CVE-2021-38198 Affecting kernel-tools-debuginfo package, versions <0:4.14.248-129.473.amzn1


Severity

Recommended
high

Based on Amazon Linux security rating.

Threat Intelligence

EPSS
0.06% (28th percentile)

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  • Snyk IDSNYK-AMZN201803-KERNELTOOLSDEBUGINFO-1728001
  • published5 Oct 2021
  • disclosed8 Aug 2021

Introduced: 8 Aug 2021

CVE-2021-38198  (opens in a new tab)

How to fix?

Upgrade Amazon-Linux:2018.03 kernel-tools-debuginfo to version 0:4.14.248-129.473.amzn1 or higher.
This issue was patched in ALAS-2021-1539.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel-tools-debuginfo package and not the kernel-tools-debuginfo package as distributed by Amazon-Linux. See How to fix? for Amazon-Linux:2018.03 relevant fixed versions and status.

arch/x86/kvm/mmu/paging_tmpl.h in the Linux kernel before 5.12.11 incorrectly computes the access permissions of a shadow page, leading to a missing guest protection page fault.

CVSS Scores

version 3.1