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CERTFR-2021-AVI-864
Vulnerability from certfr_avis - Published: 2021-11-12 - Updated: 2021-11-12
De multiples vulnérabilités ont été découvertes dans le noyau Linux de Red Hat. Certaines d'entre elles permettent à un attaquant de provoquer un problème de sécurité non spécifié par l'éditeur, un déni de service et un contournement de la politique de sécurité.
Solution
Se référer au bulletin de sécurité de l'éditeur pour l'obtention des correctifs (cf. section Documentation).
NoneImpacted products
| Vendor | Product | Description | ||
|---|---|---|---|---|
| Red Hat | Red Hat Enterprise Linux | Red Hat Enterprise Linux for Power, little endian 8 ppc64le | ||
| Red Hat | Red Hat Enterprise Linux | Red Hat Enterprise Linux for IBM z Systems 8 s390x | ||
| Red Hat | Red Hat Enterprise Linux | Red Hat Enterprise Linux for x86_64 8 x86_64 | ||
| Red Hat | Red Hat Enterprise Linux | Red Hat Enterprise Linux for Real Time 8 x86_64 | ||
| Red Hat | Red Hat Enterprise Linux | Red Hat Enterprise Linux for ARM 64 8 aarch64 | ||
| Red Hat | Red Hat CodeReady Linux Builder | Red Hat CodeReady Linux Builder for ARM 64 8 aarch64 | ||
| Red Hat | Red Hat Enterprise Linux | Red Hat Enterprise Linux for Real Time for NFV 8 x86_64 | ||
| Red Hat | Red Hat CodeReady Linux Builder | Red Hat CodeReady Linux Builder for x86_64 8 x86_64 | ||
| Red Hat | Red Hat CodeReady Linux Builder | Red Hat CodeReady Linux Builder for Power, little endian 8 ppc64le | ||
| Red Hat | N/A | Red Hat Virtualization Host 4 for RHEL 8 x86_64 |
References
| Title | Publication Time | Tags | ||||||
|---|---|---|---|---|---|---|---|---|
|
||||||||
{
"$ref": "https://www.cert.ssi.gouv.fr/openapi.json",
"affected_systems": [
{
"description": "Red Hat Enterprise Linux for Power, little endian 8 ppc64le",
"product": {
"name": "Red Hat Enterprise Linux",
"vendor": {
"name": "Red Hat",
"scada": false
}
}
},
{
"description": "Red Hat Enterprise Linux for IBM z Systems 8 s390x",
"product": {
"name": "Red Hat Enterprise Linux",
"vendor": {
"name": "Red Hat",
"scada": false
}
}
},
{
"description": "Red Hat Enterprise Linux for x86_64 8 x86_64",
"product": {
"name": "Red Hat Enterprise Linux",
"vendor": {
"name": "Red Hat",
"scada": false
}
}
},
{
"description": "Red Hat Enterprise Linux for Real Time 8 x86_64",
"product": {
"name": "Red Hat Enterprise Linux",
"vendor": {
"name": "Red Hat",
"scada": false
}
}
},
{
"description": "Red Hat Enterprise Linux for ARM 64 8 aarch64",
"product": {
"name": "Red Hat Enterprise Linux",
"vendor": {
"name": "Red Hat",
"scada": false
}
}
},
{
"description": "Red Hat CodeReady Linux Builder for ARM 64 8 aarch64",
"product": {
"name": "Red Hat CodeReady Linux Builder",
"vendor": {
"name": "Red Hat",
"scada": false
}
}
},
{
"description": "Red Hat Enterprise Linux for Real Time for NFV 8 x86_64",
"product": {
"name": "Red Hat Enterprise Linux",
"vendor": {
"name": "Red Hat",
"scada": false
}
}
},
{
"description": "Red Hat CodeReady Linux Builder for x86_64 8 x86_64",
"product": {
"name": "Red Hat CodeReady Linux Builder",
"vendor": {
"name": "Red Hat",
"scada": false
}
}
},
{
"description": "Red Hat CodeReady Linux Builder for Power, little endian 8 ppc64le",
"product": {
"name": "Red Hat CodeReady Linux Builder",
"vendor": {
"name": "Red Hat",
"scada": false
}
}
},
{
"description": "Red Hat Virtualization Host 4 for RHEL 8 x86_64",
"product": {
"name": "N/A",
"vendor": {
"name": "Red Hat",
"scada": false
}
}
}
],
"affected_systems_content": null,
