5.src | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-RH7-RHOS-10.0:qemu-kvm-rhev-10:2.12.0-18.el7_6.5.x86_64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-RH7-RHOS-10.0:qemu-kvm-rhev-debuginfo-10:2.12.0-18.el7_6.5.x86_64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-RH7-RHOS-10.0:qemu-kvm-tools-rhev-10:2.12.0-18.el7_6.5.x86_64 | — |
Vendor Fix
fix
|
Threats
Impact
Moderate
Microprocessors use a ‘load port’ subcomponent to perform load operations from memory or IO. During a load operation, the load port receives data from the memory or IO subsystem and then provides the data to the CPU registers and operations in the CPU’s pipelines. Stale load operations results are stored in the 'load port' table until overwritten by newer operations. Certain load-port operations triggered by an attacker can be used to reveal data about previous stale requests leaking data back to the attacker via a timing side-channel.
6.5 (Medium)
Affected products
Fixed
6 products
| Product | Identifier | Version | Remediation |
|---|---|---|---|
| Unresolved product id: 7Server-RH7-RHOS-10.0:qemu-img-rhev-10:2.12.0-18.el7_6.5.x86_64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-RH7-RHOS-10.0:qemu-kvm-common-rhev-10:2.12.0-18.el7_6.5.x86_64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-RH7-RHOS-10.0:qemu-kvm-rhev-10:2.12.0-18.el7_6.5.src | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-RH7-RHOS-10.0:qemu-kvm-rhev-10:2.12.0-18.el7_6.5.x86_64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-RH7-RHOS-10.0:qemu-kvm-rhev-debuginfo-10:2.12.0-18.el7_6.5.x86_64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-RH7-RHOS-10.0:qemu-kvm-tools-rhev-10:2.12.0-18.el7_6.5.x86_64 | — |
Vendor Fix
fix
|
Threats
Impact
Moderate
A flaw was found in the implementation of the "fill buffer", a mechanism used by modern CPUs when a cache-miss is made on L1 CPU cache. If an attacker can generate a load operation that would create a page fault, the execution will continue speculatively with incorrect data from the fill buffer while the data is fetched from higher level caches. This response time can be measured to infer data in the fill buffer.
6.2 (Medium)
Affected products
Fixed
6 products
| Product | Identifier | Version | Remediation |
|---|---|---|---|
| Unresolved product id: 7Server-RH7-RHOS-10.0:qemu-img-rhev-10:2.12.0-18.el7_6.5.x86_64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-RH7-RHOS-10.0:qemu-kvm-common-rhev-10:2.12.0-18.el7_6.5.x86_64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-RH7-RHOS-10.0:qemu-kvm-rhev-10:2.12.0-18.el7_6.5.src | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-RH7-RHOS-10.0:qemu-kvm-rhev-10:2.12.0-18.el7_6.5.x86_64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-RH7-RHOS-10.0:qemu-kvm-rhev-debuginfo-10:2.12.0-18.el7_6.5.x86_64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-RH7-RHOS-10.0:qemu-kvm-tools-rhev-10:2.12.0-18.el7_6.5.x86_64 | — |
Vendor Fix
fix
|
Threats
Impact
Important
Uncacheable memory on some microprocessors utilizing speculative execution may allow an authenticated user to potentially enable information disclosure via a side channel with local access.
CWE-515 - Covert Storage ChannelAffected products
Fixed
6 products
| Product | Identifier | Version | Remediation |
|---|---|---|---|
| Unresolved product id: 7Server-RH7-RHOS-10.0:qemu-img-rhev-10:2.12.0-18.el7_6.5.x86_64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-RH7-RHOS-10.0:qemu-kvm-common-rhev-10:2.12.0-18.el7_6.5.x86_64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-RH7-RHOS-10.0:qemu-kvm-rhev-10:2.12.0-18.el7_6.5.src | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-RH7-RHOS-10.0:qemu-kvm-rhev-10:2.12.0-18.el7_6.5.x86_64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-RH7-RHOS-10.0:qemu-kvm-rhev-debuginfo-10:2.12.0-18.el7_6.5.x86_64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-RH7-RHOS-10.0:qemu-kvm-tools-rhev-10:2.12.0-18.el7_6.5.x86_64 | — |
Vendor Fix
fix
|
Threats
Impact
Moderate
References
26 references
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"7Server-RH7-RHOS-10.0:qemu-kvm-common-rhev-10:2.12.0-18.el7_6.5.x86_64",
"7Server-RH7-RHOS-10.0:qemu-kvm-rhev-10:2.12.0-18.el7_6.5.src",
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"7Server-RH7-RHOS-10.0:qemu-kvm-tools-rhev-10:2.12.0-18.el7_6.5.x86_64"
]
},
"references": [
{
"category": "self",
"summary": "Canonical URL",
"url": "https://access.redhat.com/security/cve/CVE-2019-11091"
},
{
"category": "external",
"summary": "RHBZ#1705312",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=1705312"
},
{
"category": "external",
"summary": "RHSB-mds",
"url": "https://access.redhat.com/security/vulnerabilities/mds"
},
{
"category": "external",
"summary": "https://www.cve.org/CVERecord?id=CVE-2019-11091",
"url": "https://www.cve.org/CVERecord?id=CVE-2019-11091"
},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2019-11091",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2019-11091"
}
],
"release_date": "2019-05-14T17:00:00+00:00",
"remediations": [
{
"category": "vendor_fix",
"date": "2019-05-14T20:45:08+00:00",
"details": "For details on how to apply this update, which includes the changes described in this advisory, refer to:\n\nhttps://access.redhat.com/articles/11258\n\nAfter installing this update, shut down all running virtual machines. Once all virtual machines have shut down, start them again for this update to take effect.",
"product_ids": [
"7Server-RH7-RHOS-10.0:qemu-img-rhev-10:2.12.0-18.el7_6.5.x86_64",
"7Server-RH7-RHOS-10.0:qemu-kvm-common-rhev-10:2.12.0-18.el7_6.5.x86_64",
"7Server-RH7-RHOS-10.0:qemu-kvm-rhev-10:2.12.0-18.el7_6.5.src",
"7Server-RH7-RHOS-10.0:qemu-kvm-rhev-10:2.12.0-18.el7_6.5.x86_64",
"7Server-RH7-RHOS-10.0:qemu-kvm-rhev-debuginfo-10:2.12.0-18.el7_6.5.x86_64",
"7Server-RH7-RHOS-10.0:qemu-kvm-tools-rhev-10:2.12.0-18.el7_6.5.x86_64"
],
"restart_required": {
"category": "none"
},
"url": "https://access.redhat.com/errata/RHSA-2019:1200"
}
],
"scores": [
{
"cvss_v3": {
"attackComplexity": "LOW",
"attackVector": "LOCAL",
"availabilityImpact": "NONE",
"baseScore": 3.8,
"baseSeverity": "LOW",
"confidentialityImpact": "LOW",
"integrityImpact": "NONE",
"privilegesRequired": "LOW",
"scope": "CHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:L/I:N/A:N",
"version": "3.0"
},
"products": [
"7Server-RH7-RHOS-10.0:qemu-img-rhev-10:2.12.0-18.el7_6.5.x86_64",
"7Server-RH7-RHOS-10.0:qemu-kvm-common-rhev-10:2.12.0-18.el7_6.5.x86_64",
"7Server-RH7-RHOS-10.0:qemu-kvm-rhev-10:2.12.0-18.el7_6.5.src",
"7Server-RH7-RHOS-10.0:qemu-kvm-rhev-10:2.12.0-18.el7_6.5.x86_64",
"7Server-RH7-RHOS-10.0:qemu-kvm-rhev-debuginfo-10:2.12.0-18.el7_6.5.x86_64",
"7Server-RH7-RHOS-10.0:qemu-kvm-tools-rhev-10:2.12.0-18.el7_6.5.x86_64"
]
}
],
"threats": [
{
"category": "impact",
"details": "Moderate"
}
],
"title": "hardware: Microarchitectural Data Sampling Uncacheable Memory (MDSUM)"
}
]
}
RHSA-2019:1201
Vulnerability from csaf_redhat - Published: 2019-05-14 20:45 - Updated: 2026-05-28 20:36Summary
Red Hat Security Advisory: qemu-kvm-rhev security update
Severity
Important
Notes
Topic: An update for qemu-kvm-rhev is now available for Red Hat OpenStack Platform 13.0 (Queens).
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: KVM (Kernel-based Virtual Machine) is a full virtualization solution for Linux on a variety of architectures. The qemu-kvm-rhev packages provide the user-space component for running virtual machines that use KVM in environments managed by Red Hat products.
Security Fix(es):
* A flaw was found in the implementation of the "fill buffer", a mechanism used by modern CPUs when a cache-miss is made on L1 CPU cache. If an attacker can generate a load operation that would create a page fault, the execution will continue speculatively with incorrect data from the fill buffer while the data is fetched from higher level caches. This response time can be measured to infer data in the fill buffer. (CVE-2018-12130)
* Modern Intel microprocessors implement hardware-level micro-optimizations to improve the performance of writing data back to CPU caches. The write operation is split into STA (STore Address) and STD (STore Data) sub-operations. These sub-operations allow the processor to hand-off address generation logic into these sub-operations for optimized writes. Both of these sub-operations write to a shared distributed processor structure called the 'processor store buffer'. As a result, an unprivileged attacker could use this flaw to read private data resident within the CPU's processor store buffer. (CVE-2018-12126)
* Microprocessors use a ‘load port’ subcomponent to perform load operations from memory or IO. During a load operation, the load port receives data from the memory or IO subsystem and then provides the data to the CPU registers and operations in the CPU’s pipelines. Stale load operations results are stored in the 'load port' table until overwritten by newer operations. Certain load-port operations triggered by an attacker can be used to reveal data about previous stale requests leaking data back to the attacker via a timing side-channel. (CVE-2018-12127)
* Uncacheable memory on some microprocessors utilizing speculative execution may allow an authenticated user to potentially enable information disclosure via a side channel with local access. (CVE-2019-11091)
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.
Modern Intel microprocessors implement hardware-level micro-optimizations to improve the performance of writing data back to CPU caches. The write operation is split into STA (STore Address) and STD (STore Data) sub-operations. These sub-operations allow the processor to hand-off address generation logic into these sub-operations for optimized writes. Both of these sub-operations write to a shared distributed processor structure called the 'processor store buffer'. As a result, an unprivileged attacker could use this flaw to read private data resident within the CPU's processor store buffer.
6.5 (Medium)
Affected products
Fixed
11 products
| Product | Identifier | Version | Remediation |
|---|---|---|---|
| Unresolved product id: 7Server-RH7-RHOS-13.0:qemu-img-rhev-10:2.12.0-18.el7_6.5.ppc64le | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-RH7-RHOS-13.0:qemu-img-rhev-10:2.12.0-18.el7_6.5.x86_64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-RH7-RHOS-13.0:qemu-kvm-common-rhev-10:2.12.0-18.el7_6.5.ppc64le | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-RH7-RHOS-13.0:qemu-kvm-common-rhev-10:2.12.0-18.el7_6.5.x86_64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-RH7-RHOS-13.0:qemu-kvm-rhev-10:2.12.0-18.el7_6.5.ppc64le | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-RH7-RHOS-13.0:qemu-kvm-rhev-10:2.12.0-18.el7_6.5.src | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-RH7-RHOS-13.0:qemu-kvm-rhev-10:2.12.0-18.el7_6.5.x86_64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-RH7-RHOS-13.0:qemu-kvm-rhev-debuginfo-10:2.12.0-18.el7_6.5.ppc64le | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-RH7-RHOS-13.0:qemu-kvm-rhev-debuginfo-10:2.12.0-18.el7_6.5.x86_64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-RH7-RHOS-13.0:qemu-kvm-tools-rhev-10:2.12.0-18.el7_6.5.ppc64le | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-RH7-RHOS-13.0:qemu-kvm-tools-rhev-10:2.12.0-18.el7_6.5.x86_64 | — |
Vendor Fix
fix
|
Threats
Impact
Moderate
Microprocessors use a ‘load port’ subcomponent to perform load operations from memory or IO. During a load operation, the load port receives data from the memory or IO subsystem and then provides the data to the CPU registers and operations in the CPU’s pipelines. Stale load operations results are stored in the 'load port' table until overwritten by newer operations. Certain load-port operations triggered by an attacker can be used to reveal data about previous stale requests leaking data back to the attacker via a timing side-channel.
6.5 (Medium)
Affected products
Fixed
11 products
| Product | Identifier | Version | Remediation |
|---|---|---|---|
| Unresolved product id: 7Server-RH7-RHOS-13.0:qemu-img-rhev-10:2.12.0-18.el7_6.5.ppc64le | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-RH7-RHOS-13.0:qemu-img-rhev-10:2.12.0-18.el7_6.5.x86_64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-RH7-RHOS-13.0:qemu-kvm-common-rhev-10:2.12.0-18.el7_6.5.ppc64le | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-RH7-RHOS-13.0:qemu-kvm-common-rhev-10:2.12.0-18.el7_6.5.x86_64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-RH7-RHOS-13.0:qemu-kvm-rhev-10:2.12.0-18.el7_6.5.ppc64le | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-RH7-RHOS-13.0:qemu-kvm-rhev-10:2.12.0-18.el7_6.5.src | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-RH7-RHOS-13.0:qemu-kvm-rhev-10:2.12.0-18.el7_6.5.x86_64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-RH7-RHOS-13.0:qemu-kvm-rhev-debuginfo-10:2.12.0-18.el7_6.5.ppc64le | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-RH7-RHOS-13.0:qemu-kvm-rhev-debuginfo-10:2.12.0-18.el7_6.5.x86_64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-RH7-RHOS-13.0:qemu-kvm-tools-rhev-10:2.12.0-18.el7_6.5.ppc64le | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-RH7-RHOS-13.0:qemu-kvm-tools-rhev-10:2.12.0-18.el7_6.5.x86_64 | — |
Vendor Fix
fix
|
Threats
Impact
Moderate
A flaw was found in the implementation of the "fill buffer", a mechanism used by modern CPUs when a cache-miss is made on L1 CPU cache. If an attacker can generate a load operation that would create a page fault, the execution will continue speculatively with incorrect data from the fill buffer while the data is fetched from higher level caches. This response time can be measured to infer data in the fill buffer.
