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Red Hat Security Advisory 2021-0848-01

Red Hat Security Advisory 2021-0848-01
Posted Mar 16, 2021
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2021-0848-01 - 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-2020-14351
MD5 | 1523f51328a454e1a478dda9892a8fce

Red Hat Security Advisory 2021-0848-01

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=====================================================================
Red Hat Security Advisory

Synopsis: Moderate: kernel security update
Advisory ID: RHSA-2021:0848-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2021:0848
Issue date: 2021-03-16
CVE Names: CVE-2020-14351
=====================================================================

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 Moderate. 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: performance counters race condition use-after-free
(CVE-2020-14351)

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/):

1862849 - CVE-2020-14351 kernel: performance counters race condition use-after-free

6. Package List:

Red Hat Enterprise Linux Server AUS (v. 7.3):

Source:
kernel-3.10.0-514.86.1.el7.src.rpm

noarch:
kernel-abi-whitelists-3.10.0-514.86.1.el7.noarch.rpm
kernel-doc-3.10.0-514.86.1.el7.noarch.rpm

x86_64:
kernel-3.10.0-514.86.1.el7.x86_64.rpm
kernel-debug-3.10.0-514.86.1.el7.x86_64.rpm
kernel-debug-debuginfo-3.10.0-514.86.1.el7.x86_64.rpm
kernel-debug-devel-3.10.0-514.86.1.el7.x86_64.rpm
kernel-debuginfo-3.10.0-514.86.1.el7.x86_64.rpm
kernel-debuginfo-common-x86_64-3.10.0-514.86.1.el7.x86_64.rpm
kernel-devel-3.10.0-514.86.1.el7.x86_64.rpm
kernel-headers-3.10.0-514.86.1.el7.x86_64.rpm
kernel-tools-3.10.0-514.86.1.el7.x86_64.rpm
kernel-tools-debuginfo-3.10.0-514.86.1.el7.x86_64.rpm
kernel-tools-libs-3.10.0-514.86.1.el7.x86_64.rpm
perf-3.10.0-514.86.1.el7.x86_64.rpm
perf-debuginfo-3.10.0-514.86.1.el7.x86_64.rpm
python-perf-3.10.0-514.86.1.el7.x86_64.rpm
python-perf-debuginfo-3.10.0-514.86.1.el7.x86_64.rpm

Red Hat Enterprise Linux Server Optional AUS (v. 7.3):

x86_64:
kernel-debug-debuginfo-3.10.0-514.86.1.el7.x86_64.rpm
kernel-debuginfo-3.10.0-514.86.1.el7.x86_64.rpm
kernel-debuginfo-common-x86_64-3.10.0-514.86.1.el7.x86_64.rpm
kernel-tools-debuginfo-3.10.0-514.86.1.el7.x86_64.rpm
kernel-tools-libs-devel-3.10.0-514.86.1.el7.x86_64.rpm
perf-debuginfo-3.10.0-514.86.1.el7.x86_64.rpm
python-perf-debuginfo-3.10.0-514.86.1.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-2020-14351
https://access.redhat.com/security/updates/classification/#moderate

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.
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