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Red Hat Security Advisory 2022-5157-01

Red Hat Security Advisory 2022-5157-01 - The kernel packages contain the Linux kernel, the core of any Linux operating system. Issues addressed include a privilege escalation vulnerability.

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====================================================================
Red Hat Security Advisory

Synopsis: Important: kernel security and bug fix update
Advisory ID: RHSA-2022:5157-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2022:5157
Issue date: 2022-06-22
CVE Names: CVE-2022-0492 CVE-2022-1729
====================================================================

  1. Summary:

An update for kernel is now available for Red Hat Enterprise Linux 7.4
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.

  1. Relevant releases/architectures:

Red Hat Enterprise Linux Server AUS (v. 7.4) - noarch, x86_64
Red Hat Enterprise Linux Server Optional AUS (v. 7.4) - x86_64

  1. Description:

The kernel packages contain the Linux kernel, the core of any Linux
operating system.

Security Fix(es):

  • kernel: cgroups v1 release_agent feature may allow privilege escalation
    (CVE-2022-0492)

  • kernel: race condition in perf_event_open leads to privilege escalation
    (CVE-2022-1729)

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.

Bug Fix(es):

  • Hitting BUG_ON() in kernel/hrtimer.c:1236 (BZ#2070209)
  1. Solution:

For details on how to apply this update, which includes the changes
described in this advisory, refer to:

https://access.redhat.com/articles/11258

The system must be rebooted for this update to take effect.

  1. Bugs fixed (https://bugzilla.redhat.com/):

2051505 - CVE-2022-0492 kernel: cgroups v1 release_agent feature may allow privilege escalation
2086753 - CVE-2022-1729 kernel: race condition in perf_event_open leads to privilege escalation

  1. Package List:

Red Hat Enterprise Linux Server AUS (v. 7.4):

Source:
kernel-3.10.0-693.103.1.el7.src.rpm

noarch:
kernel-abi-whitelists-3.10.0-693.103.1.el7.noarch.rpm
kernel-doc-3.10.0-693.103.1.el7.noarch.rpm

x86_64:
kernel-3.10.0-693.103.1.el7.x86_64.rpm
kernel-debug-3.10.0-693.103.1.el7.x86_64.rpm
kernel-debug-debuginfo-3.10.0-693.103.1.el7.x86_64.rpm
kernel-debug-devel-3.10.0-693.103.1.el7.x86_64.rpm
kernel-debuginfo-3.10.0-693.103.1.el7.x86_64.rpm
kernel-debuginfo-common-x86_64-3.10.0-693.103.1.el7.x86_64.rpm
kernel-devel-3.10.0-693.103.1.el7.x86_64.rpm
kernel-headers-3.10.0-693.103.1.el7.x86_64.rpm
kernel-tools-3.10.0-693.103.1.el7.x86_64.rpm
kernel-tools-debuginfo-3.10.0-693.103.1.el7.x86_64.rpm
kernel-tools-libs-3.10.0-693.103.1.el7.x86_64.rpm
perf-3.10.0-693.103.1.el7.x86_64.rpm
perf-debuginfo-3.10.0-693.103.1.el7.x86_64.rpm
python-perf-3.10.0-693.103.1.el7.x86_64.rpm
python-perf-debuginfo-3.10.0-693.103.1.el7.x86_64.rpm

Red Hat Enterprise Linux Server Optional AUS (v. 7.4):

x86_64:
kernel-debug-debuginfo-3.10.0-693.103.1.el7.x86_64.rpm
kernel-debuginfo-3.10.0-693.103.1.el7.x86_64.rpm
kernel-debuginfo-common-x86_64-3.10.0-693.103.1.el7.x86_64.rpm
kernel-tools-debuginfo-3.10.0-693.103.1.el7.x86_64.rpm
kernel-tools-libs-devel-3.10.0-693.103.1.el7.x86_64.rpm
perf-debuginfo-3.10.0-693.103.1.el7.x86_64.rpm
python-perf-debuginfo-3.10.0-693.103.1.el7.x86_64.rpm

