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Red Hat Security Advisory 2023-4023-01

Red Hat Security Advisory 2023-4023-01 - The kpatch management tool provides a kernel patching infrastructure which allows you to patch a running kernel without rebooting or restarting any processes. Issues addressed include privilege escalation and use-after-free vulnerabilities.

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

Synopsis: Important: kpatch-patch security update
Advisory ID: RHSA-2023:4023-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2023:4023
Issue date: 2023-07-11
CVE Names: CVE-2022-2588
=====================================================================

  1. Summary:

An update for kpatch-patch is now available for Red Hat Enterprise Linux
7.7 Update Services for SAP Solutions.

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.

  1. Relevant releases/architectures:

Red Hat Enterprise Linux Server E4S (v. 7.7) - ppc64le, x86_64

  1. Description:

The kpatch management tool provides a kernel patching infrastructure which
allows you to patch a running kernel without rebooting or restarting any
processes.

Security Fix(es):

  • kernel: 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.

  1. 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

  1. 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

  1. Package List:

Red Hat Enterprise Linux Server E4S (v. 7.7):

Source:
kpatch-patch-3_10_0-1062_71_1-1-2.el7.src.rpm
kpatch-patch-3_10_0-1062_72_1-1-1.el7.src.rpm

ppc64le:
kpatch-patch-3_10_0-1062_71_1-1-2.el7.ppc64le.rpm
kpatch-patch-3_10_0-1062_71_1-debuginfo-1-2.el7.ppc64le.rpm
kpatch-patch-3_10_0-1062_72_1-1-1.el7.ppc64le.rpm
kpatch-patch-3_10_0-1062_72_1-debuginfo-1-1.el7.ppc64le.rpm

x86_64:
kpatch-patch-3_10_0-1062_71_1-1-2.el7.x86_64.rpm
kpatch-patch-3_10_0-1062_71_1-debuginfo-1-2.el7.x86_64.rpm
kpatch-patch-3_10_0-1062_72_1-1-1.el7.x86_64.rpm
kpatch-patch-3_10_0-1062_72_1-debuginfo-1-1.el7.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/

  1. References:

https://access.redhat.com/security/cve/CVE-2022-2588
https://access.redhat.com/security/updates/classification/#important

  1. Contact:

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

Copyright 2023 Red Hat, Inc.
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