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Red Hat 7.3: RHSA-2021-0848-01 Moderate: Kernel Update Details

red hat
Calendar Grey March 16, 2021
Dist Redhat Esm H88
A kernel enhancement in Red Hat Enterprise Linux 7.3 resolves a moderate security vulnerability associated with performance monitoring capabilities.
An update for kernel is now available for Red Hat Enterprise Linux 7.3 Advanced Update Support

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.

Summary

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.

Topics%20covered

Topics Covered

security advisory moderate security issue buffer overflow kernel update Red Hat Enterprise Linux moderate severity Red Hat Enterprise system reboot performance counter

References

https://access.redhat.com/security/cve/CVE-2020-14351 https://access.redhat.com/security/updates/classification#moderate

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

Read the Full Advisory


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

Topic

An update for kernel is now available for Red Hat Enterprise Linux 7.3Advanced Update Support.Red Hat Product Security has rated this update as having a security impactof Moderate. A Common Vulnerability Scoring System (CVSS) base score, whichgives a detailed severity rating, is available for each vulnerability fromthe CVE link(s) in the References section.

Topics%20covered

Topics Covered

security advisory moderate security issue buffer overflow kernel update Red Hat Enterprise Linux moderate severity Red Hat Enterprise system reboot performance counter

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

Bugs Fixed

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

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