Home / mailings [RHSA-2023:4888-01] Important: kpatch-patch security update
Posted on 31 August 2023
RedHat===================================================================== Red Hat Security Advisory
Synopsis: Important: kpatch-patch security update
Advisory ID: RHSA-2023:4888-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2023:4888
Issue date: 2023-08-30
CVE Names: CVE-2022-42896 CVE-2023-1829 CVE-2023-3390
CVE-2023-35788
=====================================================================
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: use-after-free in l2cap_connect and l2cap_le_connect_req in
net/bluetooth/l2cap_core.c (CVE-2022-42896)
* kernel: Use-after-free vulnerability in the Linux Kernel traffic control
index filter (CVE-2023-1829)
* kernel: UAF in nftables when nft_set_lookup_global triggered after
handling named and anonymous sets in batch requests (CVE-2023-3390)
* 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/):
2147364 - CVE-2022-42896 kernel: use-after-free in l2cap_connect and l2cap_le_connect_req in net/bluetooth/l2cap_core.c
2188470 - CVE-2023-1829 kernel: Use-after-free vulnerability in the Linux Kernel traffic control index filter
2213260 - CVE-2023-3390 kernel: UAF in nftables when nft_set_lookup_global triggered after handling named and anonymous sets in batch requests
2215768 - CVE-2023-35788 kernel: cls_flower: out-of-bounds write in fl_set_geneve_opt()
6. Package List:
Red Hat Enterprise Linux BaseOS EUS (v.8.6):
Source:
kpatch-patch-4_18_0-372_41_1-1-7.el8_6.src.rpm
kpatch-patch-4_18_0-372_46_1-1-5.el8_6.src.rpm
kpatch-patch-4_18_0-372_51_1-1-4.el8_6.src.rpm
kpatch-patch-4_18_0-372_52_1-1-3.el8_6.src.rpm
kpatch-patch-4_18_0-372_57_1-1-2.el8_6.src.rpm
kpatch-patch-4_18_0-372_64_1-1-1.el8_6.src.rpm
ppc64le:
kpatch-patch-4_18_0-372_41_1-1-7.el8_6.ppc64le.rpm
kpatch-patch-4_18_0-372_41_1-debuginfo-1-7.el8_6.ppc64le.rpm
kpatch-patch-4_18_0-372_41_1-debugsource-1-7.el8_6.ppc64le.rpm
kpatch-patch-4_18_0-372_46_1-1-5.el8_6.ppc64le.rpm
kpatch-patch-4_18_0-372_46_1-debuginfo-1-5.el8_6.ppc64le.rpm
kpatch-patch-4_18_0-372_46_1-debugsource-1-5.el8_6.ppc64le.rpm
kpatch-patch-4_18_0-372_51_1-1-4.el8_6.ppc64le.rpm
kpatch-patch-4_18_0-372_51_1-debuginfo-1-4.el8_6.ppc64le.rpm
kpatch-patch-4_18_0-372_51_1-debugsource-1-4.el8_6.ppc64le.rpm
kpatch-patch-4_18_0-372_52_1-1-3.el8_6.ppc64le.rpm
kpatch-patch-4_18_0-372_52_1-debuginfo-1-3.el8_6.ppc64le.rpm
kpatch-patch-4_18_0-372_52_1-debugsource-1-3.el8_6.ppc64le.rpm
kpatch-patch-4_18_0-372_57_1-1-2.el8_6.ppc64le.rpm
kpatch-patch-4_18_0-372_57_1-debuginfo-1-2.el8_6.ppc64le.rpm
kpatch-patch-4_18_0-372_57_1-debugsource-1-2.el8_6.ppc64le.rpm
kpatch-patch-4_18_0-372_64_1-1-1.el8_6.ppc64le.rpm
kpatch-patch-4_18_0-372_64_1-debuginfo-1-1.el8_6.ppc64le.rpm
kpatch-patch-4_18_0-372_64_1-debugsource-1-1.el8_6.ppc64le.rpm
x86_64:
kpatch-patch-4_18_0-372_41_1-1-7.el8_6.x86_64.rpm
kpatch-patch-4_18_0-372_41_1-debuginfo-1-7.el8_6.x86_64.rpm
kpatch-patch-4_18_0-372_41_1-debugsource-1-7.el8_6.x86_64.rpm
kpatch-patch-4_18_0-372_46_1-1-5.el8_6.x86_64.rpm
kpatch-patch-4_18_0-372_46_1-debuginfo-1-5.el8_6.x86_64.rpm
kpatch-patch-4_18_0-372_46_1-debugsource-1-5.el8_6.x86_64.rpm
kpatch-patch-4_18_0-372_51_1-1-4.el8_6.x86_64.rpm
kpatch-patch-4_18_0-372_51_1-debuginfo-1-4.el8_6.x86_64.rpm
kpatch-patch-4_18_0-372_51_1-debugsource-1-4.el8_6.x86_64.rpm
kpatch-patch-4_18_0-372_52_1-1-3.el8_6.x86_64.rpm
kpatch-patch-4_18_0-372_52_1-debuginfo-1-3.el8_6.x86_64.rpm
kpatch-patch-4_18_0-372_52_1-debugsource-1-3.el8_6.x86_64.rpm
kpatch-patch-4_18_0-372_57_1-1-2.el8_6.x86_64.rpm
kpatch-patch-4_18_0-372_57_1-debuginfo-1-2.el8_6.x86_64.rpm
kpatch-patch-4_18_0-372_57_1-debugsource-1-2.el8_6.x86_64.rpm
kpatch-patch-4_18_0-372_64_1-1-1.el8_6.x86_64.rpm
kpatch-patch-4_18_0-372_64_1-debuginfo-1-1.el8_6.x86_64.rpm
kpatch-patch-4_18_0-372_64_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-2022-42896
https://access.redhat.com/security/cve/CVE-2023-1829
https://access.redhat.com/security/cve/CVE-2023-3390
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.
