Operating System:

[RedHat]

Published:

17 August 2022

Protect yourself against future threats.

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             AUSCERT External Security Bulletin Redistribution

                               ESB-2022.4068
                       kpatch-patch security update
                              17 August 2022

===========================================================================

        AusCERT Security Bulletin Summary
        ---------------------------------

Product:           kpatch-patch
Publisher:         Red Hat
Operating System:  Red Hat
Resolution:        Patch/Upgrade
CVE Names:         CVE-2022-32250  

Original Bulletin: 
   https://access.redhat.com/errata/RHSA-2022:6075

Comment: CVSS (Max):  7.8 CVE-2022-32250 (CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H)
         CVSS Source: Red Hat
         Calculator:  https://www.first.org/cvss/calculator/3.1#CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

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                   Red Hat Security Advisory

Synopsis:          Important: kpatch-patch security update
Advisory ID:       RHSA-2022:6075-01
Product:           Red Hat Enterprise Linux
Advisory URL:      https://access.redhat.com/errata/RHSA-2022:6075
Issue date:        2022-08-16
CVE Names:         CVE-2022-32250 
=====================================================================

1. Summary:

An update 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.

2. Relevant releases/architectures:

Red Hat Enterprise Linux Server E4S (v. 7.7) - 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: a use-after-free write in the netfilter subsystem can lead to
privilege escalation to root (CVE-2022-32250)

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/):

2092427 - CVE-2022-32250 kernel: a use-after-free write in the netfilter subsystem can lead to privilege escalation to root

6. Package List:

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

Source:
kpatch-patch-3_10_0-1062_56_1-1-6.el7.src.rpm
kpatch-patch-3_10_0-1062_59_1-1-4.el7.src.rpm
kpatch-patch-3_10_0-1062_61_1-1-4.el7.src.rpm
kpatch-patch-3_10_0-1062_63_1-1-3.el7.src.rpm
kpatch-patch-3_10_0-1062_66_1-1-2.el7.src.rpm
kpatch-patch-3_10_0-1062_67_1-1-1.el7.src.rpm

ppc64le:
kpatch-patch-3_10_0-1062_56_1-1-6.el7.ppc64le.rpm
kpatch-patch-3_10_0-1062_56_1-debuginfo-1-6.el7.ppc64le.rpm
kpatch-patch-3_10_0-1062_59_1-1-4.el7.ppc64le.rpm
kpatch-patch-3_10_0-1062_59_1-debuginfo-1-4.el7.ppc64le.rpm
kpatch-patch-3_10_0-1062_61_1-1-4.el7.ppc64le.rpm
kpatch-patch-3_10_0-1062_61_1-debuginfo-1-4.el7.ppc64le.rpm
kpatch-patch-3_10_0-1062_63_1-1-3.el7.ppc64le.rpm
kpatch-patch-3_10_0-1062_63_1-debuginfo-1-3.el7.ppc64le.rpm
kpatch-patch-3_10_0-1062_66_1-1-2.el7.ppc64le.rpm
kpatch-patch-3_10_0-1062_66_1-debuginfo-1-2.el7.ppc64le.rpm
kpatch-patch-3_10_0-1062_67_1-1-1.el7.ppc64le.rpm
kpatch-patch-3_10_0-1062_67_1-debuginfo-1-1.el7.ppc64le.rpm

x86_64:
kpatch-patch-3_10_0-1062_56_1-1-6.el7.x86_64.rpm
kpatch-patch-3_10_0-1062_56_1-debuginfo-1-6.el7.x86_64.rpm
kpatch-patch-3_10_0-1062_59_1-1-4.el7.x86_64.rpm
kpatch-patch-3_10_0-1062_59_1-debuginfo-1-4.el7.x86_64.rpm
kpatch-patch-3_10_0-1062_61_1-1-4.el7.x86_64.rpm
kpatch-patch-3_10_0-1062_61_1-debuginfo-1-4.el7.x86_64.rpm
kpatch-patch-3_10_0-1062_63_1-1-3.el7.x86_64.rpm
kpatch-patch-3_10_0-1062_63_1-debuginfo-1-3.el7.x86_64.rpm
kpatch-patch-3_10_0-1062_66_1-1-2.el7.x86_64.rpm
kpatch-patch-3_10_0-1062_66_1-debuginfo-1-2.el7.x86_64.rpm
kpatch-patch-3_10_0-1062_67_1-1-1.el7.x86_64.rpm
kpatch-patch-3_10_0-1062_67_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/

7. References:

https://access.redhat.com/security/cve/CVE-2022-32250
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 2022 Red Hat, Inc.
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