6.2 (Medium)
Affected products
Fixed
11 products
| Product | Identifier | Version | Remediation |
|---|---|---|---|
| Unresolved product id: 7Server-RH7-RHOS-13.0:qemu-img-rhev-10:2.12.0-18.el7_6.5.ppc64le | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-RH7-RHOS-13.0:qemu-img-rhev-10:2.12.0-18.el7_6.5.x86_64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-RH7-RHOS-13.0:qemu-kvm-common-rhev-10:2.12.0-18.el7_6.5.ppc64le | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-RH7-RHOS-13.0:qemu-kvm-common-rhev-10:2.12.0-18.el7_6.5.x86_64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-RH7-RHOS-13.0:qemu-kvm-rhev-10:2.12.0-18.el7_6.5.ppc64le | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-RH7-RHOS-13.0:qemu-kvm-rhev-10:2.12.0-18.el7_6.5.src | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-RH7-RHOS-13.0:qemu-kvm-rhev-10:2.12.0-18.el7_6.5.x86_64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-RH7-RHOS-13.0:qemu-kvm-rhev-debuginfo-10:2.12.0-18.el7_6.5.ppc64le | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-RH7-RHOS-13.0:qemu-kvm-rhev-debuginfo-10:2.12.0-18.el7_6.5.x86_64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-RH7-RHOS-13.0:qemu-kvm-tools-rhev-10:2.12.0-18.el7_6.5.ppc64le | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-RH7-RHOS-13.0:qemu-kvm-tools-rhev-10:2.12.0-18.el7_6.5.x86_64 | — |
Vendor Fix
fix
|
Threats
Impact
Important
Uncacheable memory on some microprocessors utilizing speculative execution may allow an authenticated user to potentially enable information disclosure via a side channel with local access.
CWE-515 - Covert Storage ChannelAffected products
Fixed
11 products
| Product | Identifier | Version | Remediation |
|---|---|---|---|
| Unresolved product id: 7Server-RH7-RHOS-13.0:qemu-img-rhev-10:2.12.0-18.el7_6.5.ppc64le | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-RH7-RHOS-13.0:qemu-img-rhev-10:2.12.0-18.el7_6.5.x86_64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-RH7-RHOS-13.0:qemu-kvm-common-rhev-10:2.12.0-18.el7_6.5.ppc64le | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-RH7-RHOS-13.0:qemu-kvm-common-rhev-10:2.12.0-18.el7_6.5.x86_64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-RH7-RHOS-13.0:qemu-kvm-rhev-10:2.12.0-18.el7_6.5.ppc64le | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-RH7-RHOS-13.0:qemu-kvm-rhev-10:2.12.0-18.el7_6.5.src | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-RH7-RHOS-13.0:qemu-kvm-rhev-10:2.12.0-18.el7_6.5.x86_64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-RH7-RHOS-13.0:qemu-kvm-rhev-debuginfo-10:2.12.0-18.el7_6.5.ppc64le | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-RH7-RHOS-13.0:qemu-kvm-rhev-debuginfo-10:2.12.0-18.el7_6.5.x86_64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-RH7-RHOS-13.0:qemu-kvm-tools-rhev-10:2.12.0-18.el7_6.5.ppc64le | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-RH7-RHOS-13.0:qemu-kvm-tools-rhev-10:2.12.0-18.el7_6.5.x86_64 | — |
Vendor Fix
fix
|
Threats
Impact
Moderate
References
26 references
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"text": "KVM (Kernel-based Virtual Machine) is a full virtualization solution for Linux on a variety of architectures. The qemu-kvm-rhev packages provide the user-space component for running virtual machines that use KVM in environments managed by Red Hat products.\n\nSecurity Fix(es):\n\n* A flaw was found in the implementation of the \"fill buffer\", a mechanism used by modern CPUs when a cache-miss is made on L1 CPU cache. If an attacker can generate a load operation that would create a page fault, the execution will continue speculatively with incorrect data from the fill buffer while the data is fetched from higher level caches. This response time can be measured to infer data in the fill buffer. (CVE-2018-12130)\n\n* Modern Intel microprocessors implement hardware-level micro-optimizations to improve the performance of writing data back to CPU caches. The write operation is split into STA (STore Address) and STD (STore Data) sub-operations. These sub-operations allow the processor to hand-off address generation logic into these sub-operations for optimized writes. Both of these sub-operations write to a shared distributed processor structure called the \u0027processor store buffer\u0027. As a result, an unprivileged attacker could use this flaw to read private data resident within the CPU\u0027s processor store buffer. (CVE-2018-12126)\n\n* Microprocessors use a \u2018load port\u2019 subcomponent to perform load operations from memory or IO. During a load operation, the load port receives data from the memory or IO subsystem and then provides the data to the CPU registers and operations in the CPU\u2019s pipelines. Stale load operations results are stored in the \u0027load port\u0027 table until overwritten by newer operations. Certain load-port operations triggered by an attacker can be used to reveal data about previous stale requests leaking data back to the attacker via a timing side-channel. (CVE-2018-12127)\n\n* Uncacheable memory on some microprocessors utilizing speculative execution may allow an authenticated user to potentially enable information disclosure via a side channel with local access. (CVE-2019-11091)",
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{
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}
RHSA-2019:1202
Vulnerability from csaf_redhat - Published: 2019-05-14 20:45 - Updated: 2026-05-28 20:36Summary
Red Hat Security Advisory: qemu-kvm-rhev security update
Severity
Important
Notes
Topic: An update for qemu-kvm-rhev is now available for Red Hat OpenStack Platform 14.0 (Rocky).
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: KVM (Kernel-based Virtual Machine) is a full virtualization solution for Linux on a variety of architectures. The qemu-kvm-rhev packages provide the user-space component for running virtual machines that use KVM in environments managed by Red Hat products.
Security Fix(es):
* A flaw was found in the implementation of the "fill buffer", a mechanism used by modern CPUs when a cache-miss is made on L1 CPU cache. If an attacker can generate a load operation that would create a page fault, the execution will continue speculatively with incorrect data from the fill buffer while the data is fetched from higher level caches. This response time can be measured to infer data in the fill buffer. (CVE-2018-12130)
* Modern Intel microprocessors implement hardware-level micro-optimizations to improve the performance of writing data back to CPU caches. The write operation is split into STA (STore Address) and STD (STore Data) sub-operations. These sub-operations allow the processor to hand-off address generation logic into these sub-operations for optimized writes. Both of these sub-operations write to a shared distributed processor structure called the 'processor store buffer'. As a result, an unprivileged attacker could use this flaw to read private data resident within the CPU's processor store buffer. (CVE-2018-12126)
* Microprocessors use a ‘load port’ subcomponent to perform load operations from memory or IO. During a load operation, the load port receives data from the memory or IO subsystem and then provides the data to the CPU registers and operations in the CPU’s pipelines. Stale load operations results are stored in the 'load port' table until overwritten by newer operations. Certain load-port operations triggered by an attacker can be used to reveal data about previous stale requests leaking data back to the attacker via a timing side-channel. (CVE-2018-12127)
* Uncacheable memory on some microprocessors utilizing speculative execution may allow an authenticated user to potentially enable information disclosure via a side channel with local access. (CVE-2019-11091)
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.
Modern Intel microprocessors implement hardware-level micro-optimizations to improve the performance of writing data back to CPU caches. The write operation is split into STA (STore Address) and STD (STore Data) sub-operations. These sub-operations allow the processor to hand-off address generation logic into these sub-operations for optimized writes. Both of these sub-operations write to a shared distributed processor structure called the 'processor store buffer'. As a result, an unprivileged attacker could use this flaw to read private data resident within the CPU's processor store buffer.
6.5 (Medium)
Affected products
Fixed
11 products
| Product | Identifier | Version | Remediation |
|---|---|---|---|
| Unresolved product id: 7Server-RH7-RHOS-14.0:qemu-img-rhev-10:2.12.0-18.el7_6.5.ppc64le | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-RH7-RHOS-14.0:qemu-img-rhev-10:2.12.0-18.el7_6.5.x86_64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-RH7-RHOS-14.0:qemu-kvm-common-rhev-10:2.12.0-18.el7_6.5.ppc64le | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-RH7-RHOS-14.0:qemu-kvm-common-rhev-10:2.12.0-18.el7_6.5.x86_64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-RH7-RHOS-14.0:qemu-kvm-rhev-10:2.12.0-18.el7_6.5.ppc64le | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-RH7-RHOS-14.0:qemu-kvm-rhev-10:2.12.0-18.el7_6.5.src | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-RH7-RHOS-14.0:qemu-kvm-rhev-10:2.12.0-18.el7_6.5.x86_64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-RH7-RHOS-14.0:qemu-kvm-rhev-debuginfo-10:2.12.0-18.el7_6.5.ppc64le | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-RH7-RHOS-14.0:qemu-kvm-rhev-debuginfo-10:2.12.0-18.el7_6.5.x86_64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-RH7-RHOS-14.0:qemu-kvm-tools-rhev-10:2.12.0-18.el7_6.5.ppc64le | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-RH7-RHOS-14.0:qemu-kvm-tools-rhev-10:2.12.0-18.el7_6.5.x86_64 | — |
Vendor Fix
fix
|
Threats
Impact
Moderate
Microprocessors use a ‘load port’ subcomponent to perform load operations from memory or IO. During a load operation, the load port receives data from the memory or IO subsystem and then provides the data to the CPU registers and operations in the CPU’s pipelines. Stale load operations results are stored in the 'load port' table until overwritten by newer operations. Certain load-port operations triggered by an attacker can be used to reveal data about previous stale requests leaking data back to the attacker via a timing side-channel.
6.5 (Medium)
Affected products
Fixed
11 products
| Product | Identifier | Version | Remediation |
|---|---|---|---|
| Unresolved product id: 7Server-RH7-RHOS-14.0:qemu-img-rhev-10:2.12.0-18.el7_6.5.ppc64le | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-RH7-RHOS-14.0:qemu-img-rhev-10:2.12.0-18.el7_6.5.x86_64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-RH7-RHOS-14.0:qemu-kvm-common-rhev-10:2.12.0-18.el7_6.5.ppc64le | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-RH7-RHOS-14.0:qemu-kvm-common-rhev-10:2.12.0-18.el7_6.5.x86_64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-RH7-RHOS-14.0:qemu-kvm-rhev-10:2.12.0-18.el7_6.5.ppc64le | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-RH7-RHOS-14.0:qemu-kvm-rhev-10:2.12.0-18.el7_6.5.src | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-RH7-RHOS-14.0:qemu-kvm-rhev-10:2.12.0-18.el7_6.5.x86_64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-RH7-RHOS-14.0:qemu-kvm-rhev-debuginfo-10:2.12.0-18.el7_6.5.ppc64le | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-RH7-RHOS-14.0:qemu-kvm-rhev-debuginfo-10:2.12.0-18.el7_6.5.x86_64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-RH7-RHOS-14.0:qemu-kvm-tools-rhev-10:2.12.0-18.el7_6.5.ppc64le | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-RH7-RHOS-14.0:qemu-kvm-tools-rhev-10:2.12.0-18.el7_6.5.x86_64 | — |
Vendor Fix
fix
|
Threats
Impact
Moderate
A flaw was found in the implementation of the "fill buffer", a mechanism used by modern CPUs when a cache-miss is made on L1 CPU cache. If an attacker can generate a load operation that would create a page fault, the execution will continue speculatively with incorrect data from the fill buffer while the data is fetched from higher level caches. This response time can be measured to infer data in the fill buffer.
6.2 (Medium)
Affected products
Fixed
11 products
| Product | Identifier | Version | Remediation |
|---|---|---|---|
| Unresolved product id: 7Server-RH7-RHOS-14.0:qemu-img-rhev-10:2.12.0-18.el7_6.5.ppc64le | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-RH7-RHOS-14.0:qemu-img-rhev-10:2.12.0-18.el7_6.5.x86_64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-RH7-RHOS-14.0:qemu-kvm-common-rhev-10:2.12.0-18.el7_6.5.ppc64le | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-RH7-RHOS-14.0:qemu-kvm-common-rhev-10:2.12.0-18.el7_6.5.x86_64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-RH7-RHOS-14.0:qemu-kvm-rhev-10:2.12.0-18.el7_6.5.ppc64le | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-RH7-RHOS-14.0:qemu-kvm-rhev-10:2.12.0-18.el7_6.5.src | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-RH7-RHOS-14.0:qemu-kvm-rhev-10:2.12.0-18.el7_6.5.x86_64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-RH7-RHOS-14.0:qemu-kvm-rhev-debuginfo-10:2.12.0-18.el7_6.5.ppc64le | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-RH7-RHOS-14.0:qemu-kvm-rhev-debuginfo-10:2.12.0-18.el7_6.5.x86_64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-RH7-RHOS-14.0:qemu-kvm-tools-rhev-10:2.12.0-18.el7_6.5.ppc64le | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-RH7-RHOS-14.0:qemu-kvm-tools-rhev-10:2.12.0-18.el7_6.5.x86_64 | — |
Vendor Fix
fix
|
Threats
Impact
Important
Uncacheable memory on some microprocessors utilizing speculative execution may allow an authenticated user to potentially enable information disclosure via a side channel with local access.