"content": "## Solution\n\nSe r\u00e9f\u00e9rer au bulletin de s\u00e9curit\u00e9 de l\u0027\u00e9diteur pour l\u0027obtention des\ncorrectifs (cf. section Documentation).\n",
"cves": [
{
"name": "CVE-2020-29368",
"url": "https://www.cve.org/CVERecord?id=CVE-2020-29368"
},
{
"name": "CVE-2020-26139",
"url": "https://www.cve.org/CVERecord?id=CVE-2020-26139"
},
{
"name": "CVE-2021-20239",
"url": "https://www.cve.org/CVERecord?id=CVE-2021-20239"
},
{
"name": "CVE-2020-24587",
"url": "https://www.cve.org/CVERecord?id=CVE-2020-24587"
},
{
"name": "CVE-2021-3600",
"url": "https://www.cve.org/CVERecord?id=CVE-2021-3600"
},
{
"name": "CVE-2020-27777",
"url": "https://www.cve.org/CVERecord?id=CVE-2020-27777"
},
{
"name": "CVE-2021-3679",
"url": "https://www.cve.org/CVERecord?id=CVE-2021-3679"
},
{
"name": "CVE-2021-31440",
"url": "https://www.cve.org/CVERecord?id=CVE-2021-31440"
},
{
"name": "CVE-2020-29660",
"url": "https://www.cve.org/CVERecord?id=CVE-2020-29660"
},
{
"name": "CVE-2020-26146",
"url": "https://www.cve.org/CVERecord?id=CVE-2020-26146"
},
{
"name": "CVE-2020-26143",
"url": "https://www.cve.org/CVERecord?id=CVE-2020-26143"
},
{
"name": "CVE-2021-31916",
"url": "https://www.cve.org/CVERecord?id=CVE-2021-31916"
},
{
"name": "CVE-2021-3635",
"url": "https://www.cve.org/CVERecord?id=CVE-2021-3635"
},
{
"name": "CVE-2021-3573",
"url": "https://www.cve.org/CVERecord?id=CVE-2021-3573"
},
{
"name": "CVE-2020-24504",
"url": "https://www.cve.org/CVERecord?id=CVE-2020-24504"
},
{
"name": "CVE-2020-24588",
"url": "https://www.cve.org/CVERecord?id=CVE-2020-24588"
},
{
"name": "CVE-2021-28971",
"url": "https://www.cve.org/CVERecord?id=CVE-2021-28971"
},
{
"name": "CVE-2021-23133",
"url": "https://www.cve.org/CVERecord?id=CVE-2021-23133"
},
{
"name": "CVE-2020-26140",
"url": "https://www.cve.org/CVERecord?id=CVE-2020-26140"
},
{
"name": "CVE-2021-3659",
"url": "https://www.cve.org/CVERecord?id=CVE-2021-3659"
},
{
"name": "CVE-2020-24586",
"url": "https://www.cve.org/CVERecord?id=CVE-2020-24586"
},
{
"name": "CVE-2020-24502",
"url": "https://www.cve.org/CVERecord?id=CVE-2020-24502"
},
{
"name": "CVE-2021-0129",
"url": "https://www.cve.org/CVERecord?id=CVE-2021-0129"
},
{
"name": "CVE-2020-36158",
"url": "https://www.cve.org/CVERecord?id=CVE-2020-36158"
},
{
"name": "CVE-2020-36386",
"url": "https://www.cve.org/CVERecord?id=CVE-2020-36386"
},
{
"name": "CVE-2020-26144",
"url": "https://www.cve.org/CVERecord?id=CVE-2020-26144"
},
{
"name": "CVE-2021-28950",
"url": "https://www.cve.org/CVERecord?id=CVE-2021-28950"
},
{
"name": "CVE-2021-29650",
"url": "https://www.cve.org/CVERecord?id=CVE-2021-29650"
},
{
"name": "CVE-2021-3564",
"url": "https://www.cve.org/CVERecord?id=CVE-2021-3564"
},
{
"name": "CVE-2021-3489",
"url": "https://www.cve.org/CVERecord?id=CVE-2021-3489"
},
{
"name": "CVE-2020-24503",
"url": "https://www.cve.org/CVERecord?id=CVE-2020-24503"
},
{
"name": "CVE-2021-3348",
"url": "https://www.cve.org/CVERecord?id=CVE-2021-3348"
},
{
"name": "CVE-2021-20194",
"url": "https://www.cve.org/CVERecord?id=CVE-2021-20194"
},
{
"name": "CVE-2020-26147",
"url": "https://www.cve.org/CVERecord?id=CVE-2020-26147"
},
{
"name": "CVE-2021-3732",
"url": "https://www.cve.org/CVERecord?id=CVE-2021-3732"
},
{
"name": "CVE-2021-29155",
"url": "https://www.cve.org/CVERecord?id=CVE-2021-29155"
},
{
"name": "CVE-2020-26141",
"url": "https://www.cve.org/CVERecord?id=CVE-2020-26141"
},
{
"name": "CVE-2021-33200",
"url": "https://www.cve.org/CVERecord?id=CVE-2021-33200"
},
{
"name": "CVE-2021-31829",
"url": "https://www.cve.org/CVERecord?id=CVE-2021-31829"
