Protect yourself against future threats.
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AUSCERT External Security Bulletin Redistribution
ESB-2022.6547
kpatch-patch security update
16 December 2022
===========================================================================
AusCERT Security Bulletin Summary
---------------------------------
Product: kpatch-patch
Publisher: Red Hat
Operating System: Red Hat
Resolution: Patch/Upgrade
CVE Names: CVE-2022-43945 CVE-2022-2959 CVE-2022-2639
CVE-2022-1158
Original Bulletin:
https://access.redhat.com/errata/RHSA-2022:9082
Comment: CVSS (Max): 7.8 CVE-2022-2639 (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-2022:9082-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2022:9082
Issue date: 2022-12-15
CVE Names: CVE-2022-1158 CVE-2022-2639 CVE-2022-2959
CVE-2022-43945
=====================================================================
1. Summary:
An update for kpatch-patch is now available for Red Hat Enterprise Linux
9.0 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.9.0) - 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: KVM: cmpxchg_gpte can write to pfns outside the userspace region
(CVE-2022-1158)
* kernel: openvswitch: integer underflow leads to out-of-bounds write in
reserve_sfa_size() (CVE-2022-2639)
* kernel: watch queue race condition can lead to privilege escalation
(CVE-2022-2959)
* kernel: nfsd buffer overflow by RPC message over TCP with garbage data
(CVE-2022-43945)
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/):
2069793 - CVE-2022-1158 kernel: KVM: cmpxchg_gpte can write to pfns outside the userspace region
2084479 - CVE-2022-2639 kernel: openvswitch: integer underflow leads to out-of-bounds write in reserve_sfa_size()
2103681 - CVE-2022-2959 kernel: watch queue race condition can lead to privilege escalation
2141752 - CVE-2022-43945 kernel: nfsd buffer overflow by RPC message over TCP with garbage data
6. Package List:
Red Hat Enterprise Linux BaseOS EUS (v.9.0):
Source:
kpatch-patch-5_14_0-70_13_1-1-5.el9_0.src.rpm
kpatch-patch-5_14_0-70_17_1-1-4.el9_0.src.rpm
kpatch-patch-5_14_0-70_22_1-1-4.el9_0.src.rpm
kpatch-patch-5_14_0-70_26_1-1-3.el9_0.src.rpm
kpatch-patch-5_14_0-70_30_1-1-1.el9_0.src.rpm
ppc64le:
kpatch-patch-5_14_0-70_13_1-1-5.el9_0.ppc64le.rpm
kpatch-patch-5_14_0-70_13_1-debuginfo-1-5.el9_0.ppc64le.rpm
kpatch-patch-5_14_0-70_13_1-debugsource-1-5.el9_0.ppc64le.rpm
kpatch-patch-5_14_0-70_17_1-1-4.el9_0.ppc64le.rpm
kpatch-patch-5_14_0-70_17_1-debuginfo-1-4.el9_0.ppc64le.rpm
kpatch-patch-5_14_0-70_17_1-debugsource-1-4.el9_0.ppc64le.rpm
kpatch-patch-5_14_0-70_22_1-1-4.el9_0.ppc64le.rpm
kpatch-patch-5_14_0-70_22_1-debuginfo-1-4.el9_0.ppc64le.rpm
kpatch-patch-5_14_0-70_22_1-debugsource-1-4.el9_0.ppc64le.rpm
kpatch-patch-5_14_0-70_26_1-1-3.el9_0.ppc64le.rpm
kpatch-patch-5_14_0-70_26_1-debuginfo-1-3.el9_0.ppc64le.rpm
kpatch-patch-5_14_0-70_26_1-debugsource-1-3.el9_0.ppc64le.rpm
kpatch-patch-5_14_0-70_30_1-1-1.el9_0.ppc64le.rpm
kpatch-patch-5_14_0-70_30_1-debuginfo-1-1.el9_0.ppc64le.rpm
kpatch-patch-5_14_0-70_30_1-debugsource-1-1.el9_0.ppc64le.rpm
x86_64:
kpatch-patch-5_14_0-70_13_1-1-5.el9_0.x86_64.rpm
kpatch-patch-5_14_0-70_13_1-debuginfo-1-5.el9_0.x86_64.rpm
kpatch-patch-5_14_0-70_13_1-debugsource-1-5.el9_0.x86_64.rpm
kpatch-patch-5_14_0-70_17_1-1-4.el9_0.x86_64.rpm
kpatch-patch-5_14_0-70_17_1-debuginfo-1-4.el9_0.x86_64.rpm
kpatch-patch-5_14_0-70_17_1-debugsource-1-4.el9_0.x86_64.rpm
kpatch-patch-5_14_0-70_22_1-1-4.el9_0.x86_64.rpm
kpatch-patch-5_14_0-70_22_1-debuginfo-1-4.el9_0.x86_64.rpm
kpatch-patch-5_14_0-70_22_1-debugsource-1-4.el9_0.x86_64.rpm
kpatch-patch-5_14_0-70_26_1-1-3.el9_0.x86_64.rpm
kpatch-patch-5_14_0-70_26_1-debuginfo-1-3.el9_0.x86_64.rpm
kpatch-patch-5_14_0-70_26_1-debugsource-1-3.el9_0.x86_64.rpm
kpatch-patch-5_14_0-70_30_1-1-1.el9_0.x86_64.rpm
kpatch-patch-5_14_0-70_30_1-debuginfo-1-1.el9_0.x86_64.rpm
kpatch-patch-5_14_0-70_30_1-debugsource-1-1.el9_0.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-2022-1158
https://access.redhat.com/security/cve/CVE-2022-2639
https://access.redhat.com/security/cve/CVE-2022-2959
https://access.redhat.com/security/cve/CVE-2022-43945
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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