[RHSA-2022:6978-01] Important: kpatch-patch security update

[Security announcements for all Red Hat products and services.]

-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA256

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

Synopsis:          Important: kpatch-patch security update
Advisory ID:       RHSA-2022:6978-01
Product:           Red Hat Enterprise Linux
Advisory URL:      https://access.redhat.com/errata/RHSA-2022:6978
Issue date:        2022-10-18
CVE Names:         CVE-2022-2588 
=====================================================================

1. Summary:

An update is now available for Red Hat Enterprise Linux 8.4 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.8.4) - 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):

* 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.

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/):

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

6. Package List:

Red Hat Enterprise Linux BaseOS EUS (v.8.4):

Source:
kpatch-patch-4_18_0-305_25_1-1-9.el8_4.src.rpm
kpatch-patch-4_18_0-305_45_1-1-3.el8_4.src.rpm
kpatch-patch-4_18_0-305_49_1-1-2.el8_4.src.rpm
kpatch-patch-4_18_0-305_57_1-1-1.el8_4.src.rpm
kpatch-patch-4_18_0-305_62_1-1-1.el8_4.src.rpm

ppc64le:
kpatch-patch-4_18_0-305_25_1-1-9.el8_4.ppc64le.rpm
kpatch-patch-4_18_0-305_25_1-debuginfo-1-9.el8_4.ppc64le.rpm
kpatch-patch-4_18_0-305_25_1-debugsource-1-9.el8_4.ppc64le.rpm
kpatch-patch-4_18_0-305_45_1-1-3.el8_4.ppc64le.rpm
kpatch-patch-4_18_0-305_45_1-debuginfo-1-3.el8_4.ppc64le.rpm
kpatch-patch-4_18_0-305_45_1-debugsource-1-3.el8_4.ppc64le.rpm
kpatch-patch-4_18_0-305_49_1-1-2.el8_4.ppc64le.rpm
kpatch-patch-4_18_0-305_49_1-debuginfo-1-2.el8_4.ppc64le.rpm
kpatch-patch-4_18_0-305_49_1-debugsource-1-2.el8_4.ppc64le.rpm
kpatch-patch-4_18_0-305_57_1-1-1.el8_4.ppc64le.rpm
kpatch-patch-4_18_0-305_57_1-debuginfo-1-1.el8_4.ppc64le.rpm
kpatch-patch-4_18_0-305_57_1-debugsource-1-1.el8_4.ppc64le.rpm
kpatch-patch-4_18_0-305_62_1-1-1.el8_4.ppc64le.rpm
kpatch-patch-4_18_0-305_62_1-debuginfo-1-1.el8_4.ppc64le.rpm
kpatch-patch-4_18_0-305_62_1-debugsource-1-1.el8_4.ppc64le.rpm

x86_64:
kpatch-patch-4_18_0-305_25_1-1-9.el8_4.x86_64.rpm
kpatch-patch-4_18_0-305_25_1-debuginfo-1-9.el8_4.x86_64.rpm
kpatch-patch-4_18_0-305_25_1-debugsource-1-9.el8_4.x86_64.rpm
kpatch-patch-4_18_0-305_45_1-1-3.el8_4.x86_64.rpm
kpatch-patch-4_18_0-305_45_1-debuginfo-1-3.el8_4.x86_64.rpm
kpatch-patch-4_18_0-305_45_1-debugsource-1-3.el8_4.x86_64.rpm
kpatch-patch-4_18_0-305_49_1-1-2.el8_4.x86_64.rpm
kpatch-patch-4_18_0-305_49_1-debuginfo-1-2.el8_4.x86_64.rpm
kpatch-patch-4_18_0-305_49_1-debugsource-1-2.el8_4.x86_64.rpm
kpatch-patch-4_18_0-305_57_1-1-1.el8_4.x86_64.rpm
kpatch-patch-4_18_0-305_57_1-debuginfo-1-1.el8_4.x86_64.rpm
kpatch-patch-4_18_0-305_57_1-debugsource-1-1.el8_4.x86_64.rpm
kpatch-patch-4_18_0-305_62_1-1-1.el8_4.x86_64.rpm
kpatch-patch-4_18_0-305_62_1-debuginfo-1-1.el8_4.x86_64.rpm
kpatch-patch-4_18_0-305_62_1-debugsource-1-1.el8_4.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-2022-2588
https://access.redhat.com/security/updates/classification/#important

8. Contact:

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

Copyright 2022 Red Hat, Inc.
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1
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=ZOUh
-----END PGP SIGNATURE-----