-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA256
=====================================================================
Red Hat Security Advisory
Synopsis: Important: kernel security update
Advisory ID: RHSA-2021:4768-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2021:4768
Issue date: 2021-11-23
CVE Names: CVE-2020-36385 CVE-2021-3653
=====================================================================
1. Summary:
An update for kernel is now available for Red Hat Enterprise Linux 7.3
Advanced 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 Server AUS (v. 7.3) - noarch, x86_64
Red Hat Enterprise Linux Server Optional AUS (v. 7.3) - x86_64
3. Description:
The kernel packages contain the Linux kernel, the core of any Linux
operating system.
Security Fix(es):
* kernel: use-after-free in drivers/infiniband/core/ucma.c ctx
use-after-free (CVE-2020-36385)
* kernel: SVM nested virtualization issue in KVM (AVIC support)
(CVE-2021-3653)
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
The system must be rebooted for this update to take effect.
5. Bugs fixed (https://bugzilla.redhat.com/):
1974319 - CVE-2020-36385 kernel: use-after-free in drivers/infiniband/core/ucma.c ctx use-after-free
1983686 - CVE-2021-3653 kernel: SVM nested virtualization issue in KVM (AVIC support)
6. Package List:
Red Hat Enterprise Linux Server AUS (v. 7.3):
Source:
kernel-3.10.0-514.95.1.el7.src.rpm
noarch:
kernel-abi-whitelists-3.10.0-514.95.1.el7.noarch.rpm
kernel-doc-3.10.0-514.95.1.el7.noarch.rpm
x86_64:
kernel-3.10.0-514.95.1.el7.x86_64.rpm
kernel-debug-3.10.0-514.95.1.el7.x86_64.rpm
kernel-debug-debuginfo-3.10.0-514.95.1.el7.x86_64.rpm
kernel-debug-devel-3.10.0-514.95.1.el7.x86_64.rpm
kernel-debuginfo-3.10.0-514.95.1.el7.x86_64.rpm
kernel-debuginfo-common-x86_64-3.10.0-514.95.1.el7.x86_64.rpm
kernel-devel-3.10.0-514.95.1.el7.x86_64.rpm
kernel-headers-3.10.0-514.95.1.el7.x86_64.rpm
kernel-tools-3.10.0-514.95.1.el7.x86_64.rpm
kernel-tools-debuginfo-3.10.0-514.95.1.el7.x86_64.rpm
kernel-tools-libs-3.10.0-514.95.1.el7.x86_64.rpm
perf-3.10.0-514.95.1.el7.x86_64.rpm
perf-debuginfo-3.10.0-514.95.1.el7.x86_64.rpm
python-perf-3.10.0-514.95.1.el7.x86_64.rpm
python-perf-debuginfo-3.10.0-514.95.1.el7.x86_64.rpm
Red Hat Enterprise Linux Server Optional AUS (v. 7.3):
x86_64:
kernel-debug-debuginfo-3.10.0-514.95.1.el7.x86_64.rpm
kernel-debuginfo-3.10.0-514.95.1.el7.x86_64.rpm
kernel-debuginfo-common-x86_64-3.10.0-514.95.1.el7.x86_64.rpm
kernel-tools-debuginfo-3.10.0-514.95.1.el7.x86_64.rpm
kernel-tools-libs-devel-3.10.0-514.95.1.el7.x86_64.rpm
perf-debuginfo-3.10.0-514.95.1.el7.x86_64.rpm
python-perf-debuginfo-3.10.0-514.95.1.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-2020-36385
https://access.redhat.com/security/cve/CVE-2021-3653
https://access.redhat.com/security/updates/classification/#important
8. Contact:
The Red Hat security contact is <[email protected]>. More contact
details at https://access.redhat.com/security/team/contact/
Copyright 2021 Red Hat, Inc.
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1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=ek4h
-----END PGP SIGNATURE-----
--
RHSA-announce mailing list
[email protected]
https://listman.redhat.com/mailman/listinfo/rhsa-announce
