An update for kpatch-patch is now available for Red Hat Enterprise Linux 8.6 Extended Update Support. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score,

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====================================================================                   Red Hat Security Advisory

Synopsis:          Important: kpatch-patch security update
Advisory ID:       RHSA-2023:1660-01
Product:           Red Hat Enterprise Linux
Advisory URL:      https://access.redhat.com/errata/RHSA-2023:1660
Issue date:        2023-04-05
CVE Names:         CVE-2023-0266 CVE-2023-0386 
====================================================================
1. Summary:

An update for kpatch-patch is now available for Red Hat Enterprise Linux
8.6 Extended Update Support.

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 EUS (v.8.6) - 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):

* 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)

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/):

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

6. Package List:

Red Hat Enterprise Linux BaseOS EUS (v.8.6):

Source:
kpatch-patch-4_18_0-372_26_1-1-6.el8_6.src.rpm
kpatch-patch-4_18_0-372_32_1-1-5.el8_6.src.rpm
kpatch-patch-4_18_0-372_36_1-1-4.el8_6.src.rpm
kpatch-patch-4_18_0-372_40_1-1-4.el8_6.src.rpm
kpatch-patch-4_18_0-372_41_1-1-3.el8_6.src.rpm
kpatch-patch-4_18_0-372_46_1-1-1.el8_6.src.rpm

ppc64le:
kpatch-patch-4_18_0-372_26_1-1-6.el8_6.ppc64le.rpm
kpatch-patch-4_18_0-372_26_1-debuginfo-1-6.el8_6.ppc64le.rpm
kpatch-patch-4_18_0-372_26_1-debugsource-1-6.el8_6.ppc64le.rpm
kpatch-patch-4_18_0-372_32_1-1-5.el8_6.ppc64le.rpm
kpatch-patch-4_18_0-372_32_1-debuginfo-1-5.el8_6.ppc64le.rpm
kpatch-patch-4_18_0-372_32_1-debugsource-1-5.el8_6.ppc64le.rpm
kpatch-patch-4_18_0-372_36_1-1-4.el8_6.ppc64le.rpm
kpatch-patch-4_18_0-372_36_1-debuginfo-1-4.el8_6.ppc64le.rpm
kpatch-patch-4_18_0-372_36_1-debugsource-1-4.el8_6.ppc64le.rpm
kpatch-patch-4_18_0-372_40_1-1-4.el8_6.ppc64le.rpm
kpatch-patch-4_18_0-372_40_1-debuginfo-1-4.el8_6.ppc64le.rpm
kpatch-patch-4_18_0-372_40_1-debugsource-1-4.el8_6.ppc64le.rpm
kpatch-patch-4_18_0-372_41_1-1-3.el8_6.ppc64le.rpm
kpatch-patch-4_18_0-372_41_1-debuginfo-1-3.el8_6.ppc64le.rpm
kpatch-patch-4_18_0-372_41_1-debugsource-1-3.el8_6.ppc64le.rpm
kpatch-patch-4_18_0-372_46_1-1-1.el8_6.ppc64le.rpm
kpatch-patch-4_18_0-372_46_1-debuginfo-1-1.el8_6.ppc64le.rpm
kpatch-patch-4_18_0-372_46_1-debugsource-1-1.el8_6.ppc64le.rpm

x86_64:
kpatch-patch-4_18_0-372_26_1-1-6.el8_6.x86_64.rpm
kpatch-patch-4_18_0-372_26_1-debuginfo-1-6.el8_6.x86_64.rpm
kpatch-patch-4_18_0-372_26_1-debugsource-1-6.el8_6.x86_64.rpm
kpatch-patch-4_18_0-372_32_1-1-5.el8_6.x86_64.rpm
kpatch-patch-4_18_0-372_32_1-debuginfo-1-5.el8_6.x86_64.rpm
kpatch-patch-4_18_0-372_32_1-debugsource-1-5.el8_6.x86_64.rpm
kpatch-patch-4_18_0-372_36_1-1-4.el8_6.x86_64.rpm
kpatch-patch-4_18_0-372_36_1-debuginfo-1-4.el8_6.x86_64.rpm
kpatch-patch-4_18_0-372_36_1-debugsource-1-4.el8_6.x86_64.rpm
kpatch-patch-4_18_0-372_40_1-1-4.el8_6.x86_64.rpm
kpatch-patch-4_18_0-372_40_1-debuginfo-1-4.el8_6.x86_64.rpm
kpatch-patch-4_18_0-372_40_1-debugsource-1-4.el8_6.x86_64.rpm
kpatch-patch-4_18_0-372_41_1-1-3.el8_6.x86_64.rpm
kpatch-patch-4_18_0-372_41_1-debuginfo-1-3.el8_6.x86_64.rpm
kpatch-patch-4_18_0-372_41_1-debugsource-1-3.el8_6.x86_64.rpm
kpatch-patch-4_18_0-372_46_1-1-1.el8_6.x86_64.rpm
kpatch-patch-4_18_0-372_46_1-debuginfo-1-1.el8_6.x86_64.rpm
kpatch-patch-4_18_0-372_46_1-debugsource-1-1.el8_6.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-2023-0266
https://access.redhat.com/security/cve/CVE-2023-0386
https://access.redhat.com/security/updates/classification#important

8. Contact:

The Red Hat security contact is . More contact
details at https://access.redhat.com/security/team/contact

Copyright 2023 Red Hat, Inc.
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