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

===========================================================================
             AUSCERT External Security Bulletin Redistribution

                               ESB-2023.4031
                       kpatch-patch security update
                               19 July 2023

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

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

Product:           kpatch-patch
Publisher:         Red Hat
Operating System:  Red Hat
Resolution:        Patch/Upgrade
CVE Names:         CVE-2023-32233 CVE-2023-1281 

Original Bulletin: 
   https://access.redhat.com/errata/RHSA-2023:4145

Comment: CVSS (Max):  7.8 CVE-2023-32233 (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

- --------------------------BEGIN INCLUDED TEXT--------------------

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

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

Synopsis:          Important: kpatch-patch security update
Advisory ID:       RHSA-2023:4145-01
Product:           Red Hat Enterprise Linux
Advisory URL:      https://access.redhat.com/errata/RHSA-2023:4145
Issue date:        2023-07-18
CVE Names:         CVE-2023-1281 CVE-2023-32233 
=====================================================================

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):

* kernel: tcindex: use-after-free vulnerability in traffic control index
filter allows privilege escalation (CVE-2023-1281)

* kernel: netfilter: use-after-free in nf_tables when processing batch
requests can lead to privilege escalation (CVE-2023-32233)

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/):

2181847 - CVE-2023-1281 kernel: tcindex: use-after-free vulnerability in traffic control index filter allows privilege escalation
2196105 - CVE-2023-32233 kernel: netfilter: use-after-free in nf_tables when processing batch requests can lead to privilege escalation

6. Package List:

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

Source:
kpatch-patch-4_18_0-372_40_1-1-7.el8_6.src.rpm
kpatch-patch-4_18_0-372_41_1-1-6.el8_6.src.rpm
kpatch-patch-4_18_0-372_46_1-1-4.el8_6.src.rpm
kpatch-patch-4_18_0-372_51_1-1-3.el8_6.src.rpm
kpatch-patch-4_18_0-372_52_1-1-2.el8_6.src.rpm
kpatch-patch-4_18_0-372_57_1-1-1.el8_6.src.rpm

ppc64le:
kpatch-patch-4_18_0-372_40_1-1-7.el8_6.ppc64le.rpm
kpatch-patch-4_18_0-372_40_1-debuginfo-1-7.el8_6.ppc64le.rpm
kpatch-patch-4_18_0-372_40_1-debugsource-1-7.el8_6.ppc64le.rpm
kpatch-patch-4_18_0-372_41_1-1-6.el8_6.ppc64le.rpm
kpatch-patch-4_18_0-372_41_1-debuginfo-1-6.el8_6.ppc64le.rpm
kpatch-patch-4_18_0-372_41_1-debugsource-1-6.el8_6.ppc64le.rpm
kpatch-patch-4_18_0-372_46_1-1-4.el8_6.ppc64le.rpm
kpatch-patch-4_18_0-372_46_1-debuginfo-1-4.el8_6.ppc64le.rpm
kpatch-patch-4_18_0-372_46_1-debugsource-1-4.el8_6.ppc64le.rpm
kpatch-patch-4_18_0-372_51_1-1-3.el8_6.ppc64le.rpm
kpatch-patch-4_18_0-372_51_1-debuginfo-1-3.el8_6.ppc64le.rpm
kpatch-patch-4_18_0-372_51_1-debugsource-1-3.el8_6.ppc64le.rpm
kpatch-patch-4_18_0-372_52_1-1-2.el8_6.ppc64le.rpm
kpatch-patch-4_18_0-372_52_1-debuginfo-1-2.el8_6.ppc64le.rpm
kpatch-patch-4_18_0-372_52_1-debugsource-1-2.el8_6.ppc64le.rpm
kpatch-patch-4_18_0-372_57_1-1-1.el8_6.ppc64le.rpm
kpatch-patch-4_18_0-372_57_1-debuginfo-1-1.el8_6.ppc64le.rpm
kpatch-patch-4_18_0-372_57_1-debugsource-1-1.el8_6.ppc64le.rpm

