Use After Free Affecting kernel-rt-kvm package, versions <0:4.18.0-425.3.1.rt7.213.el8


Severity

Recommended
medium

Based on CentOS security rating.

Threat Intelligence

EPSS
0.04% (15th percentile)

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  • Snyk IDSNYK-CENTOS8-KERNELRTKVM-2988900
  • published23 Aug 2022
  • disclosed10 Jan 2022

Introduced: 10 Jan 2022

CVE-2022-2938  (opens in a new tab)
CWE-416  (opens in a new tab)

How to fix?

Upgrade Centos:8 kernel-rt-kvm to version 0:4.18.0-425.3.1.rt7.213.el8 or higher.

NVD Description

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

A flaw was found in the Linux kernel's implementation of Pressure Stall Information. While the feature is disabled by default, it could allow an attacker to crash the system or have other memory-corruption side effects.

CVSS Scores

version 3.1