Red Hat Security Advisory 2022-5214-01 – Torchsec
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Red Hat Security Advisory
Synopsis: Important: kpatch-patch security update
Advisory ID: RHSA-2022:5214-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2022:5214
Issue date: 2022-06-28
CVE Names: CVE-2022-1012 CVE-2022-1966 CVE-2022-27666
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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: Small table perturb size in the TCP source port generation
algorithm can lead to information leak (CVE-2022-1012)
* kernel: a use-after-free write in the netfilter subsystem can lead to
privilege escalation to root (CVE-2022-1966)
* kernel: buffer overflow in IPsec ESP transformation code (CVE-2022-27666)
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/):
2061633 - CVE-2022-27666 kernel: buffer overflow in IPsec ESP transformation code
2064604 - CVE-2022-1012 kernel: Small table perturb size in the TCP source port generation algorithm can lead to information leak
2092427 - CVE-2022-1966 kernel: a use-after-free write in the netfilter subsystem can lead to privilege escalation to root
6. Package List:
Red Hat Enterprise Linux BaseOS (v. 9):
Source:
kpatch-patch-5_14_0-70_13_1-1-1.el9_0.src.rpm
ppc64le:
kpatch-patch-5_14_0-70_13_1-1-1.el9_0.ppc64le.rpm
kpatch-patch-5_14_0-70_13_1-debuginfo-1-1.el9_0.ppc64le.rpm
kpatch-patch-5_14_0-70_13_1-debugsource-1-1.el9_0.ppc64le.rpm
x86_64:
kpatch-patch-5_14_0-70_13_1-1-1.el9_0.x86_64.rpm
kpatch-patch-5_14_0-70_13_1-debuginfo-1-1.el9_0.x86_64.rpm
kpatch-patch-5_14_0-70_13_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-2022-1012
https://access.redhat.com/security/cve/CVE-2022-1966
https://access.redhat.com/security/cve/CVE-2022-27666
https://access.redhat.com/security/updates/classification/#important
8. Contact:
The Red Hat security contact is
details at https://access.redhat.com/security/team/contact/
Copyright 2022 Red Hat, Inc.
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