These packages are GPG signed by Red Hat for security. Our key and
details on how to verify the signature are available from
https://access.redhat.com/security/team/key/

  1. References:

https://access.redhat.com/security/cve/CVE-2022-0492
https://access.redhat.com/security/cve/CVE-2022-1729
https://access.redhat.com/security/updates/classification/#important

  1. Contact:

The Red Hat security contact is [email protected]. More contact
details at https://access.redhat.com/security/team/contact/

Copyright 2022 Red Hat, Inc.
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An update for kernel is now available for Red Hat Enterprise Linux 7.4 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.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. Related CVEs: * CVE-2022-0492: kernel: cgroups v1 release_agent feature may allow privilege escalation * CVE-2022-1729: kernel: race condition in perf_event_open leads to privilege escalation

RHSA-2022:5157: Red Hat Security Advisory: kernel security and bug fix update

An update for kernel is now available for Red Hat Enterprise Linux 7.4 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.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. Related CVEs: * CVE-2022-0492: kernel: cgroups v1 release_agent feature may allow privilege escalation * CVE-2022-1729: kernel: race condition in perf_event_open leads to privilege escalation

Kernel Live Patch Security Notice LSN-0086-1

It was discovered that a race condition existed in the network scheduling subsystem of the Linux kernel, leading to a use-after-free vulnerability. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. Yiqi Sun and Kevin Wang discovered that the cgroups implementation in the Linux kernel did not properly restrict access to the cgroups v1 release_agent feature. A local attacker could use this to gain administrative privileges. Various other issues were also addressed.

Red Hat Security Advisory 2022-4721-01

Red Hat Security Advisory 2022-4721-01 - This is a kernel live patch module which is automatically loaded by the RPM post-install script to modify the code of a running kernel. Issues addressed include a privilege escalation vulnerability.

Red Hat Security Advisory 2022-4717-01

Red Hat Security Advisory 2022-4717-01 - The kernel packages contain the Linux kernel, the core of any Linux operating system. Issues addressed include a privilege escalation vulnerability.

RHSA-2022:4717: Red Hat Security Advisory: kernel security update

An update for kernel is now available for Red Hat Enterprise Linux 7.7 Advanced Update Support, Red Hat Enterprise Linux 7.7 Telco Extended Update Support, and Red Hat Enterprise Linux 7.7 Update Services for SAP Solutions. 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.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. Related CVEs: * CVE-2022-0492: kernel: cgroups v1 release_agent feature may allow privilege escalation

Red Hat Security Advisory 2022-4644-01

Red Hat Security Advisory 2022-4644-01 - The kernel-rt packages provide the Real Time Linux Kernel, which enables fine-tuning for systems with extremely high determinism requirements. Issues addressed include a privilege escalation vulnerability.

Red Hat Security Advisory 2022-4655-01

Red Hat Security Advisory 2022-4655-01 - This is a kernel live patch module which is automatically loaded by the RPM post-install script to modify the code of a running kernel. Issues addressed include a privilege escalation vulnerability.

Red Hat Security Advisory 2022-4642-01

Red Hat Security Advisory 2022-4642-01 - The kernel packages contain the Linux kernel, the core of any Linux operating system. Issues addressed include null pointer and privilege escalation vulnerabilities.

RHSA-2022:4642: Red Hat Security Advisory: kernel security and bug fix update

An update for kernel is now available for Red Hat Enterprise Linux 7. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.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. Related CVEs: * CVE-2022-0492: kernel: cgroups v1 release_agent feature may allow privilege escalation

RHSA-2022:4655: Red Hat Security Advisory: kpatch-patch security update

An update for kpatch-patch is now available for Red Hat Enterprise Linux 7. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.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. Related CVEs: * CVE-2022-0492: kernel: cgroups v1 release_agent feature may allow privilege escalation

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