},
{
"name": "CVE-2020-0427",
"url": "https://www.cve.org/CVERecord?id=CVE-2020-0427"
},
{
"name": "CVE-2021-29646",
"url": "https://www.cve.org/CVERecord?id=CVE-2021-29646"
},
{
"name": "CVE-2020-26145",
"url": "https://www.cve.org/CVERecord?id=CVE-2020-26145"
}
],
"initial_release_date": "2021-11-12T00:00:00",
"last_revision_date": "2021-11-12T00:00:00",
"links": [],
"reference": "CERTFR-2021-AVI-864",
"revisions": [
{
"description": "Version initiale",
"revision_date": "2021-11-12T00:00:00.000000"
}
],
"risks": [
{
"description": "Atteinte \u00e0 l\u0027int\u00e9grit\u00e9 des donn\u00e9es"
},
{
"description": "Non sp\u00e9cifi\u00e9 par l\u0027\u00e9diteur"
},
{
"description": "D\u00e9ni de service"
},
{
"description": "Contournement de la politique de s\u00e9curit\u00e9"
},
{
"description": "Atteinte \u00e0 la confidentialit\u00e9 des donn\u00e9es"
},
{
"description": "\u00c9l\u00e9vation de privil\u00e8ges"
}
],
"summary": "De multiples vuln\u00e9rabilit\u00e9s ont \u00e9t\u00e9 d\u00e9couvertes dans le noyau Linux de\nRed Hat. Certaines d\u0027entre elles permettent \u00e0 un attaquant de provoquer\nun probl\u00e8me de s\u00e9curit\u00e9 non sp\u00e9cifi\u00e9 par l\u0027\u00e9diteur, un d\u00e9ni de service\net un contournement de la politique de s\u00e9curit\u00e9.\n",
"title": "Multiples vuln\u00e9rabilit\u00e9s dans le noyau Linux de Red Hat",
"vendor_advisories": [
{
"published_at": null,
"title": "Bulletin de s\u00e9curit\u00e9 Red Hat RHSA-2021:4356 du 10 novembre 2021",
"url": "https://access.redhat.com/errata/RHSA-2021:4356"
},
{
"published_at": null,
"title": "Bulletin de s\u00e9curit\u00e9 Red Hat RHSA-2021:4140 du 09 novembre 2021",
"url": "https://access.redhat.com/errata/RHSA-2021:4140"
}
]
}
CVE-2021-31829 (GCVE-0-2021-31829)
Vulnerability from cvelistv5 – Published: 2021-05-06 15:43 – Updated: 2024-08-03 23:10
VLAI
EPSS
Summary
kernel/bpf/verifier.c in the Linux kernel through 5.12.1 performs undesirable speculative loads, leading to disclosure of stack content via side-channel attacks, aka CID-801c6058d14a. The specific concern is not protecting the BPF stack area against speculative loads. Also, the BPF stack can contain uninitialized data that might represent sensitive information previously operated on by the kernel.
Severity
No CVSS data available.
CWE
- n/a
Assigner
References
6 references
| URL | Tags |
|---|---|
| http://www.openwall.com/lists/oss-security/2021/05/04/4 | mailing-listx_refsource_MLIST |
| https://github.com/torvalds/linux/commit/801c6058… | x_refsource_MISC |
| https://lists.fedoraproject.org/archives/list/pac… | vendor-advisoryx_refsource_FEDORA |
| https://lists.fedoraproject.org/archives/list/pac… | vendor-advisoryx_refsource_FEDORA |
| https://lists.fedoraproject.org/archives/list/pac… | vendor-advisoryx_refsource_FEDORA |
| https://lists.debian.org/debian-lts-announce/2021… | mailing-listx_refsource_MLIST |
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CVE-2021-31916 (GCVE-0-2021-31916)
Vulnerability from cvelistv5 – Published: 2021-05-06 16:14 – Updated: 2024-08-03 23:10
VLAI
EPSS
Summary
An out-of-bounds (OOB) memory write flaw was found in list_devices in drivers/md/dm-ioctl.c in the Multi-device driver module in the Linux kernel before 5.12. A bound check failure allows an attacker with special user (CAP_SYS_ADMIN) privilege to gain access to out-of-bounds memory leading to a system crash or a leak of internal kernel information. The highest threat from this vulnerability is to system availability.
