CVE-2021-26401 Affecting kernel-rt-debug-kvm package, versions <0:4.18.0-372.9.1.rt7.166.el8


Severity

Recommended
high

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
0.04% (15th percentile)

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  • Snyk IDSNYK-RHEL8-KERNELRTDEBUGKVM-4272201
  • published11 May 2022
  • disclosed8 Mar 2022

Introduced: 8 Mar 2022

CVE-2021-26401  (opens in a new tab)

How to fix?

Upgrade RHEL:8 kernel-rt-debug-kvm to version 0:4.18.0-372.9.1.rt7.166.el8 or higher.
This issue was patched in RHSA-2022:1975.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel-rt-debug-kvm package and not the kernel-rt-debug-kvm package as distributed by RHEL. See How to fix? for RHEL:8 relevant fixed versions and status.

LFENCE/JMP (mitigation V2-2) may not sufficiently mitigate CVE-2017-5715 on some AMD CPUs.

CVSS Scores

version 3.1