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Red Hat 8 RHSA-2022:7137-01 Important Kpatch-Patch Privilege Escalation

red hat
Calendar Grey October 25, 2022
Dist Redhat Esm H88
Ubuntu 20.04 LTS is set to roll out a significant kernel-update fix aimed at mitigating a security vulnerability related to unauthorized access.
An update for kpatch-patch is now available for Red Hat Enterprise Linux 8

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

Summary

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.
Security Fix(es):
* a use-after-free in cls_route filter implementation may lead to privilege escalation (CVE-2022-2588)
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.

Topics%20covered

Topics Covered

security advisory update privilege escalation kernel patch Red Hat Enterprise Linux important kpatch-patch

References

https://access.redhat.com/security/cve/CVE-2022-2588 https://access.redhat.com/security/updates/classification/#important

Package List

Red Hat Enterprise Linux BaseOS (v. 8):
Source: kpatch-patch-4_18_0-372_13_1-1-2.el8_6.src.rpm kpatch-patch-4_18_0-372_16_1-1-2.el8_6.src.rpm kpatch-patch-4_18_0-372_19_1-1-1.el8_6.src.rpm kpatch-patch-4_18_0-372_26_1-1-1.el8_6.src.rpm kpatch-patch-4_18_0-372_9_1-1-3.el8.src.rpm
ppc64le: kpatch-patch-4_18_0-372_13_1-1-2.el8_6.ppc64le.rpm kpatch-patch-4_18_0-372_13_1-debuginfo-1-2.el8_6.ppc64le.rpm kpatch-patch-4_18_0-372_13_1-debugsource-1-2.el8_6.ppc64le.rpm kpatch-patch-4_18_0-372_16_1-1-2.el8_6.ppc64le.rpm kpatch-patch-4_18_0-372_16_1-debuginfo-1-2.el8_6.ppc64le.rpm kpatch-patch-4_18_0-372_16_1-debugsource-1-2.el8_6.ppc64le.rpm kpatch-patch-4_18_0-372_19_1-1-1.el8_6.ppc64le.rpm kpatch-patch-4_18_0-372_19_1-debuginfo-1-1.el8_6.ppc64le.rpm kpatch-patch-4_18_0-372_19_1-debugsource-1-1.el8_6.ppc64le.rpm kpatch-patch-4_18_0-372_26_1-1-1.el8_6.ppc64le.rpm kpatch-patch-4_18_0-372_26_1-debuginfo-1-1.el8_6.ppc64le.rpm kpatch-patch-4_18_0-372_26_1-debugsource-1-1.el8_6.ppc64le.rpm kpatch-patch-4_18_0-372_9_1-1-3.el8.ppc64le.rpm kpatch-patch-4_18_0-372_9_1-debuginfo-1-3.el8.ppc64le.rpm kpatch-patch-4_18_0-372_9_1-debugsource-1-3.el8.ppc64le.rpm
x86_64: kpatch-patch-4_18_0-372_13_1-1-2.el8_6.x86_64.rpm kpatch-patch-4_18_0-372_13_1-debuginfo-1-2.el8_6.x86_64.rpm

Read the Full Advisory


Severity
important
Lowest
Low
Medium
High
Critical

Advisory ID: RHSA-2022:7137-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2022:7137
Issue date: 2022-10-25

Topic

An update for kpatch-patch is now available for Red Hat Enterprise Linux 8.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 update privilege escalation kernel patch Red Hat Enterprise Linux important kpatch-patch

Relevant Releases Architectures

Red Hat Enterprise Linux BaseOS (v. 8) - ppc64le, x86_64

Bugs Fixed

2114849 - CVE-2022-2588 kernel: a use-after-free in cls_route filter implementation may lead to privilege escalation

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