CWE-515 - Covert Storage ChannelAffected products
Fixed
11 products
| Product | Identifier | Version | Remediation |
|---|---|---|---|
| Unresolved product id: 7Server-RH7-RHOS-14.0:qemu-img-rhev-10:2.12.0-18.el7_6.5.ppc64le | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-RH7-RHOS-14.0:qemu-img-rhev-10:2.12.0-18.el7_6.5.x86_64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-RH7-RHOS-14.0:qemu-kvm-common-rhev-10:2.12.0-18.el7_6.5.ppc64le | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-RH7-RHOS-14.0:qemu-kvm-common-rhev-10:2.12.0-18.el7_6.5.x86_64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-RH7-RHOS-14.0:qemu-kvm-rhev-10:2.12.0-18.el7_6.5.ppc64le | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-RH7-RHOS-14.0:qemu-kvm-rhev-10:2.12.0-18.el7_6.5.src | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-RH7-RHOS-14.0:qemu-kvm-rhev-10:2.12.0-18.el7_6.5.x86_64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-RH7-RHOS-14.0:qemu-kvm-rhev-debuginfo-10:2.12.0-18.el7_6.5.ppc64le | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-RH7-RHOS-14.0:qemu-kvm-rhev-debuginfo-10:2.12.0-18.el7_6.5.x86_64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-RH7-RHOS-14.0:qemu-kvm-tools-rhev-10:2.12.0-18.el7_6.5.ppc64le | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-RH7-RHOS-14.0:qemu-kvm-tools-rhev-10:2.12.0-18.el7_6.5.x86_64 | — |
Vendor Fix
fix
|
Threats
Impact
Moderate
References
26 references
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"text": "KVM (Kernel-based Virtual Machine) is a full virtualization solution for Linux on a variety of architectures. The qemu-kvm-rhev packages provide the user-space component for running virtual machines that use KVM in environments managed by Red Hat products.\n\nSecurity Fix(es):\n\n* A flaw was found in the implementation of the \"fill buffer\", a mechanism used by modern CPUs when a cache-miss is made on L1 CPU cache. If an attacker can generate a load operation that would create a page fault, the execution will continue speculatively with incorrect data from the fill buffer while the data is fetched from higher level caches. This response time can be measured to infer data in the fill buffer. (CVE-2018-12130)\n\n* Modern Intel microprocessors implement hardware-level micro-optimizations to improve the performance of writing data back to CPU caches. The write operation is split into STA (STore Address) and STD (STore Data) sub-operations. These sub-operations allow the processor to hand-off address generation logic into these sub-operations for optimized writes. Both of these sub-operations write to a shared distributed processor structure called the \u0027processor store buffer\u0027. As a result, an unprivileged attacker could use this flaw to read private data resident within the CPU\u0027s processor store buffer. (CVE-2018-12126)\n\n* Microprocessors use a \u2018load port\u2019 subcomponent to perform load operations from memory or IO. During a load operation, the load port receives data from the memory or IO subsystem and then provides the data to the CPU registers and operations in the CPU\u2019s pipelines. Stale load operations results are stored in the \u0027load port\u0027 table until overwritten by newer operations. Certain load-port operations triggered by an attacker can be used to reveal data about previous stale requests leaking data back to the attacker via a timing side-channel. (CVE-2018-12127)\n\n* Uncacheable memory on some microprocessors utilizing speculative execution may allow an authenticated user to potentially enable information disclosure via a side channel with local access. (CVE-2019-11091)",
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]
}
],
"threats": [
{
"category": "impact",
"details": "Moderate"
}
],
"title": "hardware: Micro-architectural Load Port Data Sampling - Information Leak (MLPDS)"
},
{
"cve": "CVE-2018-12130",
"cwe": {
"id": "CWE-208",
"name": "Observable Timing Discrepancy"
},
"discovery_date": "2018-11-06T00:00:00+00:00",
"ids": [
{
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"text": "1646784"
}
],
"notes": [
{
"category": "description",
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"title": "Vulnerability description"
},
{
"category": "summary",
"text": "hardware: Microarchitectural Fill Buffer Data Sampling (MFBDS)",
"title": "Vulnerability summary"
},
{
"category": "other",
"text": "Red Hat Product Security is aware of this issue. Updates will be released as they become available. For additional information, please refer to the \u0027Vulnerability Response\u0027 URL.",
"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"
}
],
"product_status": {
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]
},
"references": [
{
"category": "self",
"summary": "Canonical URL",
"url": "https://access.redhat.com/security/cve/CVE-2018-12130"
},
{
"category": "external",
"summary": "RHBZ#1646784",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=1646784"
},
{
"category": "external",
"summary": "RHSB-mds",
"url": "https://access.redhat.com/security/vulnerabilities/mds"
},
{
"category": "external",
"summary": "https://www.cve.org/CVERecord?id=CVE-2018-12130",
"url": "https://www.cve.org/CVERecord?id=CVE-2018-12130"
},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2018-12130",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2018-12130"
}
],
"release_date": "2019-05-14T17:00:00+00:00",
"remediations": [
{
"category": "vendor_fix",
"date": "2019-05-14T20:45:36+00:00",
"details": "For details on how to apply this update, which includes the changes described in this advisory, refer to:\n\nhttps://access.redhat.com/articles/11258\n\nAfter installing this update, shut down all running virtual machines. Once all virtual machines have shut down, start them again for this update to take effect.",
"product_ids": [
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],
"restart_required": {
"category": "none"
},
"url": "https://access.redhat.com/errata/RHSA-2019:1202"
}
],
"scores": [
{
"cvss_v3": {
"attackComplexity": "LOW",
"attackVector": "LOCAL",
"availabilityImpact": "NONE",
"baseScore": 6.2,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "HIGH",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
"version": "3.0"
},
"products": [
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]
}
],
"threats": [
{
"category": "impact",
"details": "Important"
}
],
"title": "hardware: Microarchitectural Fill Buffer Data Sampling (MFBDS)"
},
{
"cve": "CVE-2019-11091",
"cwe": {
"id": "CWE-515",
"name": "Covert Storage Channel"
},
"discovery_date": "2018-11-06T00:00:00+00:00",
"ids": [
{
"system_name": "Red Hat Bugzilla ID",
"text": "1705312"
}
],
"notes": [
{
"category": "description",
"text": "Uncacheable memory on some microprocessors utilizing speculative execution may allow an authenticated user to potentially enable information disclosure via a side channel with local access.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "hardware: Microarchitectural Data Sampling Uncacheable Memory (MDSUM)",
"title": "Vulnerability summary"
},
{
"category": "other",
"text": "Red Hat Product Security is aware of this issue. Updates will be released as they become available. For additional information, please refer to the \u0027Vulnerability Response\u0027 URL.",
"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"
}
],
"product_status": {
"fixed": [
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]
},
"references": [
{
"category": "self",
"summary": "Canonical URL",
"url": "https://access.redhat.com/security/cve/CVE-2019-11091"
},
{
"category": "external",
"summary": "RHBZ#1705312",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=1705312"
},
{
"category": "external",
"summary": "RHSB-mds",
"url": "https://access.redhat.com/security/vulnerabilities/mds"
},
{
"category": "external",
"summary": "https://www.cve.org/CVERecord?id=CVE-2019-11091",
"url": "https://www.cve.org/CVERecord?id=CVE-2019-11091"
},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2019-11091",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2019-11091"
}
],
"release_date": "2019-05-14T17:00:00+00:00",
"remediations": [
{
"category": "vendor_fix",
"date": "2019-05-14T20:45:36+00:00",
"details": "For details on how to apply this update, which includes the changes described in this advisory, refer to:\n\nhttps://access.redhat.com/articles/11258\n\nAfter installing this update, shut down all running virtual machines. Once all virtual machines have shut down, start them again for this update to take effect.",
"product_ids": [
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],
"restart_required": {
"category": "none"
},
"url": "https://access.redhat.com/errata/RHSA-2019:1202"
}
],
"scores": [
{
"cvss_v3": {
"attackComplexity": "LOW",
"attackVector": "LOCAL",
"availabilityImpact": "NONE",
"baseScore": 3.8,
"baseSeverity": "LOW",
"confidentialityImpact": "LOW",
"integrityImpact": "NONE",
"privilegesRequired": "LOW",
"scope": "CHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:L/I:N/A:N",
"version": "3.0"
},
"products": [
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]
}
],
"threats": [
{
"category": "impact",
"details": "Moderate"
}
],
"title": "hardware: Microarchitectural Data Sampling Uncacheable Memory (MDSUM)"
}
]
}
RHSA-2019:1203
Vulnerability from csaf_redhat - Published: 2019-05-14 21:10 - Updated: 2026-05-28 20:36Summary
Red Hat Security Advisory: vdsm security update
Severity
Important
Notes
Topic: An update for vdsm is now available for Red Hat Virtualization 4 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 VDSM service is required by a Virtualization Manager to manage the Linux hosts. VDSM manages and monitors the host's storage, memory and networks as well as virtual machine creation, other host administration tasks, statistics gathering, and log collection.
Security Fix(es):
* A flaw was found in the implementation of the "fill buffer", a mechanism used by modern CPUs when a cache-miss is made on L1 CPU cache. If an attacker can generate a load operation that would create a page fault, the execution will continue speculatively with incorrect data from the fill buffer while the data is fetched from higher level caches. This response time can be measured to infer data in the fill buffer. (CVE-2018-12130)
* Modern Intel microprocessors implement hardware-level micro-optimizations to improve the performance of writing data back to CPU caches. The write operation is split into STA (STore Address) and STD (STore Data) sub-operations. These sub-operations allow the processor to hand-off address generation logic into these sub-operations for optimized writes. Both of these sub-operations write to a shared distributed processor structure called the 'processor store buffer'. As a result, an unprivileged attacker could use this flaw to read private data resident within the CPU's processor store buffer. (CVE-2018-12126)
* Microprocessors use a ‘load port’ subcomponent to perform load operations from memory or IO. During a load operation, the load port receives data from the memory or IO subsystem and then provides the data to the CPU registers and operations in the CPU’s pipelines. Stale load operations results are stored in the 'load port' table until overwritten by newer operations. Certain load-port operations triggered by an attacker can be used to reveal data about previous stale requests leaking data back to the attacker via a timing side-channel. (CVE-2018-12127)
* Uncacheable memory on some microprocessors utilizing speculative execution may allow an authenticated user to potentially enable information disclosure via a side channel with local access. (CVE-2019-11091)
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.
Modern Intel microprocessors implement hardware-level micro-optimizations to improve the performance of writing data back to CPU caches. The write operation is split into STA (STore Address) and STD (STore Data) sub-operations. These sub-operations allow the processor to hand-off address generation logic into these sub-operations for optimized writes. Both of these sub-operations write to a shared distributed processor structure called the 'processor store buffer'. As a result, an unprivileged attacker could use this flaw to read private data resident within the CPU's processor store buffer.
6.5 (Medium)
Affected products
Fixed
27 products
| Product | Identifier | Version | Remediation |
|---|---|---|---|
| Unresolved product id: 7Server-RHEV-4-Agents-7:vdsm-0:4.30.13-4.el7ev.ppc64le | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-RHEV-4-Agents-7:vdsm-0:4.30.13-4.el7ev.src | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-RHEV-4-Agents-7:vdsm-0:4.30.13-4.el7ev.x86_64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-RHEV-4-Agents-7:vdsm-api-0:4.30.13-4.el7ev.noarch | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-RHEV-4-Agents-7:vdsm-client-0:4.30.13-4.el7ev.noarch | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-RHEV-4-Agents-7:vdsm-common-0:4.30.13-4.el7ev.noarch | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-RHEV-4-Agents-7:vdsm-gluster-0:4.30.13-4.el7ev.ppc64le | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-RHEV-4-Agents-7:vdsm-gluster-0:4.30.13-4.el7ev.x86_64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-RHEV-4-Agents-7:vdsm-hook-checkips-0:4.30.13-4.el7ev.ppc64le | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-RHEV-4-Agents-7:vdsm-hook-checkips-0:4.30.13-4.el7ev.x86_64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-RHEV-4-Agents-7:vdsm-hook-cpuflags-0:4.30.13-4.el7ev.noarch | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-RHEV-4-Agents-7:vdsm-hook-ethtool-options-0:4.30.13-4.el7ev.noarch | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-RHEV-4-Agents-7:vdsm-hook-extra-ipv4-addrs-0:4.30.13-4.el7ev.ppc64le | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-RHEV-4-Agents-7:vdsm-hook-extra-ipv4-addrs-0:4.30.13-4.el7ev.x86_64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-RHEV-4-Agents-7:vdsm-hook-fcoe-0:4.30.13-4.el7ev.noarch | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-RHEV-4-Agents-7:vdsm-hook-localdisk-0:4.30.13-4.el7ev.noarch | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-RHEV-4-Agents-7:vdsm-hook-macspoof-0:4.30.13-4.el7ev.noarch | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-RHEV-4-Agents-7:vdsm-hook-nestedvt-0:4.30.13-4.el7ev.noarch | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-RHEV-4-Agents-7:vdsm-hook-openstacknet-0:4.30.13-4.el7ev.noarch | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-RHEV-4-Agents-7:vdsm-hook-vhostmd-0:4.30.13-4.el7ev.noarch | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-RHEV-4-Agents-7:vdsm-hook-vmfex-dev-0:4.30.13-4.el7ev.noarch | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-RHEV-4-Agents-7:vdsm-http-0:4.30.13-4.el7ev.noarch | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-RHEV-4-Agents-7:vdsm-jsonrpc-0:4.30.13-4.el7ev.noarch | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-RHEV-4-Agents-7:vdsm-network-0:4.30.13-4.el7ev.ppc64le | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-RHEV-4-Agents-7:vdsm-network-0:4.30.13-4.el7ev.x86_64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-RHEV-4-Agents-7:vdsm-python-0:4.30.13-4.el7ev.noarch | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-RHEV-4-Agents-7:vdsm-yajsonrpc-0:4.30.13-4.el7ev.noarch | — |
Vendor Fix
fix
|
Threats
Impact
Moderate
Microprocessors use a ‘load port’ subcomponent to perform load operations from memory or IO. During a load operation, the load port receives data from the memory or IO subsystem and then provides the data to the CPU registers and operations in the CPU’s pipelines. Stale load operations results are stored in the 'load port' table until overwritten by newer operations. Certain load-port operations triggered by an attacker can be used to reveal data about previous stale requests leaking data back to the attacker via a timing side-channel.
