Home / mailings [RHSA-2023:1471-01] Important: kpatch-patch security update
Posted on 27 March 2023
RedHat===================================================================== Red Hat Security Advisory
Synopsis: Important: kpatch-patch security update
Advisory ID: RHSA-2023:1471-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2023:1471
Issue date: 2023-03-27
CVE Names: CVE-2022-4744 CVE-2023-0266
=====================================================================
1. Summary:
An update for kpatch-patch is now available for Red Hat Enterprise Linux 9.
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.
2. Relevant releases/architectures:
Red Hat Enterprise Linux BaseOS (v. 9) - ppc64le, x86_64
3. Description:
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: tun: avoid double free in tun_free_netdev (CVE-2022-4744)
* ALSA: pcm: Move rwsem lock inside snd_ctl_elem_read to prevent UAF
(CVE-2023-0266)
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.
4. 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
5. Bugs fixed (https://bugzilla.redhat.com/):
2156322 - CVE-2022-4744 kernel: tun: avoid double free in tun_free_netdev
2163379 - CVE-2023-0266 ALSA: pcm: Move rwsem lock inside snd_ctl_elem_read to prevent UAF
6. Package List:
Red Hat Enterprise Linux BaseOS (v. 9):
Source:
kpatch-patch-5_14_0-162_12_1-1-2.el9_1.src.rpm
kpatch-patch-5_14_0-162_18_1-1-1.el9_1.src.rpm
kpatch-patch-5_14_0-162_6_1-1-3.el9_1.src.rpm
ppc64le:
kpatch-patch-5_14_0-162_12_1-1-2.el9_1.ppc64le.rpm
kpatch-patch-5_14_0-162_12_1-debuginfo-1-2.el9_1.ppc64le.rpm
kpatch-patch-5_14_0-162_12_1-debugsource-1-2.el9_1.ppc64le.rpm
kpatch-patch-5_14_0-162_18_1-1-1.el9_1.ppc64le.rpm
kpatch-patch-5_14_0-162_18_1-debuginfo-1-1.el9_1.ppc64le.rpm
kpatch-patch-5_14_0-162_18_1-debugsource-1-1.el9_1.ppc64le.rpm
kpatch-patch-5_14_0-162_6_1-1-3.el9_1.ppc64le.rpm
kpatch-patch-5_14_0-162_6_1-debuginfo-1-3.el9_1.ppc64le.rpm
kpatch-patch-5_14_0-162_6_1-debugsource-1-3.el9_1.ppc64le.rpm
x86_64:
kpatch-patch-5_14_0-162_12_1-1-2.el9_1.x86_64.rpm
kpatch-patch-5_14_0-162_12_1-debuginfo-1-2.el9_1.x86_64.rpm
kpatch-patch-5_14_0-162_12_1-debugsource-1-2.el9_1.x86_64.rpm
kpatch-patch-5_14_0-162_18_1-1-1.el9_1.x86_64.rpm
kpatch-patch-5_14_0-162_18_1-debuginfo-1-1.el9_1.x86_64.rpm
kpatch-patch-5_14_0-162_18_1-debugsource-1-1.el9_1.x86_64.rpm
kpatch-patch-5_14_0-162_6_1-1-3.el9_1.x86_64.rpm
kpatch-patch-5_14_0-162_6_1-debuginfo-1-3.el9_1.x86_64.rpm
kpatch-patch-5_14_0-162_6_1-debugsource-1-3.el9_1.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/
7. References:
https://access.redhat.com/security/cve/CVE-2022-4744
https://access.redhat.com/security/cve/CVE-2023-0266
https://access.redhat.com/security/updates/classification/#important
8. Contact:
The Red Hat security contact is <secalert@redhat.com>. More contact
details at https://access.redhat.com/security/team/contact/
Copyright 2023 Red Hat, Inc.