Severity
No CVSS data available.
CWE
Assigner
References
5 references
| URL | Tags |
|---|---|
| https://bugzilla.redhat.com/show_bug.cgi?id=1946965 | x_refsource_MISC |
| https://github.com/torvalds/linux/commit/4edbe1d7… | x_refsource_MISC |
| https://seclists.org/oss-sec/2021/q1/268 | x_refsource_MISC |
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CVE-2021-33200 (GCVE-0-2021-33200)
Vulnerability from cvelistv5 – Published: 2021-05-27 00:00 – Updated: 2024-08-03 23:42
VLAI
EPSS
Summary
kernel/bpf/verifier.c in the Linux kernel through 5.12.7 enforces incorrect limits for pointer arithmetic operations, aka CID-bb01a1bba579. This can be abused to perform out-of-bounds reads and writes in kernel memory, leading to local privilege escalation to root. In particular, there is a corner case where the off reg causes a masking direction change, which then results in an incorrect final aux->alu_limit.
Severity
No CVSS data available.
CWE
- n/a
Assigner
References
7 references
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CVE-2021-3348 (GCVE-0-2021-3348)
Vulnerability from cvelistv5 – Published: 2021-02-01 03:43 – Updated: 2024-08-03 16:53
VLAI
EPSS
Summary
nbd_add_socket in drivers/block/nbd.c in the Linux kernel through 5.10.12 has an ndb_queue_rq use-after-free that could be triggered by local attackers (with access to the nbd device) via an I/O request at a certain point during device setup, aka CID-b98e762e3d71.
Severity
No CVSS data available.
CWE
- n/a
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://git.kernel.org/pub/scm/linux/kernel/git/t… | x_refsource_MISC |
| https://www.openwall.com/lists/oss-security/2021/… | x_refsource_MISC |
| http://www.openwall.com/lists/oss-security/2021/02/01/1 | mailing-listx_refsource_MLIST |
| https://lists.debian.org/debian-lts-announce/2021… | mailing-listx_refsource_MLIST |
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CVE-2021-3489 (GCVE-0-2021-3489)
Vulnerability from cvelistv5 – Published: 2021-06-04 01:40 – Updated: 2024-09-16 20:21
VLAI
EPSS
Title
Linux kernel eBPF RINGBUF map oversized allocation
Summary
The eBPF RINGBUF bpf_ringbuf_reserve() function in the Linux kernel did not check that the allocated size was smaller than the ringbuf size, allowing an attacker to perform out-of-bounds writes within the kernel and therefore, arbitrary code execution. This issue was fixed via commit 4b81ccebaeee ("bpf, ringbuf: Deny reserve of buffers larger than ringbuf") (v5.13-rc4) and backported to the stable kernels in v5.12.4, v5.11.21, and v5.10.37. It was introduced via 457f44363a88 ("bpf: Implement BPF ring buffer and verifier support for it") (v5.8-rc1).
Severity
7.8 (High)
CWE
Assigner
References
6 references
| URL | Tags |
|---|---|
| https://www.openwall.com/lists/oss-security/2021/… | mailing-listx_refsource_MLIST |
| https://git.kernel.org/pub/scm/linux/kernel/git/b… | x_refsource_MISC |
| https://www.zerodayinitiative.com/advisories/ZDI-… | x_refsource_MISC |
| https://ubuntu.com/security/notices/USN-4950-1 | vendor-advisoryx_refsource_UBUNTU |
| https://ubuntu.com/security/notices/USN-4949-1 | vendor-advisoryx_refsource_UBUNTU |
| https://security.netapp.com/advisory/ntap-2021071… | x_refsource_CONFIRM |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Linux | Linux kernel |
Affected:
trunk , < v5.13-rc4
(custom)
Affected: linux-5.12.y , < v5.12.4 (custom) Affected: linux-5.11.y , < v5.11.21 (custom) Affected: linux-5.10.y , < v5.10.37 (custom) Affected: v5.8 , < 5.8* (custom) |
Date Public
2021-05-11 00:00
Credits
Ryota Shiga (@Ga_ryo_) of Flatt Security working with Trend Micro's Zero Day Initiative
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CVE-2021-3564 (GCVE-0-2021-3564)
Vulnerability from cvelistv5 – Published: 2021-06-08 11:59 – Updated: 2024-08-03 17:01
VLAI
EPSS
Summary
A flaw double-free memory corruption in the Linux kernel HCI device initialization subsystem was found in the way user attach malicious HCI TTY Bluetooth device. A local user could use this flaw to crash the system. This flaw affects all the Linux kernel versions starting from 3.13.