6.5 (Medium)
Affected products
Fixed
27 products
| Product | Identifier | Version | Remediation |
|---|---|---|---|
| Unresolved product id: 7Server-RHEV-4-Agents-7:vdsm-0:4.30.13-4.el7ev.ppc64le | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-RHEV-4-Agents-7:vdsm-0:4.30.13-4.el7ev.src | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-RHEV-4-Agents-7:vdsm-0:4.30.13-4.el7ev.x86_64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-RHEV-4-Agents-7:vdsm-api-0:4.30.13-4.el7ev.noarch | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-RHEV-4-Agents-7:vdsm-client-0:4.30.13-4.el7ev.noarch | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-RHEV-4-Agents-7:vdsm-common-0:4.30.13-4.el7ev.noarch | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-RHEV-4-Agents-7:vdsm-gluster-0:4.30.13-4.el7ev.ppc64le | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-RHEV-4-Agents-7:vdsm-gluster-0:4.30.13-4.el7ev.x86_64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-RHEV-4-Agents-7:vdsm-hook-checkips-0:4.30.13-4.el7ev.ppc64le | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-RHEV-4-Agents-7:vdsm-hook-checkips-0:4.30.13-4.el7ev.x86_64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-RHEV-4-Agents-7:vdsm-hook-cpuflags-0:4.30.13-4.el7ev.noarch | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-RHEV-4-Agents-7:vdsm-hook-ethtool-options-0:4.30.13-4.el7ev.noarch | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-RHEV-4-Agents-7:vdsm-hook-extra-ipv4-addrs-0:4.30.13-4.el7ev.ppc64le | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-RHEV-4-Agents-7:vdsm-hook-extra-ipv4-addrs-0:4.30.13-4.el7ev.x86_64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-RHEV-4-Agents-7:vdsm-hook-fcoe-0:4.30.13-4.el7ev.noarch | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-RHEV-4-Agents-7:vdsm-hook-localdisk-0:4.30.13-4.el7ev.noarch | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-RHEV-4-Agents-7:vdsm-hook-macspoof-0:4.30.13-4.el7ev.noarch | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-RHEV-4-Agents-7:vdsm-hook-nestedvt-0:4.30.13-4.el7ev.noarch | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-RHEV-4-Agents-7:vdsm-hook-openstacknet-0:4.30.13-4.el7ev.noarch | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-RHEV-4-Agents-7:vdsm-hook-vhostmd-0:4.30.13-4.el7ev.noarch | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-RHEV-4-Agents-7:vdsm-hook-vmfex-dev-0:4.30.13-4.el7ev.noarch | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-RHEV-4-Agents-7:vdsm-http-0:4.30.13-4.el7ev.noarch | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-RHEV-4-Agents-7:vdsm-jsonrpc-0:4.30.13-4.el7ev.noarch | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-RHEV-4-Agents-7:vdsm-network-0:4.30.13-4.el7ev.ppc64le | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-RHEV-4-Agents-7:vdsm-network-0:4.30.13-4.el7ev.x86_64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-RHEV-4-Agents-7:vdsm-python-0:4.30.13-4.el7ev.noarch | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-RHEV-4-Agents-7:vdsm-yajsonrpc-0:4.30.13-4.el7ev.noarch | — |
Vendor Fix
fix
|
Threats
Impact
Moderate
A flaw was found in the implementation of the "fill buffer", a mechanism used by modern CPUs when a cache-miss is made on L1 CPU cache. If an attacker can generate a load operation that would create a page fault, the execution will continue speculatively with incorrect data from the fill buffer while the data is fetched from higher level caches. This response time can be measured to infer data in the fill buffer.
6.2 (Medium)
Affected products
Fixed
27 products
| Product | Identifier | Version | Remediation |
|---|---|---|---|
| Unresolved product id: 7Server-RHEV-4-Agents-7:vdsm-0:4.30.13-4.el7ev.ppc64le | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-RHEV-4-Agents-7:vdsm-0:4.30.13-4.el7ev.src | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-RHEV-4-Agents-7:vdsm-0:4.30.13-4.el7ev.x86_64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-RHEV-4-Agents-7:vdsm-api-0:4.30.13-4.el7ev.noarch | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-RHEV-4-Agents-7:vdsm-client-0:4.30.13-4.el7ev.noarch | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-RHEV-4-Agents-7:vdsm-common-0:4.30.13-4.el7ev.noarch | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-RHEV-4-Agents-7:vdsm-gluster-0:4.30.13-4.el7ev.ppc64le | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-RHEV-4-Agents-7:vdsm-gluster-0:4.30.13-4.el7ev.x86_64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-RHEV-4-Agents-7:vdsm-hook-checkips-0:4.30.13-4.el7ev.ppc64le | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-RHEV-4-Agents-7:vdsm-hook-checkips-0:4.30.13-4.el7ev.x86_64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-RHEV-4-Agents-7:vdsm-hook-cpuflags-0:4.30.13-4.el7ev.noarch | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-RHEV-4-Agents-7:vdsm-hook-ethtool-options-0:4.30.13-4.el7ev.noarch | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-RHEV-4-Agents-7:vdsm-hook-extra-ipv4-addrs-0:4.30.13-4.el7ev.ppc64le | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-RHEV-4-Agents-7:vdsm-hook-extra-ipv4-addrs-0:4.30.13-4.el7ev.x86_64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-RHEV-4-Agents-7:vdsm-hook-fcoe-0:4.30.13-4.el7ev.noarch | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-RHEV-4-Agents-7:vdsm-hook-localdisk-0:4.30.13-4.el7ev.noarch | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-RHEV-4-Agents-7:vdsm-hook-macspoof-0:4.30.13-4.el7ev.noarch | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-RHEV-4-Agents-7:vdsm-hook-nestedvt-0:4.30.13-4.el7ev.noarch | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-RHEV-4-Agents-7:vdsm-hook-openstacknet-0:4.30.13-4.el7ev.noarch | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-RHEV-4-Agents-7:vdsm-hook-vhostmd-0:4.30.13-4.el7ev.noarch | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-RHEV-4-Agents-7:vdsm-hook-vmfex-dev-0:4.30.13-4.el7ev.noarch | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-RHEV-4-Agents-7:vdsm-http-0:4.30.13-4.el7ev.noarch | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-RHEV-4-Agents-7:vdsm-jsonrpc-0:4.30.13-4.el7ev.noarch | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-RHEV-4-Agents-7:vdsm-network-0:4.30.13-4.el7ev.ppc64le | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-RHEV-4-Agents-7:vdsm-network-0:4.30.13-4.el7ev.x86_64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-RHEV-4-Agents-7:vdsm-python-0:4.30.13-4.el7ev.noarch | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-RHEV-4-Agents-7:vdsm-yajsonrpc-0:4.30.13-4.el7ev.noarch | — |
Vendor Fix
fix
|
Threats
Impact
Important
Uncacheable memory on some microprocessors utilizing speculative execution may allow an authenticated user to potentially enable information disclosure via a side channel with local access.
CWE-515 - Covert Storage ChannelAffected products
Fixed
27 products
| Product | Identifier | Version | Remediation |
|---|---|---|---|
| Unresolved product id: 7Server-RHEV-4-Agents-7:vdsm-0:4.30.13-4.el7ev.ppc64le | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-RHEV-4-Agents-7:vdsm-0:4.30.13-4.el7ev.src | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-RHEV-4-Agents-7:vdsm-0:4.30.13-4.el7ev.x86_64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-RHEV-4-Agents-7:vdsm-api-0:4.30.13-4.el7ev.noarch | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-RHEV-4-Agents-7:vdsm-client-0:4.30.13-4.el7ev.noarch | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-RHEV-4-Agents-7:vdsm-common-0:4.30.13-4.el7ev.noarch | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-RHEV-4-Agents-7:vdsm-gluster-0:4.30.13-4.el7ev.ppc64le | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-RHEV-4-Agents-7:vdsm-gluster-0:4.30.13-4.el7ev.x86_64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-RHEV-4-Agents-7:vdsm-hook-checkips-0:4.30.13-4.el7ev.ppc64le | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-RHEV-4-Agents-7:vdsm-hook-checkips-0:4.30.13-4.el7ev.x86_64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-RHEV-4-Agents-7:vdsm-hook-cpuflags-0:4.30.13-4.el7ev.noarch | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-RHEV-4-Agents-7:vdsm-hook-ethtool-options-0:4.30.13-4.el7ev.noarch | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-RHEV-4-Agents-7:vdsm-hook-extra-ipv4-addrs-0:4.30.13-4.el7ev.ppc64le | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-RHEV-4-Agents-7:vdsm-hook-extra-ipv4-addrs-0:4.30.13-4.el7ev.x86_64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-RHEV-4-Agents-7:vdsm-hook-fcoe-0:4.30.13-4.el7ev.noarch | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-RHEV-4-Agents-7:vdsm-hook-localdisk-0:4.30.13-4.el7ev.noarch | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-RHEV-4-Agents-7:vdsm-hook-macspoof-0:4.30.13-4.el7ev.noarch | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-RHEV-4-Agents-7:vdsm-hook-nestedvt-0:4.30.13-4.el7ev.noarch | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-RHEV-4-Agents-7:vdsm-hook-openstacknet-0:4.30.13-4.el7ev.noarch | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-RHEV-4-Agents-7:vdsm-hook-vhostmd-0:4.30.13-4.el7ev.noarch | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-RHEV-4-Agents-7:vdsm-hook-vmfex-dev-0:4.30.13-4.el7ev.noarch | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-RHEV-4-Agents-7:vdsm-http-0:4.30.13-4.el7ev.noarch | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-RHEV-4-Agents-7:vdsm-jsonrpc-0:4.30.13-4.el7ev.noarch | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-RHEV-4-Agents-7:vdsm-network-0:4.30.13-4.el7ev.ppc64le | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-RHEV-4-Agents-7:vdsm-network-0:4.30.13-4.el7ev.x86_64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-RHEV-4-Agents-7:vdsm-python-0:4.30.13-4.el7ev.noarch | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-RHEV-4-Agents-7:vdsm-yajsonrpc-0:4.30.13-4.el7ev.noarch | — |
Vendor Fix
fix
|
Threats
Impact
Moderate
References
26 references
{
"document": {
"aggregate_severity": {
"namespace": "https://access.redhat.com/security/updates/classification/",
"text": "Important"
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"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/"
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},
"lang": "en",
"notes": [
{
"category": "summary",
"text": "An update for vdsm is now available for Red Hat Virtualization 4 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 VDSM service is required by a Virtualization Manager to manage the Linux hosts. VDSM manages and monitors the host\u0027s storage, memory and networks as well as virtual machine creation, other host administration tasks, statistics gathering, and log collection.\n\nSecurity Fix(es):\n\n* A flaw was found in the implementation of the \"fill buffer\", a mechanism used by modern CPUs when a cache-miss is made on L1 CPU cache. If an attacker can generate a load operation that would create a page fault, the execution will continue speculatively with incorrect data from the fill buffer while the data is fetched from higher level caches. This response time can be measured to infer data in the fill buffer. (CVE-2018-12130)\n\n* Modern Intel microprocessors implement hardware-level micro-optimizations to improve the performance of writing data back to CPU caches. The write operation is split into STA (STore Address) and STD (STore Data) sub-operations. These sub-operations allow the processor to hand-off address generation logic into these sub-operations for optimized writes. Both of these sub-operations write to a shared distributed processor structure called the \u0027processor store buffer\u0027. As a result, an unprivileged attacker could use this flaw to read private data resident within the CPU\u0027s processor store buffer. (CVE-2018-12126)\n\n* Microprocessors use a \u2018load port\u2019 subcomponent to perform load operations from memory or IO. During a load operation, the load port receives data from the memory or IO subsystem and then provides the data to the CPU registers and operations in the CPU\u2019s pipelines. Stale load operations results are stored in the \u0027load port\u0027 table until overwritten by newer operations. Certain load-port operations triggered by an attacker can be used to reveal data about previous stale requests leaking data back to the attacker via a timing side-channel. (CVE-2018-12127)\n\n* Uncacheable memory on some microprocessors utilizing speculative execution may allow an authenticated user to potentially enable information disclosure via a side channel with local access. (CVE-2019-11091)\n\nFor 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.",
