Red Hat Security Advisory 2021-3768-01 – Torchsec
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====================================================================
Red Hat Security Advisory
Synopsis: Important: kpatch-patch security update
Advisory ID: RHSA-2021:3768-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2021:3768
Issue date: 2021-10-12
CVE Names: CVE-2021-22543 CVE-2021-37576
====================================================================
1. Summary:
An update for kpatch-patch is now available for Red Hat Enterprise Linux 7.
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 Server (v. 7) - 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: Improper handling of VM_IO|VM_PFNMAP vmas in KVM can bypass RO
checks (CVE-2021-22543)
* kernel: powerpc: KVM guest OS users can cause host OS memory corruption
(CVE-2021-37576)
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:
Before applying this update, make sure all previously released errata
relevant to your system have been applied.
For details on how to apply this update, refer to:
https://access.redhat.com/articles/11258
5. Bugs fixed (https://bugzilla.redhat.com/):
1965461 - CVE-2021-22543 kernel: Improper handling of VM_IO|VM_PFNMAP vmas in KVM can bypass RO checks
1986506 - CVE-2021-37576 kernel: powerpc: KVM guest OS users can cause host OS memory corruption
6. Package List:
Red Hat Enterprise Linux Server (v. 7):
Source:
kpatch-patch-3_10_0-1160_11_1-1-9.el7.src.rpm
kpatch-patch-3_10_0-1160_15_2-1-9.el7.src.rpm
kpatch-patch-3_10_0-1160_21_1-1-7.el7.src.rpm
kpatch-patch-3_10_0-1160_24_1-1-5.el7.src.rpm
kpatch-patch-3_10_0-1160_25_1-1-5.el7.src.rpm
kpatch-patch-3_10_0-1160_2_1-1-10.el7.src.rpm
kpatch-patch-3_10_0-1160_2_2-1-10.el7.src.rpm
kpatch-patch-3_10_0-1160_31_1-1-4.el7.src.rpm
kpatch-patch-3_10_0-1160_36_2-1-3.el7.src.rpm
kpatch-patch-3_10_0-1160_41_1-1-2.el7.src.rpm
kpatch-patch-3_10_0-1160_42_2-1-1.el7.src.rpm
kpatch-patch-3_10_0-1160_6_1-1-10.el7.src.rpm
ppc64le:
kpatch-patch-3_10_0-1160_11_1-1-9.el7.ppc64le.rpm
kpatch-patch-3_10_0-1160_11_1-debuginfo-1-9.el7.ppc64le.rpm
kpatch-patch-3_10_0-1160_15_2-1-9.el7.ppc64le.rpm
kpatch-patch-3_10_0-1160_15_2-debuginfo-1-9.el7.ppc64le.rpm
kpatch-patch-3_10_0-1160_21_1-1-7.el7.ppc64le.rpm
kpatch-patch-3_10_0-1160_21_1-debuginfo-1-7.el7.ppc64le.rpm
kpatch-patch-3_10_0-1160_24_1-1-5.el7.ppc64le.rpm
kpatch-patch-3_10_0-1160_24_1-debuginfo-1-5.el7.ppc64le.rpm
kpatch-patch-3_10_0-1160_25_1-1-5.el7.ppc64le.rpm
kpatch-patch-3_10_0-1160_25_1-debuginfo-1-5.el7.ppc64le.rpm
kpatch-patch-3_10_0-1160_2_1-1-10.el7.ppc64le.rpm
kpatch-patch-3_10_0-1160_2_1-debuginfo-1-10.el7.ppc64le.rpm
kpatch-patch-3_10_0-1160_2_2-1-10.el7.ppc64le.rpm
kpatch-patch-3_10_0-1160_2_2-debuginfo-1-10.el7.ppc64le.rpm
kpatch-patch-3_10_0-1160_31_1-1-4.el7.ppc64le.rpm
kpatch-patch-3_10_0-1160_31_1-debuginfo-1-4.el7.ppc64le.rpm
kpatch-patch-3_10_0-1160_36_2-1-3.el7.ppc64le.rpm
kpatch-patch-3_10_0-1160_36_2-debuginfo-1-3.el7.ppc64le.rpm
kpatch-patch-3_10_0-1160_41_1-1-2.el7.ppc64le.rpm
kpatch-patch-3_10_0-1160_41_1-debuginfo-1-2.el7.ppc64le.rpm
kpatch-patch-3_10_0-1160_42_2-1-1.el7.ppc64le.rpm
kpatch-patch-3_10_0-1160_42_2-debuginfo-1-1.el7.ppc64le.rpm
kpatch-patch-3_10_0-1160_6_1-1-10.el7.ppc64le.rpm
kpatch-patch-3_10_0-1160_6_1-debuginfo-1-10.el7.ppc64le.rpm
x86_64:
kpatch-patch-3_10_0-1160_11_1-1-9.el7.x86_64.rpm
kpatch-patch-3_10_0-1160_11_1-debuginfo-1-9.el7.x86_64.rpm
kpatch-patch-3_10_0-1160_15_2-1-9.el7.x86_64.rpm
kpatch-patch-3_10_0-1160_15_2-debuginfo-1-9.el7.x86_64.rpm
kpatch-patch-3_10_0-1160_21_1-1-7.el7.x86_64.rpm
kpatch-patch-3_10_0-1160_21_1-debuginfo-1-7.el7.x86_64.rpm
kpatch-patch-3_10_0-1160_24_1-1-5.el7.x86_64.rpm
kpatch-patch-3_10_0-1160_24_1-debuginfo-1-5.el7.x86_64.rpm
kpatch-patch-3_10_0-1160_25_1-1-5.el7.x86_64.rpm
kpatch-patch-3_10_0-1160_25_1-debuginfo-1-5.el7.x86_64.rpm
kpatch-patch-3_10_0-1160_2_1-1-10.el7.x86_64.rpm
kpatch-patch-3_10_0-1160_2_1-debuginfo-1-10.el7.x86_64.rpm
kpatch-patch-3_10_0-1160_2_2-1-10.el7.x86_64.rpm
kpatch-patch-3_10_0-1160_2_2-debuginfo-1-10.el7.x86_64.rpm
kpatch-patch-3_10_0-1160_31_1-1-4.el7.x86_64.rpm
kpatch-patch-3_10_0-1160_31_1-debuginfo-1-4.el7.x86_64.rpm
kpatch-patch-3_10_0-1160_36_2-1-3.el7.x86_64.rpm
kpatch-patch-3_10_0-1160_36_2-debuginfo-1-3.el7.x86_64.rpm
kpatch-patch-3_10_0-1160_41_1-1-2.el7.x86_64.rpm
kpatch-patch-3_10_0-1160_41_1-debuginfo-1-2.el7.x86_64.rpm
kpatch-patch-3_10_0-1160_42_2-1-1.el7.x86_64.rpm
kpatch-patch-3_10_0-1160_42_2-debuginfo-1-1.el7.x86_64.rpm
kpatch-patch-3_10_0-1160_6_1-1-10.el7.x86_64.rpm
kpatch-patch-3_10_0-1160_6_1-debuginfo-1-10.el7.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-2021-22543
https://access.redhat.com/security/cve/CVE-2021-37576
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 2021 Red Hat, Inc.
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