what you don't know can hurt you

Red Hat Security Advisory 2021-4768-01

Red Hat Security Advisory 2021-4768-01
Posted Nov 23, 2021
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2021-4768-01 - The kernel packages contain the Linux kernel, the core of any Linux operating system. Issues addressed include a use-after-free vulnerability.

tags | advisory, kernel
systems | linux, redhat
advisories | CVE-2020-36385, CVE-2021-3653
MD5 | ea6d0e4f074f84c1346e819a6d4be6cb

Red Hat Security Advisory 2021-4768-01

Change Mirror Download
-----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 <secalert@redhat.com>. 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
RHSA-announce@redhat.com
https://listman.redhat.com/mailman/listinfo/rhsa-announce
Login or Register to add favorites

File Archive:

December 2021

  • Su
  • Mo
  • Tu
  • We
  • Th
  • Fr
  • Sa
  • 1
    Dec 1st
    18 Files
  • 2
    Dec 2nd
    11 Files
  • 3
    Dec 3rd
    23 Files
  • 4
    Dec 4th
    0 Files
  • 5
    Dec 5th
    0 Files
  • 6
    Dec 6th
    13 Files
  • 7
    Dec 7th
    12 Files
  • 8
    Dec 8th
    0 Files
  • 9
    Dec 9th
    0 Files
  • 10
    Dec 10th
    0 Files
  • 11
    Dec 11th
    0 Files
  • 12
    Dec 12th
    0 Files
  • 13
    Dec 13th
    0 Files
  • 14
    Dec 14th
    0 Files
  • 15
    Dec 15th
    0 Files
  • 16
    Dec 16th
    0 Files
  • 17
    Dec 17th
    0 Files
  • 18
    Dec 18th
    0 Files
  • 19
    Dec 19th
    0 Files
  • 20
    Dec 20th
    0 Files
  • 21
    Dec 21st
    0 Files
  • 22
    Dec 22nd
    0 Files
  • 23
    Dec 23rd
    0 Files
  • 24
    Dec 24th
    0 Files
  • 25
    Dec 25th
    0 Files
  • 26
    Dec 26th
    0 Files
  • 27
    Dec 27th
    0 Files
  • 28
    Dec 28th
    0 Files
  • 29
    Dec 29th
    0 Files
  • 30
    Dec 30th
    0 Files
  • 31
    Dec 31st
    0 Files

Top Authors In Last 30 Days

File Tags

Systems

packet storm

© 2020 Packet Storm. All rights reserved.

Services
Security Services
Hosting By
Rokasec
close