"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": {
"category": "vendor",
"contact_details": "https://access.redhat.com/security/team/contact/",
"issuing_authority": "Red Hat Product Security is responsible for vulnerability handling across all Red Hat products and services.",
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"references": [
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"summary": "https://access.redhat.com/errata/RHSA-2019:1203",
"url": "https://access.redhat.com/errata/RHSA-2019:1203"
},
{
"category": "external",
"summary": "https://access.redhat.com/security/vulnerabilities/mds",
"url": "https://access.redhat.com/security/vulnerabilities/mds"
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{
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"summary": "1705312",
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"summary": "Canonical URL",
"url": "https://security.access.redhat.com/data/csaf/v2/advisories/2019/rhsa-2019_1203.json"
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],
"title": "Red Hat Security Advisory: vdsm security update",
"tracking": {
"current_release_date": "2026-05-28T20:36:27+00:00",
"generator": {
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"engine": {
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"id": "RHSA-2019:1203",
"initial_release_date": "2019-05-14T21:10:30+00:00",
"revision_history": [
{
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"number": "1",
"summary": "Initial version"
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{
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"number": "2",
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],
"status": "final",
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"product_tree": {
"branches": [
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{
"branches": [
{
"category": "product_name",
"name": "Red Hat Virtualization 4 Management Agent for RHEL 7 Hosts",
"product": {
"name": "Red Hat Virtualization 4 Management Agent for RHEL 7 Hosts",
"product_id": "7Server-RHEV-4-Agents-7",
"product_identification_helper": {
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],
"category": "product_family",
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},
{
"branches": [
{
"category": "product_version",
"name": "vdsm-hook-vmfex-dev-0:4.30.13-4.el7ev.noarch",
"product": {
"name": "vdsm-hook-vmfex-dev-0:4.30.13-4.el7ev.noarch",
"product_id": "vdsm-hook-vmfex-dev-0:4.30.13-4.el7ev.noarch",
"product_identification_helper": {
"purl": "pkg:rpm/redhat/vdsm-hook-vmfex-dev@4.30.13-4.el7ev?arch=noarch"
}
}
},
{
"category": "product_version",
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},
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},
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"title": "Vulnerability description"
},
{
"category": "summary",
"text": "hardware: Microarchitectural Fill Buffer Data Sampling (MFBDS)",
"title": "Vulnerability summary"
},
{
"category": "other",
"text": "Red Hat Product Security is aware of this issue. Updates will be released as they become available. For additional information, please refer to the \u0027Vulnerability Response\u0027 URL.",
"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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},
{
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{
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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"
}
],
"product_status": {
"fixed": [
"7Server-RHEV-4-Agents-7:vdsm-0:4.30.13-4.el7ev.ppc64le",
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"7Server-RHEV-4-Agents-7:vdsm-hook-fcoe-0:4.30.13-4.el7ev.noarch",
"7Server-RHEV-4-Agents-7:vdsm-hook-localdisk-0:4.30.13-4.el7ev.noarch",
"7Server-RHEV-4-Agents-7:vdsm-hook-macspoof-0:4.30.13-4.el7ev.noarch",
"7Server-RHEV-4-Agents-7:vdsm-hook-nestedvt-0:4.30.13-4.el7ev.noarch",
"7Server-RHEV-4-Agents-7:vdsm-hook-openstacknet-0:4.30.13-4.el7ev.noarch",
"7Server-RHEV-4-Agents-7:vdsm-hook-vhostmd-0:4.30.13-4.el7ev.noarch",
"7Server-RHEV-4-Agents-7:vdsm-hook-vmfex-dev-0:4.30.13-4.el7ev.noarch",
"7Server-RHEV-4-Agents-7:vdsm-http-0:4.30.13-4.el7ev.noarch",
"7Server-RHEV-4-Agents-7:vdsm-jsonrpc-0:4.30.13-4.el7ev.noarch",
"7Server-RHEV-4-Agents-7:vdsm-network-0:4.30.13-4.el7ev.ppc64le",
"7Server-RHEV-4-Agents-7:vdsm-network-0:4.30.13-4.el7ev.x86_64",
"7Server-RHEV-4-Agents-7:vdsm-python-0:4.30.13-4.el7ev.noarch",
"7Server-RHEV-4-Agents-7:vdsm-yajsonrpc-0:4.30.13-4.el7ev.noarch"
]
},
"references": [
{
"category": "self",
"summary": "Canonical URL",
"url": "https://access.redhat.com/security/cve/CVE-2019-11091"
},
{
"category": "external",
"summary": "RHBZ#1705312",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=1705312"
},
{
"category": "external",
"summary": "RHSB-mds",
"url": "https://access.redhat.com/security/vulnerabilities/mds"
},
{
"category": "external",
"summary": "https://www.cve.org/CVERecord?id=CVE-2019-11091",
"url": "https://www.cve.org/CVERecord?id=CVE-2019-11091"
},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2019-11091",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2019-11091"
}
],
"release_date": "2019-05-14T17:00:00+00:00",
"remediations": [
{
"category": "vendor_fix",
"date": "2019-05-14T21:10:30+00:00",
"details": "For details on how to apply this update, which includes the changes described in this advisory, refer to:\n\nhttps://access.redhat.com/articles/2974891",
"product_ids": [
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"7Server-RHEV-4-Agents-7:vdsm-0:4.30.13-4.el7ev.src",
"7Server-RHEV-4-Agents-7:vdsm-0:4.30.13-4.el7ev.x86_64",
"7Server-RHEV-4-Agents-7:vdsm-api-0:4.30.13-4.el7ev.noarch",
"7Server-RHEV-4-Agents-7:vdsm-client-0:4.30.13-4.el7ev.noarch",
"7Server-RHEV-4-Agents-7:vdsm-common-0:4.30.13-4.el7ev.noarch",
"7Server-RHEV-4-Agents-7:vdsm-gluster-0:4.30.13-4.el7ev.ppc64le",
"7Server-RHEV-4-Agents-7:vdsm-gluster-0:4.30.13-4.el7ev.x86_64",
"7Server-RHEV-4-Agents-7:vdsm-hook-checkips-0:4.30.13-4.el7ev.ppc64le",
"7Server-RHEV-4-Agents-7:vdsm-hook-checkips-0:4.30.13-4.el7ev.x86_64",
"7Server-RHEV-4-Agents-7:vdsm-hook-cpuflags-0:4.30.13-4.el7ev.noarch",
"7Server-RHEV-4-Agents-7:vdsm-hook-ethtool-options-0:4.30.13-4.el7ev.noarch",
"7Server-RHEV-4-Agents-7:vdsm-hook-extra-ipv4-addrs-0:4.30.13-4.el7ev.ppc64le",
"7Server-RHEV-4-Agents-7:vdsm-hook-extra-ipv4-addrs-0:4.30.13-4.el7ev.x86_64",
"7Server-RHEV-4-Agents-7:vdsm-hook-fcoe-0:4.30.13-4.el7ev.noarch",
"7Server-RHEV-4-Agents-7:vdsm-hook-localdisk-0:4.30.13-4.el7ev.noarch",
"7Server-RHEV-4-Agents-7:vdsm-hook-macspoof-0:4.30.13-4.el7ev.noarch",
"7Server-RHEV-4-Agents-7:vdsm-hook-nestedvt-0:4.30.13-4.el7ev.noarch",
"7Server-RHEV-4-Agents-7:vdsm-hook-openstacknet-0:4.30.13-4.el7ev.noarch",
"7Server-RHEV-4-Agents-7:vdsm-hook-vhostmd-0:4.30.13-4.el7ev.noarch",
"7Server-RHEV-4-Agents-7:vdsm-hook-vmfex-dev-0:4.30.13-4.el7ev.noarch",
"7Server-RHEV-4-Agents-7:vdsm-http-0:4.30.13-4.el7ev.noarch",
"7Server-RHEV-4-Agents-7:vdsm-jsonrpc-0:4.30.13-4.el7ev.noarch",
"7Server-RHEV-4-Agents-7:vdsm-network-0:4.30.13-4.el7ev.ppc64le",
"7Server-RHEV-4-Agents-7:vdsm-network-0:4.30.13-4.el7ev.x86_64",
"7Server-RHEV-4-Agents-7:vdsm-python-0:4.30.13-4.el7ev.noarch",
"7Server-RHEV-4-Agents-7:vdsm-yajsonrpc-0:4.30.13-4.el7ev.noarch"
],
"restart_required": {
"category": "none"
},
"url": "https://access.redhat.com/errata/RHSA-2019:1203"
}
],
"scores": [
{
"cvss_v3": {
"attackComplexity": "LOW",
"attackVector": "LOCAL",
"availabilityImpact": "NONE",
"baseScore": 3.8,
"baseSeverity": "LOW",
"confidentialityImpact": "LOW",
"integrityImpact": "NONE",
"privilegesRequired": "LOW",
"scope": "CHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:L/I:N/A:N",
"version": "3.0"
},
"products": [
"7Server-RHEV-4-Agents-7:vdsm-0:4.30.13-4.el7ev.ppc64le",
"7Server-RHEV-4-Agents-7:vdsm-0:4.30.13-4.el7ev.src",
"7Server-RHEV-4-Agents-7:vdsm-0:4.30.13-4.el7ev.x86_64",
"7Server-RHEV-4-Agents-7:vdsm-api-0:4.30.13-4.el7ev.noarch",
"7Server-RHEV-4-Agents-7:vdsm-client-0:4.30.13-4.el7ev.noarch",
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"7Server-RHEV-4-Agents-7:vdsm-hook-extra-ipv4-addrs-0:4.30.13-4.el7ev.ppc64le",
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"7Server-RHEV-4-Agents-7:vdsm-hook-localdisk-0:4.30.13-4.el7ev.noarch",
"7Server-RHEV-4-Agents-7:vdsm-hook-macspoof-0:4.30.13-4.el7ev.noarch",
"7Server-RHEV-4-Agents-7:vdsm-hook-nestedvt-0:4.30.13-4.el7ev.noarch",
"7Server-RHEV-4-Agents-7:vdsm-hook-openstacknet-0:4.30.13-4.el7ev.noarch",
"7Server-RHEV-4-Agents-7:vdsm-hook-vhostmd-0:4.30.13-4.el7ev.noarch",
"7Server-RHEV-4-Agents-7:vdsm-hook-vmfex-dev-0:4.30.13-4.el7ev.noarch",
"7Server-RHEV-4-Agents-7:vdsm-http-0:4.30.13-4.el7ev.noarch",
"7Server-RHEV-4-Agents-7:vdsm-jsonrpc-0:4.30.13-4.el7ev.noarch",
"7Server-RHEV-4-Agents-7:vdsm-network-0:4.30.13-4.el7ev.ppc64le",
"7Server-RHEV-4-Agents-7:vdsm-network-0:4.30.13-4.el7ev.x86_64",
"7Server-RHEV-4-Agents-7:vdsm-python-0:4.30.13-4.el7ev.noarch",
"7Server-RHEV-4-Agents-7:vdsm-yajsonrpc-0:4.30.13-4.el7ev.noarch"
]
}
],
"threats": [
{
"category": "impact",
"details": "Moderate"
}
],
"title": "hardware: Microarchitectural Data Sampling Uncacheable Memory (MDSUM)"
}
]
}
RHSA-2019:1204
Vulnerability from csaf_redhat - Published: 2019-05-14 21:10 - Updated: 2026-05-28 20:36Summary
Red Hat Security Advisory: vdsm security update
Severity
Important
Notes
Topic: An update for vdsm is now available for Red Hat Virtualization 4.2 for Red Hat Enterprise Linux 7.6 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 VDSM service is required by a Virtualization Manager to manage the Linux hosts. VDSM manages and monitors the host's storage, memory and networks as well as virtual machine creation, other host administration tasks, statistics gathering, and log collection.
Security Fix(es):
* A flaw was found in the implementation of the "fill buffer", a mechanism used by modern CPUs when a cache-miss is made on L1 CPU cache. If an attacker can generate a load operation that would create a page fault, the execution will continue speculatively with incorrect data from the fill buffer while the data is fetched from higher level caches. This response time can be measured to infer data in the fill buffer. (CVE-2018-12130)
* Modern Intel microprocessors implement hardware-level micro-optimizations to improve the performance of writing data back to CPU caches. The write operation is split into STA (STore Address) and STD (STore Data) sub-operations. These sub-operations allow the processor to hand-off address generation logic into these sub-operations for optimized writes. Both of these sub-operations write to a shared distributed processor structure called the 'processor store buffer'. As a result, an unprivileged attacker could use this flaw to read private data resident within the CPU's processor store buffer. (CVE-2018-12126)
* Microprocessors use a ‘load port’ subcomponent to perform load operations from memory or IO. During a load operation, the load port receives data from the memory or IO subsystem and then provides the data to the CPU registers and operations in the CPU’s pipelines. Stale load operations results are stored in the 'load port' table until overwritten by newer operations. Certain load-port operations triggered by an attacker can be used to reveal data about previous stale requests leaking data back to the attacker via a timing side-channel. (CVE-2018-12127)
* Uncacheable memory on some microprocessors utilizing speculative execution may allow an authenticated user to potentially enable information disclosure via a side channel with local access. (CVE-2019-11091)
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.
Modern Intel microprocessors implement hardware-level micro-optimizations to improve the performance of writing data back to CPU caches. The write operation is split into STA (STore Address) and STD (STore Data) sub-operations. These sub-operations allow the processor to hand-off address generation logic into these sub-operations for optimized writes. Both of these sub-operations write to a shared distributed processor structure called the 'processor store buffer'. As a result, an unprivileged attacker could use this flaw to read private data resident within the CPU's processor store buffer.
