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Red Hat Security Advisory 2023-4380-01

Red Hat Security Advisory 2023-4380-01
Posted Aug 1, 2023
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2023-4380-01 - 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. Issues addressed include an out of bounds write vulnerability.

tags | advisory, kernel
systems | linux, redhat
advisories | CVE-2023-3090, CVE-2023-35788
SHA-256 | 76bfd0b219a147940968b013bcf9113ef82e3d224d1f4bfe49d0f729cfd55716

Red Hat Security Advisory 2023-4380-01

Change Mirror Download
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=====================================================================
Red Hat Security Advisory

Synopsis: Important: kpatch-patch security update
Advisory ID: RHSA-2023:4380-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2023:4380
Issue date: 2023-08-01
CVE Names: CVE-2023-3090 CVE-2023-35788
=====================================================================

1. Summary:

An update for kpatch-patch is now available for Red Hat Enterprise Linux 9.

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 (v. 9) - 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: ipvlan: out-of-bounds write caused by unclear skb->cb
(CVE-2023-3090)

* kernel: cls_flower: out-of-bounds write in fl_set_geneve_opt()
(CVE-2023-35788)

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/):

2215768 - CVE-2023-35788 kernel: cls_flower: out-of-bounds write in fl_set_geneve_opt()
2218672 - CVE-2023-3090 kernel: ipvlan: out-of-bounds write caused by unclear skb->cb

6. Package List:

Red Hat Enterprise Linux BaseOS (v. 9):

Source:
kpatch-patch-5_14_0-284_11_1-1-2.el9_2.src.rpm
kpatch-patch-5_14_0-284_18_1-1-1.el9_2.src.rpm

ppc64le:
kpatch-patch-5_14_0-284_11_1-1-2.el9_2.ppc64le.rpm
kpatch-patch-5_14_0-284_11_1-debuginfo-1-2.el9_2.ppc64le.rpm
kpatch-patch-5_14_0-284_11_1-debugsource-1-2.el9_2.ppc64le.rpm
kpatch-patch-5_14_0-284_18_1-1-1.el9_2.ppc64le.rpm
kpatch-patch-5_14_0-284_18_1-debuginfo-1-1.el9_2.ppc64le.rpm
kpatch-patch-5_14_0-284_18_1-debugsource-1-1.el9_2.ppc64le.rpm

x86_64:
kpatch-patch-5_14_0-284_11_1-1-2.el9_2.x86_64.rpm
kpatch-patch-5_14_0-284_11_1-debuginfo-1-2.el9_2.x86_64.rpm
kpatch-patch-5_14_0-284_11_1-debugsource-1-2.el9_2.x86_64.rpm
kpatch-patch-5_14_0-284_18_1-1-1.el9_2.x86_64.rpm
kpatch-patch-5_14_0-284_18_1-debuginfo-1-1.el9_2.x86_64.rpm
kpatch-patch-5_14_0-284_18_1-debugsource-1-1.el9_2.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-2023-3090
https://access.redhat.com/security/cve/CVE-2023-35788
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.
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