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Red Hat 8.4 RHSA-2022:0822-01 Important: Kernel RT Security Update

red hat
Calendar Grey March 10, 2022
Dist Redhat Esm H88
Critical patch released for kernel-rt in Red Hat Enterprise Linux 8.4, categorized as High Priority by Red Hat Security Team.
An update for kernel-rt is now available for Red Hat Enterprise Linux 8.4 Extended 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-rt packages provide the Real Time Linux Kernel, which enables fine-tuning for systems with extremely high determinism requirements.
Security Fix(es):
* kernel: improper initialization of the "flags" member of the new pipe_buffer (CVE-2022-0847)
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 Red Hat kernel system update security impact Important Real Time Kernel

References

https://access.redhat.com/security/cve/CVE-2022-0847 https://access.redhat.com/security/updates/classification#important https://access.redhat.com/security/vulnerabilities/RHSB-2022-002

Package List

Red Hat Enterprise Linux Real Time for NFV EUS (v.8.4):
Source: kernel-rt-4.18.0-305.40.2.rt7.113.el8_4.src.rpm
x86_64: kernel-rt-4.18.0-305.40.2.rt7.113.el8_4.x86_64.rpm kernel-rt-core-4.18.0-305.40.2.rt7.113.el8_4.x86_64.rpm kernel-rt-debug-4.18.0-305.40.2.rt7.113.el8_4.x86_64.rpm kernel-rt-debug-core-4.18.0-305.40.2.rt7.113.el8_4.x86_64.rpm kernel-rt-debug-debuginfo-4.18.0-305.40.2.rt7.113.el8_4.x86_64.rpm kernel-rt-debug-devel-4.18.0-305.40.2.rt7.113.el8_4.x86_64.rpm kernel-rt-debug-kvm-4.18.0-305.40.2.rt7.113.el8_4.x86_64.rpm kernel-rt-debug-modules-4.18.0-305.40.2.rt7.113.el8_4.x86_64.rpm kernel-rt-debug-modules-extra-4.18.0-305.40.2.rt7.113.el8_4.x86_64.rpm kernel-rt-debuginfo-4.18.0-305.40.2.rt7.113.el8_4.x86_64.rpm kernel-rt-debuginfo-common-x86_64-4.18.0-305.40.2.rt7.113.el8_4.x86_64.rpm kernel-rt-devel-4.18.0-305.40.2.rt7.113.el8_4.x86_64.rpm kernel-rt-kvm-4.18.0-305.40.2.rt7.113.el8_4.x86_64.rpm kernel-rt-modules-4.18.0-305.40.2.rt7.113.el8_4.x86_64.rpm kernel-rt-modules-extra-4.18.0-305.40.2.rt7.113.el8_4.x86_64.rpm
Red Hat Enterprise Linux Real Time EUS (v.8.4):
Source: kernel-rt-4.18.0-305.40.2.rt7.113.el8_4.src.rpm
x86_64: kernel-rt-4.18.0-305.40.2.rt7.113.el8_4.x86_64.rpm kernel-rt-core-4.18.0-305.40.2.rt7.113.el8_4.x86_64.rpm

Read the Full Advisory


Severity
important
Lowest
Low
Medium
High
Critical

Advisory ID: RHSA-2022:0822-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2022:0822
Issue date: 2022-03-10

Topic

An update for kernel-rt is now available for Red Hat Enterprise Linux 8.4Extended Update Support.Red Hat Product Security has rated this update as having a security impactof Important. A Common Vulnerability Scoring System (CVSS) base score,which gives a detailed severity rating, is available for each vulnerabilityfrom the CVE link(s) in the References section.

Topics%20covered

Topics Covered

security advisory Red Hat kernel system update security impact Important Real Time Kernel

Relevant Releases Architectures

Red Hat Enterprise Linux Real Time EUS (v.8.4) - x86_64

Red Hat Enterprise Linux Real Time for NFV EUS (v.8.4) - x86_64

Bugs Fixed

2060795 - CVE-2022-0847 kernel: improper initialization of the "flags" member of the new pipe_buffer

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