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Red Hat Enterprise Linux 8 RHSA-2023:1659-01 Important Kpatch Update Alert

red hat
Calendar Grey April 5, 2023
Dist Redhat Esm H88
An essential security enhancement for kpatch-patch in Red Hat Enterprise Linux tackles significant weaknesses and provides resolutions.
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):
* kernel: stack overflow in do_proc_dointvec and proc_skip_spaces (CVE-2022-4378)
* ALSA: pcm: Move rwsem lock inside snd_ctl_elem_read to prevent UAF (CVE-2023-0266)
* kernel: FUSE filesystem low-privileged user privileges escalation (CVE-2023-0386)
* kpatch: mm/mremap.c: incomplete fix for CVE-2022-41222 (CVE-2023-1476)
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 security update privilege escalation Red Hat Enterprise Linux important kernel kpatch

References

https://access.redhat.com/security/cve/CVE-2022-4378 https://access.redhat.com/security/cve/CVE-2023-0266 https://access.redhat.com/security/cve/CVE-2023-0386 https://access.redhat.com/security/cve/CVE-2023-1476 https://access.redhat.com/security/updates/classification#important

Package List

Red Hat Enterprise Linux BaseOS (v. 8):
Source: kpatch-patch-4_18_0-425_10_1-1-4.el8_7.src.rpm kpatch-patch-4_18_0-425_13_1-1-2.el8_7.src.rpm kpatch-patch-4_18_0-425_3_1-1-6.el8.src.rpm
ppc64le: kpatch-patch-4_18_0-425_10_1-1-4.el8_7.ppc64le.rpm kpatch-patch-4_18_0-425_10_1-debuginfo-1-4.el8_7.ppc64le.rpm kpatch-patch-4_18_0-425_10_1-debugsource-1-4.el8_7.ppc64le.rpm kpatch-patch-4_18_0-425_13_1-1-2.el8_7.ppc64le.rpm kpatch-patch-4_18_0-425_13_1-debuginfo-1-2.el8_7.ppc64le.rpm kpatch-patch-4_18_0-425_13_1-debugsource-1-2.el8_7.ppc64le.rpm kpatch-patch-4_18_0-425_3_1-1-6.el8.ppc64le.rpm kpatch-patch-4_18_0-425_3_1-debuginfo-1-6.el8.ppc64le.rpm kpatch-patch-4_18_0-425_3_1-debugsource-1-6.el8.ppc64le.rpm
x86_64: kpatch-patch-4_18_0-425_10_1-1-4.el8_7.x86_64.rpm kpatch-patch-4_18_0-425_10_1-debuginfo-1-4.el8_7.x86_64.rpm kpatch-patch-4_18_0-425_10_1-debugsource-1-4.el8_7.x86_64.rpm kpatch-patch-4_18_0-425_13_1-1-2.el8_7.x86_64.rpm kpatch-patch-4_18_0-425_13_1-debuginfo-1-2.el8_7.x86_64.rpm kpatch-patch-4_18_0-425_13_1-debugsource-1-2.el8_7.x86_64.rpm kpatch-patch-4_18_0-425_3_1-1-6.el8.x86_64.rpm kpatch-patch-4_18_0-425_3_1-debuginfo-1-6.el8.x86_64.rpm kpatch-patch-4_18_0-425_3_1-debugsource-1-6.el8.x86_64.rpm
These packages are GPG signed by Red Hat for security. Our key and

Read the Full Advisory


Severity
important
Lowest
Low
Medium
High
Critical

Advisory ID: RHSA-2023:1659-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2023:1659
Issue date: 2023-04-05

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 security update privilege escalation Red Hat Enterprise Linux important kernel kpatch

Relevant Releases Architectures

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

Bugs Fixed

2152548 - CVE-2022-4378 kernel: stack overflow in do_proc_dointvec and proc_skip_spaces

2159505 - CVE-2023-0386 kernel: FUSE filesystem low-privileged user privileges escalation

2163379 - CVE-2023-0266 ALSA: pcm: Move rwsem lock inside snd_ctl_elem_read to prevent UAF

2176035 - CVE-2023-1476 kpatch: mm/mremap.c: incomplete fix for CVE-2022-41222

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