x86_64:
kpatch-patch-4_18_0-372_40_1-1-7.el8_6.x86_64.rpm
kpatch-patch-4_18_0-372_40_1-debuginfo-1-7.el8_6.x86_64.rpm
kpatch-patch-4_18_0-372_40_1-debugsource-1-7.el8_6.x86_64.rpm
kpatch-patch-4_18_0-372_41_1-1-6.el8_6.x86_64.rpm
kpatch-patch-4_18_0-372_41_1-debuginfo-1-6.el8_6.x86_64.rpm
kpatch-patch-4_18_0-372_41_1-debugsource-1-6.el8_6.x86_64.rpm
kpatch-patch-4_18_0-372_46_1-1-4.el8_6.x86_64.rpm
kpatch-patch-4_18_0-372_46_1-debuginfo-1-4.el8_6.x86_64.rpm
kpatch-patch-4_18_0-372_46_1-debugsource-1-4.el8_6.x86_64.rpm
kpatch-patch-4_18_0-372_51_1-1-3.el8_6.x86_64.rpm
kpatch-patch-4_18_0-372_51_1-debuginfo-1-3.el8_6.x86_64.rpm
kpatch-patch-4_18_0-372_51_1-debugsource-1-3.el8_6.x86_64.rpm
kpatch-patch-4_18_0-372_52_1-1-2.el8_6.x86_64.rpm
kpatch-patch-4_18_0-372_52_1-debuginfo-1-2.el8_6.x86_64.rpm
kpatch-patch-4_18_0-372_52_1-debugsource-1-2.el8_6.x86_64.rpm
kpatch-patch-4_18_0-372_57_1-1-1.el8_6.x86_64.rpm
kpatch-patch-4_18_0-372_57_1-debuginfo-1-1.el8_6.x86_64.rpm
kpatch-patch-4_18_0-372_57_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-2023-1281
https://access.redhat.com/security/cve/CVE-2023-32233
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.
- -----BEGIN PGP SIGNATURE-----
Version: GnuPG v1

iQIcBAEBCAAGBQJktmxEAAoJENzjgjWX9erEjuQP/2Q/PR+ih+1EPagta7YD+DpW
w34eWVxaSTkQYOmchnwx64kGVkNvE5AM0ffKwdHhhEnBZmlg4CcxHBJJWgeyS0Mc
xVKHPo+FeoygvxXBQXAqOJcW1IHHSVNWrb9O+ZtT0KYMEqE72iO9WSlw8p+NGjn1
dUqlQBwhzioTNvZRbbfIZOEeCBkpgREQWJTvifFLDcoxa5xUXy/e/t0ba8tOzlBj
/BbJVjO61PLMUeVC9MXTBHh2hC6dq9lDy8WysBT5aeGFG8i8yP5nLlVNNOLgmKHb
u+lG06Fw5Nbl9zio/KBlqTaI4Qcaf++yK1FSPFp358llIBzHVEZNm1DTwsMCFlBU
up0shVM6jk5H9u1ryMKV9MtZzR8+yZCM3NEARjGZ2w/PS8H1uUfKpKzfDF7LeLJH
KozkmsFXEaJHnOwiH4Bg/I88KlUar/tMvLdRJ3pl+cgcfy/+QfkjDd48FsXcN+A3
KbBMcTOYuCDOkOb6GaRLpL78fqI7VfIFU3npD+OjuEclCm6e3VTzCgHOkiJxe3CD
cdWg3xBSNKKNSyW0kxnvQkrLtZ7Yw+972opRJ3Je+tKFBe/y7ca0BReSY35kMOJ0
b80b3FFCYjW23YKWCyJxBnYJns297pwkKfUTTVsC6GVAhFylt29QzTElmEqOOQ2l
aGGAYwD+ed3D2v2YQNiI
=fwG1
- -----END PGP SIGNATURE-----

- --------------------------END INCLUDED TEXT--------------------

You have received this e-mail bulletin as a result of your organisation's
registration with AusCERT. The mailing list you are subscribed to is
maintained within your organisation, so if you do not wish to continue
receiving these bulletins you should contact your local IT manager. If
you do not know who that is, please send an email to auscert@auscert.org.au
and we will forward your request to the appropriate person.

NOTE: Third Party Rights
This security bulletin is provided as a service to AusCERT's members.  As
AusCERT did not write the document quoted above, AusCERT has had no control
over its content. The decision to follow or act on information or advice
contained in this security bulletin is the responsibility of each user or
organisation, and should be considered in accordance with your organisation's
site policies and procedures. AusCERT takes no responsibility for consequences
which may arise from following or acting on information or advice contained in
this security bulletin.

NOTE: This is only the original release of the security bulletin.  It may
not be updated when updates to the original are made.  If downloading at
a later date, it is recommended that the bulletin is retrieved directly
from the author's website to ensure that the information is still current.

Contact information for the authors of the original document is included
in the Security Bulletin above.  If you have any questions or need further
information, please contact them directly.

Previous advisories and external security bulletins can be retrieved from:

        https://www.auscert.org.au/bulletins/

===========================================================================
Australian Computer Emergency Response Team
The University of Queensland
Brisbane
Qld 4072

Internet Email: auscert@auscert.org.au
Facsimile:      (07) 3365 7031
Telephone:      (07) 3365 4417 (International: +61 7 3365 4417)
                AusCERT personnel answer during Queensland business hours
                which are GMT+10:00 (AEST).
                On call after hours for member emergencies only.
===========================================================================
-----BEGIN PGP SIGNATURE-----
Comment: https://auscert.org.au/gpg-key/
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=Va39
-----END PGP SIGNATURE-----