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Critical Kernel Update for Red Hat Enterprise Linux 7 - RHSA-2022-5232

red hat
Calendar Grey June 28, 2022
Dist Redhat Esm H88
Crucial kernel upgrade for Red Hat Enterprise Linux resolves vulnerabilities related to privilege escalation and includes several bug remedies.
An update for kernel is now available for Red Hat Enterprise Linux 7

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: race condition in perf_event_open leads to privilege escalation (CVE-2022-1729)
* kernel: a use-after-free write in the netfilter subsystem can lead to privilege escalation to root (CVE-2022-1966)
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):
* XFS inode cluster corruption (BZ#2050464)
* sock: sock_dequeue_err_skb() needs hard irq safety (BZ#2070408)
* libceph: fix potential use-after-free on linger ping and resends (BZ#2088025)

Topics%20covered

Topics Covered

security advisory kernel update privilege escalation Red Hat Enterprise Linux security impact bug fixes Important

References

https://access.redhat.com/security/cve/CVE-2022-1729 https://access.redhat.com/security/cve/CVE-2022-1966 https://access.redhat.com/security/updates/classification/#important

Package List

Red Hat Enterprise Linux Client (v. 7):
Source: kernel-3.10.0-1160.71.1.el7.src.rpm
noarch: kernel-abi-whitelists-3.10.0-1160.71.1.el7.noarch.rpm kernel-doc-3.10.0-1160.71.1.el7.noarch.rpm
x86_64: bpftool-3.10.0-1160.71.1.el7.x86_64.rpm bpftool-debuginfo-3.10.0-1160.71.1.el7.x86_64.rpm kernel-3.10.0-1160.71.1.el7.x86_64.rpm kernel-debug-3.10.0-1160.71.1.el7.x86_64.rpm kernel-debug-debuginfo-3.10.0-1160.71.1.el7.x86_64.rpm kernel-debug-devel-3.10.0-1160.71.1.el7.x86_64.rpm kernel-debuginfo-3.10.0-1160.71.1.el7.x86_64.rpm kernel-debuginfo-common-x86_64-3.10.0-1160.71.1.el7.x86_64.rpm kernel-devel-3.10.0-1160.71.1.el7.x86_64.rpm kernel-headers-3.10.0-1160.71.1.el7.x86_64.rpm kernel-tools-3.10.0-1160.71.1.el7.x86_64.rpm kernel-tools-debuginfo-3.10.0-1160.71.1.el7.x86_64.rpm kernel-tools-libs-3.10.0-1160.71.1.el7.x86_64.rpm perf-3.10.0-1160.71.1.el7.x86_64.rpm perf-debuginfo-3.10.0-1160.71.1.el7.x86_64.rpm python-perf-3.10.0-1160.71.1.el7.x86_64.rpm python-perf-debuginfo-3.10.0-1160.71.1.el7.x86_64.rpm
Red Hat Enterprise Linux Client Optional (v. 7):
x86_64: bpftool-debuginfo-3.10.0-1160.71.1.el7.x86_64.rpm kernel-debug-debuginfo-3.10.0-1160.71.1.el7.x86_64.rpm kernel-debuginfo-3.10.0-1160.71.1.el7.x86_64.rpm kernel-debuginfo-common-x86_64-3.10.0-1160.71.1.el7.x86_64.rpm

Read the Full Advisory


Severity
important
Lowest
Low
Medium
High
Critical

Advisory ID: RHSA-2022:5232-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2022:5232
Issue date: 2022-06-28

Topic

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 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 kernel update privilege escalation Red Hat Enterprise Linux security impact bug fixes Important

Relevant Releases Architectures

Red Hat Enterprise Linux Client (v. 7) - noarch, x86_64

Red Hat Enterprise Linux Client Optional (v. 7) - x86_64

Red Hat Enterprise Linux ComputeNode (v. 7) - noarch, x86_64

Red Hat Enterprise Linux ComputeNode Optional (v. 7) - x86_64

Red Hat Enterprise Linux Server (v. 7) - noarch, ppc64, ppc64le, s390x, x86_64

Red Hat Enterprise Linux Server Optional (v. 7) - ppc64, ppc64le, x86_64

Red Hat Enterprise Linux Workstation (v. 7) - noarch, x86_64

Red Hat Enterprise Linux Workstation Optional (v. 7) - x86_64

Bugs Fixed

2086753 - CVE-2022-1729 kernel: race condition in perf_event_open leads to privilege escalation

2092427 - CVE-2022-1966 kernel: a use-after-free write in the netfilter subsystem can lead to privilege escalation to root

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