Severity
No CVSS data available.
CWE
Assigner
References
6 references
| URL | Tags |
|---|---|
| http://www.openwall.com/lists/oss-security/2021/05/25/1 | mailing-listx_refsource_MLIST |
| http://www.openwall.com/lists/oss-security/2021/06/01/2 | mailing-listx_refsource_MLIST |
| https://bugzilla.redhat.com/show_bug.cgi?id=1964139 | x_refsource_MISC |
| https://www.openwall.com/lists/oss-security/2021/… | x_refsource_MISC |
| https://lists.debian.org/debian-lts-announce/2021… | mailing-listx_refsource_MLIST |
| https://lists.debian.org/debian-lts-announce/2021… | mailing-listx_refsource_MLIST |
Impacted products
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CVE-2021-3573 (GCVE-0-2021-3573)
Vulnerability from cvelistv5 – Published: 2021-08-13 00:00 – Updated: 2024-08-03 17:01
VLAI
EPSS
Summary
A use-after-free in function hci_sock_bound_ioctl() of the Linux kernel HCI subsystem was found in the way user calls ioct HCIUNBLOCKADDR or other way triggers race condition of the call hci_unregister_dev() together with one of the calls hci_sock_blacklist_add(), hci_sock_blacklist_del(), hci_get_conn_info(), hci_get_auth_info(). A privileged local user could use this flaw to crash the system or escalate their privileges on the system. This flaw affects the Linux kernel versions prior to 5.13-rc5.
Severity
No CVSS data available.
CWE
- CWE-362 - >CWE-416
Assigner
References
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CVE-2021-3600 (GCVE-0-2021-3600)
Vulnerability from cvelistv5 – Published: 2024-01-08 18:16 – Updated: 2024-09-04 15:38
VLAI
EPSS
Summary
It was discovered that the eBPF implementation in the Linux kernel did not properly track bounds information for 32 bit registers when performing div and mod operations. A local attacker could use this to possibly execute arbitrary code.
Severity
7.8 (High)
7.8 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator (v2.0.3)
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://cve.mitre.org/cgi-bin/cvename.cgi?name=CV… | issue-tracking |
| https://ubuntu.com/security/notices/USN-5003-1 | third-party-advisory |
| https://git.kernel.org/linus/e88b2c6e5a4d9ce30d75… | issue-tracking |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| The Linux Kernel Organization | linux |
Affected:
0 , < 5.11
(semver)
|
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CVE-2021-3635 (GCVE-0-2021-3635)
Vulnerability from cvelistv5 – Published: 2021-08-13 13:22 – Updated: 2024-08-03 17:01
VLAI
EPSS
Summary
A flaw was found in the Linux kernel netfilter implementation in versions prior to 5.5-rc7. A user with root (CAP_SYS_ADMIN) access is able to panic the system when issuing netfilter netflow commands.
Severity
No CVSS data available.
CWE
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://bugzilla.redhat.com/show_bug.cgi?id=1976946 | x_refsource_MISC |
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CVE-2021-3659 (GCVE-0-2021-3659)
Vulnerability from cvelistv5 – Published: 2022-08-22 14:49 – Updated: 2024-08-03 17:01
VLAI
EPSS
Summary
A NULL pointer dereference flaw was found in the Linux kernel’s IEEE 802.15.4 wireless networking subsystem in the way the user closes the LR-WPAN connection. This flaw allows a local user to crash the system. The highest threat from this vulnerability is to system availability.
Severity
No CVSS data available.
CWE
- CWE-252 - - Unchecked Return Value, CWE-476 - NULL Pointer Dereference
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://git.kernel.org/pub/scm/linux/kernel/git/t… | x_refsource_MISC |
| https://bugzilla.redhat.com/show_bug.cgi?id=1975949 | x_refsource_MISC |
| https://access.redhat.com/security/cve/CVE-2021-3659 | x_refsource_MISC |
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Loading…
Trend slope:
-
(linear fit over daily sighting counts)
Show additional events:
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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