6.5 (Medium)
Affected products
Fixed
27 products
| Product | Identifier | Version | Remediation |
|---|---|---|---|
| Unresolved product id: 7Server-7.6.EUS-RHV-4.2-Agents-eus:vdsm-0:4.20.49-1.el7ev.ppc64le | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-7.6.EUS-RHV-4.2-Agents-eus:vdsm-0:4.20.49-1.el7ev.src | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-7.6.EUS-RHV-4.2-Agents-eus:vdsm-0:4.20.49-1.el7ev.x86_64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-7.6.EUS-RHV-4.2-Agents-eus:vdsm-api-0:4.20.49-1.el7ev.noarch | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-7.6.EUS-RHV-4.2-Agents-eus:vdsm-client-0:4.20.49-1.el7ev.noarch | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-7.6.EUS-RHV-4.2-Agents-eus:vdsm-common-0:4.20.49-1.el7ev.noarch | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-7.6.EUS-RHV-4.2-Agents-eus:vdsm-gluster-0:4.20.49-1.el7ev.ppc64le | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-7.6.EUS-RHV-4.2-Agents-eus:vdsm-gluster-0:4.20.49-1.el7ev.x86_64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-7.6.EUS-RHV-4.2-Agents-eus:vdsm-hook-checkips-0:4.20.49-1.el7ev.ppc64le | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-7.6.EUS-RHV-4.2-Agents-eus:vdsm-hook-checkips-0:4.20.49-1.el7ev.x86_64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-7.6.EUS-RHV-4.2-Agents-eus:vdsm-hook-cpuflags-0:4.20.49-1.el7ev.noarch | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-7.6.EUS-RHV-4.2-Agents-eus:vdsm-hook-ethtool-options-0:4.20.49-1.el7ev.noarch | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-7.6.EUS-RHV-4.2-Agents-eus:vdsm-hook-extra-ipv4-addrs-0:4.20.49-1.el7ev.ppc64le | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-7.6.EUS-RHV-4.2-Agents-eus:vdsm-hook-extra-ipv4-addrs-0:4.20.49-1.el7ev.x86_64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-7.6.EUS-RHV-4.2-Agents-eus:vdsm-hook-fcoe-0:4.20.49-1.el7ev.noarch | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-7.6.EUS-RHV-4.2-Agents-eus:vdsm-hook-localdisk-0:4.20.49-1.el7ev.noarch | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-7.6.EUS-RHV-4.2-Agents-eus:vdsm-hook-macspoof-0:4.20.49-1.el7ev.noarch | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-7.6.EUS-RHV-4.2-Agents-eus:vdsm-hook-nestedvt-0:4.20.49-1.el7ev.noarch | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-7.6.EUS-RHV-4.2-Agents-eus:vdsm-hook-openstacknet-0:4.20.49-1.el7ev.noarch | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-7.6.EUS-RHV-4.2-Agents-eus:vdsm-hook-vhostmd-0:4.20.49-1.el7ev.noarch | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-7.6.EUS-RHV-4.2-Agents-eus:vdsm-hook-vmfex-dev-0:4.20.49-1.el7ev.noarch | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-7.6.EUS-RHV-4.2-Agents-eus:vdsm-http-0:4.20.49-1.el7ev.noarch | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-7.6.EUS-RHV-4.2-Agents-eus:vdsm-jsonrpc-0:4.20.49-1.el7ev.noarch | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-7.6.EUS-RHV-4.2-Agents-eus:vdsm-network-0:4.20.49-1.el7ev.ppc64le | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-7.6.EUS-RHV-4.2-Agents-eus:vdsm-network-0:4.20.49-1.el7ev.x86_64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-7.6.EUS-RHV-4.2-Agents-eus:vdsm-python-0:4.20.49-1.el7ev.noarch | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-7.6.EUS-RHV-4.2-Agents-eus:vdsm-yajsonrpc-0:4.20.49-1.el7ev.noarch | — |
Vendor Fix
fix
|
Threats
Impact
Moderate
Microprocessors use a ‘load port’ subcomponent to perform load operations from memory or IO. During a load operation, the load port receives data from the memory or IO subsystem and then provides the data to the CPU registers and operations in the CPU’s pipelines. Stale load operations results are stored in the 'load port' table until overwritten by newer operations. Certain load-port operations triggered by an attacker can be used to reveal data about previous stale requests leaking data back to the attacker via a timing side-channel.
6.5 (Medium)
Affected products
Fixed
27 products
| Product | Identifier | Version | Remediation |
|---|---|---|---|
| Unresolved product id: 7Server-7.6.EUS-RHV-4.2-Agents-eus:vdsm-0:4.20.49-1.el7ev.ppc64le | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-7.6.EUS-RHV-4.2-Agents-eus:vdsm-0:4.20.49-1.el7ev.src | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-7.6.EUS-RHV-4.2-Agents-eus:vdsm-0:4.20.49-1.el7ev.x86_64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-7.6.EUS-RHV-4.2-Agents-eus:vdsm-api-0:4.20.49-1.el7ev.noarch | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-7.6.EUS-RHV-4.2-Agents-eus:vdsm-client-0:4.20.49-1.el7ev.noarch | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-7.6.EUS-RHV-4.2-Agents-eus:vdsm-common-0:4.20.49-1.el7ev.noarch | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-7.6.EUS-RHV-4.2-Agents-eus:vdsm-gluster-0:4.20.49-1.el7ev.ppc64le | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-7.6.EUS-RHV-4.2-Agents-eus:vdsm-gluster-0:4.20.49-1.el7ev.x86_64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-7.6.EUS-RHV-4.2-Agents-eus:vdsm-hook-checkips-0:4.20.49-1.el7ev.ppc64le | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-7.6.EUS-RHV-4.2-Agents-eus:vdsm-hook-checkips-0:4.20.49-1.el7ev.x86_64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-7.6.EUS-RHV-4.2-Agents-eus:vdsm-hook-cpuflags-0:4.20.49-1.el7ev.noarch | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-7.6.EUS-RHV-4.2-Agents-eus:vdsm-hook-ethtool-options-0:4.20.49-1.el7ev.noarch | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-7.6.EUS-RHV-4.2-Agents-eus:vdsm-hook-extra-ipv4-addrs-0:4.20.49-1.el7ev.ppc64le | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-7.6.EUS-RHV-4.2-Agents-eus:vdsm-hook-extra-ipv4-addrs-0:4.20.49-1.el7ev.x86_64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-7.6.EUS-RHV-4.2-Agents-eus:vdsm-hook-fcoe-0:4.20.49-1.el7ev.noarch | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-7.6.EUS-RHV-4.2-Agents-eus:vdsm-hook-localdisk-0:4.20.49-1.el7ev.noarch | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-7.6.EUS-RHV-4.2-Agents-eus:vdsm-hook-macspoof-0:4.20.49-1.el7ev.noarch | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-7.6.EUS-RHV-4.2-Agents-eus:vdsm-hook-nestedvt-0:4.20.49-1.el7ev.noarch | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-7.6.EUS-RHV-4.2-Agents-eus:vdsm-hook-openstacknet-0:4.20.49-1.el7ev.noarch | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-7.6.EUS-RHV-4.2-Agents-eus:vdsm-hook-vhostmd-0:4.20.49-1.el7ev.noarch | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-7.6.EUS-RHV-4.2-Agents-eus:vdsm-hook-vmfex-dev-0:4.20.49-1.el7ev.noarch | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-7.6.EUS-RHV-4.2-Agents-eus:vdsm-http-0:4.20.49-1.el7ev.noarch | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-7.6.EUS-RHV-4.2-Agents-eus:vdsm-jsonrpc-0:4.20.49-1.el7ev.noarch | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-7.6.EUS-RHV-4.2-Agents-eus:vdsm-network-0:4.20.49-1.el7ev.ppc64le | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-7.6.EUS-RHV-4.2-Agents-eus:vdsm-network-0:4.20.49-1.el7ev.x86_64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-7.6.EUS-RHV-4.2-Agents-eus:vdsm-python-0:4.20.49-1.el7ev.noarch | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-7.6.EUS-RHV-4.2-Agents-eus:vdsm-yajsonrpc-0:4.20.49-1.el7ev.noarch | — |
Vendor Fix
fix
|
Threats
Impact
Moderate
A flaw was found in the implementation of the "fill buffer", a mechanism used by modern CPUs when a cache-miss is made on L1 CPU cache. If an attacker can generate a load operation that would create a page fault, the execution will continue speculatively with incorrect data from the fill buffer while the data is fetched from higher level caches. This response time can be measured to infer data in the fill buffer.
6.2 (Medium)
Affected products
Fixed
27 products
| Product | Identifier | Version | Remediation |
|---|---|---|---|
| Unresolved product id: 7Server-7.6.EUS-RHV-4.2-Agents-eus:vdsm-0:4.20.49-1.el7ev.ppc64le | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-7.6.EUS-RHV-4.2-Agents-eus:vdsm-0:4.20.49-1.el7ev.src | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-7.6.EUS-RHV-4.2-Agents-eus:vdsm-0:4.20.49-1.el7ev.x86_64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-7.6.EUS-RHV-4.2-Agents-eus:vdsm-api-0:4.20.49-1.el7ev.noarch | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-7.6.EUS-RHV-4.2-Agents-eus:vdsm-client-0:4.20.49-1.el7ev.noarch | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-7.6.EUS-RHV-4.2-Agents-eus:vdsm-common-0:4.20.49-1.el7ev.noarch | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-7.6.EUS-RHV-4.2-Agents-eus:vdsm-gluster-0:4.20.49-1.el7ev.ppc64le | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-7.6.EUS-RHV-4.2-Agents-eus:vdsm-gluster-0:4.20.49-1.el7ev.x86_64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-7.6.EUS-RHV-4.2-Agents-eus:vdsm-hook-checkips-0:4.20.49-1.el7ev.ppc64le | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-7.6.EUS-RHV-4.2-Agents-eus:vdsm-hook-checkips-0:4.20.49-1.el7ev.x86_64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-7.6.EUS-RHV-4.2-Agents-eus:vdsm-hook-cpuflags-0:4.20.49-1.el7ev.noarch | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-7.6.EUS-RHV-4.2-Agents-eus:vdsm-hook-ethtool-options-0:4.20.49-1.el7ev.noarch | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-7.6.EUS-RHV-4.2-Agents-eus:vdsm-hook-extra-ipv4-addrs-0:4.20.49-1.el7ev.ppc64le | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-7.6.EUS-RHV-4.2-Agents-eus:vdsm-hook-extra-ipv4-addrs-0:4.20.49-1.el7ev.x86_64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-7.6.EUS-RHV-4.2-Agents-eus:vdsm-hook-fcoe-0:4.20.49-1.el7ev.noarch | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-7.6.EUS-RHV-4.2-Agents-eus:vdsm-hook-localdisk-0:4.20.49-1.el7ev.noarch | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-7.6.EUS-RHV-4.2-Agents-eus:vdsm-hook-macspoof-0:4.20.49-1.el7ev.noarch | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-7.6.EUS-RHV-4.2-Agents-eus:vdsm-hook-nestedvt-0:4.20.49-1.el7ev.noarch | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-7.6.EUS-RHV-4.2-Agents-eus:vdsm-hook-openstacknet-0:4.20.49-1.el7ev.noarch | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-7.6.EUS-RHV-4.2-Agents-eus:vdsm-hook-vhostmd-0:4.20.49-1.el7ev.noarch | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-7.6.EUS-RHV-4.2-Agents-eus:vdsm-hook-vmfex-dev-0:4.20.49-1.el7ev.noarch | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-7.6.EUS-RHV-4.2-Agents-eus:vdsm-http-0:4.20.49-1.el7ev.noarch | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-7.6.EUS-RHV-4.2-Agents-eus:vdsm-jsonrpc-0:4.20.49-1.el7ev.noarch | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-7.6.EUS-RHV-4.2-Agents-eus:vdsm-network-0:4.20.49-1.el7ev.ppc64le | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-7.6.EUS-RHV-4.2-Agents-eus:vdsm-network-0:4.20.49-1.el7ev.x86_64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-7.6.EUS-RHV-4.2-Agents-eus:vdsm-python-0:4.20.49-1.el7ev.noarch | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-7.6.EUS-RHV-4.2-Agents-eus:vdsm-yajsonrpc-0:4.20.49-1.el7ev.noarch | — |
Vendor Fix
fix
|
Threats
Impact
Important
Uncacheable memory on some microprocessors utilizing speculative execution may allow an authenticated user to potentially enable information disclosure via a side channel with local access.
