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Red Hat 7.4: RHSA-2022:5157 Important: Kernel Privilege Escalation Fix

red hat
Calendar Grey June 22, 2022
Dist Redhat Esm H88
Ubuntu has released a significant system patch for 20.04, targeting various vulnerabilities and glitches. Upgrade immediately.
An update for kernel is now available for Red Hat Enterprise Linux 7.4 Advanced Update Support

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.

Summary

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)

Topics%20covered

Topics Covered

security advisory privilege escalation bug fix Red Hat Enterprise Linux important kernel

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

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

Read the Full Advisory


Severity
important
Lowest
Low
Medium
High
Critical

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

Topic

An update for kernel is now available for Red Hat Enterprise Linux 7.4Advanced Update Support.Red Hat Product Security has rated this update as having a security impactof Important. A Common Vulnerability Scoring System (CVSS) base score,which gives a detailed severity rating, is available for each vulnerabilityfrom the CVE link(s) in the References section.

Topics%20covered

Topics Covered

security advisory privilege escalation bug fix Red Hat Enterprise Linux important kernel

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

Bugs Fixed

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

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