Home / mailings [RHSA-2023:0839-01] Important: kpatch-patch security update
Posted on 21 February 2023
RedHat===================================================================== Red Hat Security Advisory
Synopsis: Important: kpatch-patch security update
Advisory ID: RHSA-2023:0839-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2023:0839
Issue date: 2023-02-21
CVE Names: CVE-2022-41222 CVE-2022-43945
=====================================================================
1. Summary:
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 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. 8) - 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: mm/mremap.c use-after-free vulnerability (CVE-2022-41222)
* kernel: nfsd buffer overflow by RPC message over TCP with garbage data
(CVE-2022-43945)
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/):
2138818 - CVE-2022-41222 kernel: mm/mremap.c use-after-free vulnerability
2141752 - CVE-2022-43945 kernel: nfsd buffer overflow by RPC message over TCP with garbage data
6. Package List:
Red Hat Enterprise Linux BaseOS (v. 8):
Source:
kpatch-patch-4_18_0-425_10_1-1-1.el8_7.src.rpm
kpatch-patch-4_18_0-425_3_1-1-3.el8.src.rpm
ppc64le:
kpatch-patch-4_18_0-425_10_1-1-1.el8_7.ppc64le.rpm
kpatch-patch-4_18_0-425_10_1-debuginfo-1-1.el8_7.ppc64le.rpm
kpatch-patch-4_18_0-425_10_1-debugsource-1-1.el8_7.ppc64le.rpm
kpatch-patch-4_18_0-425_3_1-1-3.el8.ppc64le.rpm
kpatch-patch-4_18_0-425_3_1-debuginfo-1-3.el8.ppc64le.rpm
kpatch-patch-4_18_0-425_3_1-debugsource-1-3.el8.ppc64le.rpm
x86_64:
kpatch-patch-4_18_0-425_10_1-1-1.el8_7.x86_64.rpm
kpatch-patch-4_18_0-425_10_1-debuginfo-1-1.el8_7.x86_64.rpm
kpatch-patch-4_18_0-425_10_1-debugsource-1-1.el8_7.x86_64.rpm
kpatch-patch-4_18_0-425_3_1-1-3.el8.x86_64.rpm
kpatch-patch-4_18_0-425_3_1-debuginfo-1-3.el8.x86_64.rpm
kpatch-patch-4_18_0-425_3_1-debugsource-1-3.el8.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-2022-41222
https://access.redhat.com/security/cve/CVE-2022-43945
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.
