NULL Pointer Dereference Affecting kernel-rt-debug-kvm package, versions <0:4.18.0-425.3.1.rt7.213.el8


Severity

Recommended
0.0
medium
0
10

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
0.06% (26th percentile)

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  • Snyk IDSNYK-RHEL8-KERNELRTDEBUGKVM-4352755
  • published1 Aug 2022
  • disclosed10 Feb 2020

Introduced: 10 Feb 2020

CVE-2020-36558  (opens in a new tab)
CWE-476  (opens in a new tab)

How to fix?

Upgrade RHEL:8 kernel-rt-debug-kvm to version 0:4.18.0-425.3.1.rt7.213.el8 or higher.
This issue was patched in RHSA-2022:7444.

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.

A race condition in the Linux kernel before 5.5.7 involving VT_RESIZEX could lead to a NULL pointer dereference and general protection fault.

CVSS Scores

version 3.1