CWE-515 - Covert Storage ChannelAffected products
Fixed
27 products
| Product | Identifier | Version | Remediation |
|---|---|---|---|
| Unresolved product id: 7Server-7.6.EUS-RHV-4.2-Agents-eus:vdsm-0:4.20.49-1.el7ev.ppc64le | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-7.6.EUS-RHV-4.2-Agents-eus:vdsm-0:4.20.49-1.el7ev.src | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-7.6.EUS-RHV-4.2-Agents-eus:vdsm-0:4.20.49-1.el7ev.x86_64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-7.6.EUS-RHV-4.2-Agents-eus:vdsm-api-0:4.20.49-1.el7ev.noarch | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-7.6.EUS-RHV-4.2-Agents-eus:vdsm-client-0:4.20.49-1.el7ev.noarch | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-7.6.EUS-RHV-4.2-Agents-eus:vdsm-common-0:4.20.49-1.el7ev.noarch | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-7.6.EUS-RHV-4.2-Agents-eus:vdsm-gluster-0:4.20.49-1.el7ev.ppc64le | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-7.6.EUS-RHV-4.2-Agents-eus:vdsm-gluster-0:4.20.49-1.el7ev.x86_64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-7.6.EUS-RHV-4.2-Agents-eus:vdsm-hook-checkips-0:4.20.49-1.el7ev.ppc64le | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-7.6.EUS-RHV-4.2-Agents-eus:vdsm-hook-checkips-0:4.20.49-1.el7ev.x86_64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-7.6.EUS-RHV-4.2-Agents-eus:vdsm-hook-cpuflags-0:4.20.49-1.el7ev.noarch | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-7.6.EUS-RHV-4.2-Agents-eus:vdsm-hook-ethtool-options-0:4.20.49-1.el7ev.noarch | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-7.6.EUS-RHV-4.2-Agents-eus:vdsm-hook-extra-ipv4-addrs-0:4.20.49-1.el7ev.ppc64le | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-7.6.EUS-RHV-4.2-Agents-eus:vdsm-hook-extra-ipv4-addrs-0:4.20.49-1.el7ev.x86_64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-7.6.EUS-RHV-4.2-Agents-eus:vdsm-hook-fcoe-0:4.20.49-1.el7ev.noarch | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-7.6.EUS-RHV-4.2-Agents-eus:vdsm-hook-localdisk-0:4.20.49-1.el7ev.noarch | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-7.6.EUS-RHV-4.2-Agents-eus:vdsm-hook-macspoof-0:4.20.49-1.el7ev.noarch | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-7.6.EUS-RHV-4.2-Agents-eus:vdsm-hook-nestedvt-0:4.20.49-1.el7ev.noarch | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-7.6.EUS-RHV-4.2-Agents-eus:vdsm-hook-openstacknet-0:4.20.49-1.el7ev.noarch | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-7.6.EUS-RHV-4.2-Agents-eus:vdsm-hook-vhostmd-0:4.20.49-1.el7ev.noarch | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-7.6.EUS-RHV-4.2-Agents-eus:vdsm-hook-vmfex-dev-0:4.20.49-1.el7ev.noarch | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-7.6.EUS-RHV-4.2-Agents-eus:vdsm-http-0:4.20.49-1.el7ev.noarch | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-7.6.EUS-RHV-4.2-Agents-eus:vdsm-jsonrpc-0:4.20.49-1.el7ev.noarch | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-7.6.EUS-RHV-4.2-Agents-eus:vdsm-network-0:4.20.49-1.el7ev.ppc64le | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-7.6.EUS-RHV-4.2-Agents-eus:vdsm-network-0:4.20.49-1.el7ev.x86_64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-7.6.EUS-RHV-4.2-Agents-eus:vdsm-python-0:4.20.49-1.el7ev.noarch | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-7.6.EUS-RHV-4.2-Agents-eus:vdsm-yajsonrpc-0:4.20.49-1.el7ev.noarch | — |
Vendor Fix
fix
|
Threats
Impact
Moderate
References
26 references
{
"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 vdsm is now available for Red Hat Virtualization 4.2 for Red Hat Enterprise Linux 7.6 Extended Update Support.\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 VDSM service is required by a Virtualization Manager to manage the Linux hosts. VDSM manages and monitors the host\u0027s storage, memory and networks as well as virtual machine creation, other host administration tasks, statistics gathering, and log collection.\n\nSecurity Fix(es):\n\n* A flaw was found in the implementation of the \"fill buffer\", a mechanism used by modern CPUs when a cache-miss is made on L1 CPU cache. If an attacker can generate a load operation that would create a page fault, the execution will continue speculatively with incorrect data from the fill buffer while the data is fetched from higher level caches. This response time can be measured to infer data in the fill buffer. (CVE-2018-12130)\n\n* Modern Intel microprocessors implement hardware-level micro-optimizations to improve the performance of writing data back to CPU caches. The write operation is split into STA (STore Address) and STD (STore Data) sub-operations. These sub-operations allow the processor to hand-off address generation logic into these sub-operations for optimized writes. Both of these sub-operations write to a shared distributed processor structure called the \u0027processor store buffer\u0027. As a result, an unprivileged attacker could use this flaw to read private data resident within the CPU\u0027s processor store buffer. (CVE-2018-12126)\n\n* Microprocessors use a \u2018load port\u2019 subcomponent to perform load operations from memory or IO. During a load operation, the load port receives data from the memory or IO subsystem and then provides the data to the CPU registers and operations in the CPU\u2019s pipelines. Stale load operations results are stored in the \u0027load port\u0027 table until overwritten by newer operations. Certain load-port operations triggered by an attacker can be used to reveal data about previous stale requests leaking data back to the attacker via a timing side-channel. (CVE-2018-12127)\n\n* Uncacheable memory on some microprocessors utilizing speculative execution may allow an authenticated user to potentially enable information disclosure via a side channel with local access. (CVE-2019-11091)\n\nFor 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.",
"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": {
"category": "vendor",
"contact_details": "https://access.redhat.com/security/team/contact/",
"issuing_authority": "Red Hat Product Security is responsible for vulnerability handling across all Red Hat products and services.",
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"namespace": "https://www.redhat.com"
},
"references": [
{
"category": "self",
"summary": "https://access.redhat.com/errata/RHSA-2019:1204",
"url": "https://access.redhat.com/errata/RHSA-2019:1204"
},
{
"category": "external",
"summary": "https://access.redhat.com/security/vulnerabilities/mds",
"url": "https://access.redhat.com/security/vulnerabilities/mds"
},
{
"category": "external",
"summary": "https://access.redhat.com/security/updates/classification/#important",
"url": "https://access.redhat.com/security/updates/classification/#important"
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{
"category": "external",
"summary": "1646781",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=1646781"
},
{
"category": "external",
"summary": "1646784",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=1646784"
},
{
"category": "external",
"summary": "1667782",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=1667782"
},
{
"category": "external",
"summary": "1705312",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=1705312"
},
{
"category": "self",
"summary": "Canonical URL",
"url": "https://security.access.redhat.com/data/csaf/v2/advisories/2019/rhsa-2019_1204.json"
}
],
"title": "Red Hat Security Advisory: vdsm security update",
"tracking": {
"current_release_date": "2026-05-28T20:36:28+00:00",
"generator": {
"date": "2026-05-28T20:36:28+00:00",
"engine": {
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"version": "4.8.1"
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},
"id": "RHSA-2019:1204",
"initial_release_date": "2019-05-14T21:10:40+00:00",
"revision_history": [
{
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"number": "1",
"summary": "Initial version"
},
{
"date": "2019-05-14T21:10:40+00:00",
"number": "2",
"summary": "Last updated version"
},
{
"date": "2026-05-28T20:36:28+00:00",
"number": "3",
"summary": "Last generated version"
}
],
"status": "final",
"version": "3"
}
},
"product_tree": {
"branches": [
{
"branches": [
{
"branches": [
{
"category": "product_name",
"name": "Red Hat Virtualization 4.2 Management Agent for RHEL 7.6 EUS Hosts",
"product": {
"name": "Red Hat Virtualization 4.2 Management Agent for RHEL 7.6 EUS Hosts",
"product_id": "7Server-7.6.EUS-RHV-4.2-Agents-eus",
"product_identification_helper": {
"cpe": "cpe:/o:redhat:enterprise_linux:7::hypervisor"
}
}
}
],
"category": "product_family",
"name": "Red Hat Virtualization"
},
{
"branches": [
{
"category": "product_version",
"name": "vdsm-hook-vhostmd-0:4.20.49-1.el7ev.noarch",
"product": {
"name": "vdsm-hook-vhostmd-0:4.20.49-1.el7ev.noarch",
"product_id": "vdsm-hook-vhostmd-0:4.20.49-1.el7ev.noarch",
"product_identification_helper": {
"purl": "pkg:rpm/redhat/vdsm-hook-vhostmd@4.20.49-1.el7ev?arch=noarch"
}
}
},
{
"category": "product_version",
"name": "vdsm-client-0:4.20.49-1.el7ev.noarch",
"product": {
"name": "vdsm-client-0:4.20.49-1.el7ev.noarch",
"product_id": "vdsm-client-0:4.20.49-1.el7ev.noarch",
"product_identification_helper": {
"purl": "pkg:rpm/redhat/vdsm-client@4.20.49-1.el7ev?arch=noarch"
}
}
},
{
"category": "product_version",
"name": "vdsm-jsonrpc-0:4.20.49-1.el7ev.noarch",
"product": {
"name": "vdsm-jsonrpc-0:4.20.49-1.el7ev.noarch",
"product_id": "vdsm-jsonrpc-0:4.20.49-1.el7ev.noarch",
"product_identification_helper": {
"purl": "pkg:rpm/redhat/vdsm-jsonrpc@4.20.49-1.el7ev?arch=noarch"
}
}
},
{
"category": "product_version",
"name": "vdsm-common-0:4.20.49-1.el7ev.noarch",
"product": {
"name": "vdsm-common-0:4.20.49-1.el7ev.noarch",
"product_id": "vdsm-common-0:4.20.49-1.el7ev.noarch",
"product_identification_helper": {
"purl": "pkg:rpm/redhat/vdsm-common@4.20.49-1.el7ev?arch=noarch"
}
}
},
{
"category": "product_version",
"name": "vdsm-hook-nestedvt-0:4.20.49-1.el7ev.noarch",
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"title": "Vulnerability description"
},
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},
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{
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{
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"integrityImpact": "NONE",
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"title": "hardware: Micro-architectural Load Port Data Sampling - Information Leak (MLPDS)"
},
{
"cve": "CVE-2018-12130",
"cwe": {
"id": "CWE-208",
"name": "Observable Timing Discrepancy"
},
"discovery_date": "2018-11-06T00:00:00+00:00",
"ids": [
{
"system_name": "Red Hat Bugzilla ID",
"text": "1646784"
}
],
"notes": [
{
"category": "description",
"text": "A flaw was found in the implementation of the \"fill buffer\", a mechanism used by modern CPUs when a cache-miss is made on L1 CPU cache. If an attacker can generate a load operation that would create a page fault, the execution will continue speculatively with incorrect data from the fill buffer while the data is fetched from higher level caches. This response time can be measured to infer data in the fill buffer.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "hardware: Microarchitectural Fill Buffer Data Sampling (MFBDS)",
"title": "Vulnerability summary"
},
{
"category": "other",
"text": "Red Hat Product Security is aware of this issue. Updates will be released as they become available. For additional information, please refer to the \u0027Vulnerability Response\u0027 URL.",
"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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"title": "hardware: Microarchitectural Fill Buffer Data Sampling (MFBDS)"
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{
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"cwe": {
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"name": "Covert Storage Channel"
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"ids": [
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],
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"title": "Vulnerability description"
},
{
"category": "summary",
"text": "hardware: Microarchitectural Data Sampling Uncacheable Memory (MDSUM)",
"title": "Vulnerability summary"
},
{
"category": "other",
"text": "Red Hat Product Security is aware of this issue. Updates will be released as they become available. For additional information, please refer to the \u0027Vulnerability Response\u0027 URL.",
"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.",
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}
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]
}
RHSA-2019:1205
Vulnerability from csaf_redhat - Published: 2019-05-14 21:10 - Updated: 2026-05-28 20:36Summary
Red Hat Security Advisory: rhvm-setup-plugins security update
Severity
Important
Notes
Topic: An update for rhvm-setup-plugins is now available for Red Hat Virtualization 4.3.
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 rhvm-setup-plugins package adds functionality exclusive only to Red Hat Virtualization Manager, and is not available for the upstream ovirt-engine. It includes the configuration of the Red Hat Support plugin, copying downstream-only artifacts to the ISO domain, and links to the knowledgebase and other support material.
Security Fix(es):
* A flaw was found in the implementation of the "fill buffer", a mechanism used by modern CPUs when a cache-miss is made on L1 CPU cache. If an attacker can generate a load operation that would create a page fault, the execution will continue speculatively with incorrect data from the fill buffer while the data is fetched from higher level caches. This response time can be measured to infer data in the fill buffer. (CVE-2018-12130)
* Modern Intel microprocessors implement hardware-level micro-optimizations to improve the performance of writing data back to CPU caches. The write operation is split into STA (STore Address) and STD (STore Data) sub-operations. These sub-operations allow the processor to hand-off address generation logic into these sub-operations for optimized writes. Both of these sub-operations write to a shared distributed processor structure called the 'processor store buffer'. As a result, an unprivileged attacker could use this flaw to read private data resident within the CPU's processor store buffer. (CVE-2018-12126)
* Microprocessors use a ‘load port’ subcomponent to perform load operations from memory or IO. During a load operation, the load port receives data from the memory or IO subsystem and then provides the data to the CPU registers and operations in the CPU’s pipelines. Stale load operations results are stored in the 'load port' table until overwritten by newer operations. Certain load-port operations triggered by an attacker can be used to reveal data about previous stale requests leaking data back to the attacker via a timing side-channel. (CVE-2018-12127)
* Uncacheable memory on some microprocessors utilizing speculative execution may allow an authenticated user to potentially enable information disclosure via a side channel with local access. (CVE-2019-11091)
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.
Modern Intel microprocessors implement hardware-level micro-optimizations to improve the performance of writing data back to CPU caches. The write operation is split into STA (STore Address) and STD (STore Data) sub-operations. These sub-operations allow the processor to hand-off address generation logic into these sub-operations for optimized writes. Both of these sub-operations write to a shared distributed processor structure called the 'processor store buffer'. As a result, an unprivileged attacker could use this flaw to read private data resident within the CPU's processor store buffer.
6.5 (Medium)
Affected products
Threats
Impact
Moderate
Microprocessors use a ‘load port’ subcomponent to perform load operations from memory or IO. During a load operation, the load port receives data from the memory or IO subsystem and then provides the data to the CPU registers and operations in the CPU’s pipelines. Stale load operations results are stored in the 'load port' table until overwritten by newer operations. Certain load-port operations triggered by an attacker can be used to reveal data about previous stale requests leaking data back to the attacker via a timing side-channel.
6.5 (Medium)
Affected products
Threats
Impact
Moderate
A flaw was found in the implementation of the "fill buffer", a mechanism used by modern CPUs when a cache-miss is made on L1 CPU cache. If an attacker can generate a load operation that would create a page fault, the execution will continue speculatively with incorrect data from the fill buffer while the data is fetched from higher level caches. This response time can be measured to infer data in the fill buffer.
6.2 (Medium)
Affected products
Threats
Impact
Important
Uncacheable memory on some microprocessors utilizing speculative execution may allow an authenticated user to potentially enable information disclosure via a side channel with local access.
CWE-515 - Covert Storage ChannelAffected products
Threats
Impact
Moderate
References
27 references
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RHSA-2019:1206
Vulnerability from csaf_redhat - Published: 2019-05-14 21:10 - Updated: 2026-05-28 20:36Summary
Red Hat Security Advisory: rhvm-setup-plugins security update
Severity
Important
Notes
Topic: An update for rhvm-setup-plugins is now available for Red Hat Virtualization 4.2.
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 rhvm-setup-plugins package adds functionality exclusive only to Red Hat Virtualization Manager, and is not available for the upstream ovirt-engine. It includes the configuration of the Red Hat Support plugin, copying downstream-only artifacts to the ISO domain, and links to the knowledgebase and other support material.
Security Fix(es):
* A flaw was found in the implementation of the "fill buffer", a mechanism used by modern CPUs when a cache-miss is made on L1 CPU cache. If an attacker can generate a load operation that would create a page fault, the execution will continue speculatively with incorrect data from the fill buffer while the data is fetched from higher level caches. This response time can be measured to infer data in the fill buffer. (CVE-2018-12130)
* Modern Intel microprocessors implement hardware-level micro-optimizations to improve the performance of writing data back to CPU caches. The write operation is split into STA (STore Address) and STD (STore Data) sub-operations. These sub-operations allow the processor to hand-off address generation logic into these sub-operations for optimized writes. Both of these sub-operations write to a shared distributed processor structure called the 'processor store buffer'. As a result, an unprivileged attacker could use this flaw to read private data resident within the CPU's processor store buffer. (CVE-2018-12126)
* Microprocessors use a ‘load port’ subcomponent to perform load operations from memory or IO. During a load operation, the load port receives data from the memory or IO subsystem and then provides the data to the CPU registers and operations in the CPU’s pipelines. Stale load operations results are stored in the 'load port' table until overwritten by newer operations. Certain load-port operations triggered by an attacker can be used to reveal data about previous stale requests leaking data back to the attacker via a timing side-channel. (CVE-2018-12127)
* Uncacheable memory on some microprocessors utilizing speculative execution may allow an authenticated user to potentially enable information disclosure via a side channel with local access. (CVE-2019-11091)
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.
Modern Intel microprocessors implement hardware-level micro-optimizations to improve the performance of writing data back to CPU caches. The write operation is split into STA (STore Address) and STD (STore Data) sub-operations. These sub-operations allow the processor to hand-off address generation logic into these sub-operations for optimized writes. Both of these sub-operations write to a shared distributed processor structure called the 'processor store buffer'. As a result, an unprivileged attacker could use this flaw to read private data resident within the CPU's processor store buffer.
6.5 (Medium)
Affected products
Threats
Impact
Moderate
Microprocessors use a ‘load port’ subcomponent to perform load operations from memory or IO. During a load operation, the load port receives data from the memory or IO subsystem and then provides the data to the CPU registers and operations in the CPU’s pipelines. Stale load operations results are stored in the 'load port' table until overwritten by newer operations. Certain load-port operations triggered by an attacker can be used to reveal data about previous stale requests leaking data back to the attacker via a timing side-channel.
6.5 (Medium)
Affected products
Threats
Impact
Moderate
A flaw was found in the implementation of the "fill buffer", a mechanism used by modern CPUs when a cache-miss is made on L1 CPU cache. If an attacker can generate a load operation that would create a page fault, the execution will continue speculatively with incorrect data from the fill buffer while the data is fetched from higher level caches. This response time can be measured to infer data in the fill buffer.
6.2 (Medium)
Affected products
Threats
Impact
Important
Uncacheable memory on some microprocessors utilizing speculative execution may allow an authenticated user to potentially enable information disclosure via a side channel with local access.
CWE-515 - Covert Storage ChannelAffected products
Threats
Impact
Moderate
References
27 references
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RHSA-2019:1207
Vulnerability from csaf_redhat - Published: 2019-05-14 21:10 - Updated: 2026-05-28 20:36Summary
Red Hat Security Advisory: redhat-virtualization-host security update
Severity
Important
Notes
Topic: An update for redhat-release-virtualization-host and redhat-virtualization-host is now available for Red Hat Virtualization 4 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 redhat-virtualization-host packages provide the Red Hat Virtualization Host. These packages include redhat-release-virtualization-host, ovirt-node, and rhev-hypervisor. Red Hat Virtualization Hosts (RHVH) are installed using a special build of Red Hat Enterprise Linux with only the packages required to host virtual machines. RHVH features a Cockpit user interface for monitoring the host's resources and performing administrative tasks.
The ovirt-node-ng packages provide the Red Hat Virtualization Host. These packages include redhat-release-virtualization-host, ovirt-node, and rhev-hypervisor. Red Hat Virtualization Hosts (RHVH) are installed using a special build of Red Hat Enterprise Linux with only the packages required to host virtual machines. RHVH features a Cockpit user interface for monitoring the host's resources and performing administrative tasks.
Security Fix(es):
* A flaw was found in the implementation of the "fill buffer", a mechanism used by modern CPUs when a cache-miss is made on L1 CPU cache. If an attacker can generate a load operation that would create a page fault, the execution will continue speculatively with incorrect data from the fill buffer while the data is fetched from higher level caches. This response time can be measured to infer data in the fill buffer. (CVE-2018-12130)
* Modern Intel microprocessors implement hardware-level micro-optimizations to improve the performance of writing data back to CPU caches. The write operation is split into STA (STore Address) and STD (STore Data) sub-operations. These sub-operations allow the processor to hand-off address generation logic into these sub-operations for optimized writes. Both of these sub-operations write to a shared distributed processor structure called the 'processor store buffer'. As a result, an unprivileged attacker could use this flaw to read private data resident within the CPU's processor store buffer. (CVE-2018-12126)
* Microprocessors use a ‘load port’ subcomponent to perform load operations from memory or IO. During a load operation, the load port receives data from the memory or IO subsystem and then provides the data to the CPU registers and operations in the CPU’s pipelines. Stale load operations results are stored in the 'load port' table until overwritten by newer operations. Certain load-port operations triggered by an attacker can be used to reveal data about previous stale requests leaking data back to the attacker via a timing side-channel. (CVE-2018-12127)
* Uncacheable memory on some microprocessors utilizing speculative execution may allow an authenticated user to potentially enable information disclosure via a side channel with local access. (CVE-2019-11091)
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.
Modern Intel microprocessors implement hardware-level micro-optimizations to improve the performance of writing data back to CPU caches. The write operation is split into STA (STore Address) and STD (STore Data) sub-operations. These sub-operations allow the processor to hand-off address generation logic into these sub-operations for optimized writes. Both of these sub-operations write to a shared distributed processor structure called the 'processor store buffer'. As a result, an unprivileged attacker could use this flaw to read private data resident within the CPU's processor store buffer.
6.5 (Medium)
Affected products
Fixed
5 products
| Product | Identifier | Version | Remediation |
|---|---|---|---|
| Unresolved product id: 7Server-RHEV-4-Hypervisor-7:redhat-virtualization-host-0:4.3-20190512.0.el7_6.src | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-RHEV-4-Hypervisor-7:redhat-virtualization-host-image-update-0:4.3-20190512.0.el7_6.noarch | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-RHEV-4-HypervisorBuild-7:redhat-release-virtualization-host-0:4.3-0.7.el7.src | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-RHEV-4-HypervisorBuild-7:redhat-release-virtualization-host-0:4.3-0.7.el7.x86_64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-RHEV-4-HypervisorBuild-7:redhat-virtualization-host-image-update-placeholder-0:4.3-0.7.el7.noarch | — |
Vendor Fix
fix
|
Threats
Impact
Moderate
Microprocessors use a ‘load port’ subcomponent to perform load operations from memory or IO. During a load operation, the load port receives data from the memory or IO subsystem and then provides the data to the CPU registers and operations in the CPU’s pipelines. Stale load operations results are stored in the 'load port' table until overwritten by newer operations. Certain load-port operations triggered by an attacker can be used to reveal data about previous stale requests leaking data back to the attacker via a timing side-channel.
6.5 (Medium)
Affected products
Fixed
5 products
| Product | Identifier | Version | Remediation |
|---|---|---|---|
| Unresolved product id: 7Server-RHEV-4-Hypervisor-7:redhat-virtualization-host-0:4.3-20190512.0.el7_6.src | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-RHEV-4-Hypervisor-7:redhat-virtualization-host-image-update-0:4.3-20190512.0.el7_6.noarch | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-RHEV-4-HypervisorBuild-7:redhat-release-virtualization-host-0:4.3-0.7.el7.src | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-RHEV-4-HypervisorBuild-7:redhat-release-virtualization-host-0:4.3-0.7.el7.x86_64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-RHEV-4-HypervisorBuild-7:redhat-virtualization-host-image-update-placeholder-0:4.3-0.7.el7.noarch | — |
Vendor Fix
fix
|
Threats
Impact
Moderate
A flaw was found in the implementation of the "fill buffer", a mechanism used by modern CPUs when a cache-miss is made on L1 CPU cache. If an attacker can generate a load operation that would create a page fault, the execution will continue speculatively with incorrect data from the fill buffer while the data is fetched from higher level caches. This response time can be measured to infer data in the fill buffer.
6.2 (Medium)
Affected products
Fixed
5 products
| Product | Identifier | Version | Remediation |
|---|---|---|---|
| Unresolved product id: 7Server-RHEV-4-Hypervisor-7:redhat-virtualization-host-0:4.3-20190512.0.el7_6.src | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-RHEV-4-Hypervisor-7:redhat-virtualization-host-image-update-0:4.3-20190512.0.el7_6.noarch | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-RHEV-4-HypervisorBuild-7:redhat-release-virtualization-host-0:4.3-0.7.el7.src | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-RHEV-4-HypervisorBuild-7:redhat-release-virtualization-host-0:4.3-0.7.el7.x86_64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-RHEV-4-HypervisorBuild-7:redhat-virtualization-host-image-update-placeholder-0:4.3-0.7.el7.noarch | — |
Vendor Fix
fix
|
Threats
Impact
Important
Uncacheable memory on some microprocessors utilizing speculative execution may allow an authenticated user to potentially enable information disclosure via a side channel with local access.
CWE-515 - Covert Storage ChannelAffected products
Fixed
5 products
| Product | Identifier | Version | Remediation |
|---|---|---|---|
| Unresolved product id: 7Server-RHEV-4-Hypervisor-7:redhat-virtualization-host-0:4.3-20190512.0.el7_6.src | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-RHEV-4-Hypervisor-7:redhat-virtualization-host-image-update-0:4.3-20190512.0.el7_6.noarch | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-RHEV-4-HypervisorBuild-7:redhat-release-virtualization-host-0:4.3-0.7.el7.src | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-RHEV-4-HypervisorBuild-7:redhat-release-virtualization-host-0:4.3-0.7.el7.x86_64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: 7Server-RHEV-4-HypervisorBuild-7:redhat-virtualization-host-image-update-placeholder-0:4.3-0.7.el7.noarch | — |
Vendor Fix
fix
|
Threats
Impact
Moderate
References
26 references
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]
}
],
"threats": [
{
"category": "impact",
"details": "Important"
}
],
"title": "hardware: Microarchitectural Fill Buffer Data Sampling (MFBDS)"
},
{
"cve": "CVE-2019-11091",
"cwe": {
"id": "CWE-515",
"name": "Covert Storage Channel"
},
"discovery_date": "2018-11-06T00:00:00+00:00",
"ids": [
{
"system_name": "Red Hat Bugzilla ID",
"text": "1705312"
}
],
"notes": [
{
"category": "description",
"text": "Uncacheable memory on some microprocessors utilizing speculative execution may allow an authenticated user to potentially enable information disclosure via a side channel with local access.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "hardware: Microarchitectural Data Sampling Uncacheable Memory (MDSUM)",
"title": "Vulnerability summary"
},
{
"category": "other",
"text": "Red Hat Product Security is aware of this issue. Updates will be released as they become available. For additional information, please refer to the \u0027Vulnerability Response\u0027 URL.",
"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"
}
],
"product_status": {
"fixed": [
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},
"references": [
{
"category": "self",
"summary": "Canonical URL",
"url": "https://access.redhat.com/security/cve/CVE-2019-11091"
},
{
"category": "external",
"summary": "RHBZ#1705312",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=1705312"
},
{
"category": "external",
"summary": "RHSB-mds",
"url": "https://access.redhat.com/security/vulnerabilities/mds"
},
{
"category": "external",
"summary": "https://www.cve.org/CVERecord?id=CVE-2019-11091",
"url": "https://www.cve.org/CVERecord?id=CVE-2019-11091"
},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2019-11091",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2019-11091"
}
],
"release_date": "2019-05-14T17:00:00+00:00",
"remediations": [
{
"category": "vendor_fix",
"date": "2019-05-14T21:10:49+00:00",
"details": "For details on how to apply this update, which includes the changes described in this advisory, refer to:\n\nhttps://access.redhat.com/articles/2974891",
"product_ids": [
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],
"restart_required": {
"category": "none"
},
"url": "https://access.redhat.com/errata/RHSA-2019:1207"
}
],
"scores": [
{
"cvss_v3": {
"attackComplexity": "LOW",
"attackVector": "LOCAL",
"availabilityImpact": "NONE",
"baseScore": 3.8,
"baseSeverity": "LOW",
"confidentialityImpact": "LOW",
"integrityImpact": "NONE",
"privilegesRequired": "LOW",
"scope": "CHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:L/I:N/A:N",
"version": "3.0"
},
"products": [
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}
],
"threats": [
{
"category": "impact",
"details": "Moderate"
}
],
"title": "hardware: Microarchitectural Data Sampling Uncacheable Memory (MDSUM)"
}
]
}
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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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