CVE-2021-38198 Affecting kernel package, versions <0:4.14.246-187.474.amzn2
Threat Intelligence
EPSS
0.06% (27th
percentile)
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Test your applications- Snyk ID SNYK-AMZN2-KERNEL-1703240
- published 27 Sep 2021
- disclosed 8 Aug 2021
Introduced: 8 Aug 2021
CVE-2021-38198 Open this link in a new tabHow to fix?
Upgrade Amazon-Linux:2 kernel to version 0:4.14.246-187.474.amzn2 or higher.
This issue was patched in ALAS2-2021-1704.
NVD Description
Note: Versions mentioned in the description apply only to the upstream kernel package and not the kernel package as distributed by Amazon-Linux.
See How to fix? for Amazon-Linux:2 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.
References
- http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-38198
- https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.12.11
- https://github.com/torvalds/linux/commit/b1bd5cba3306691c771d558e94baa73e8b0b96b7
- https://lists.debian.org/debian-lts-announce/2021/10/msg00010.html
- https://lists.debian.org/debian-lts-announce/2021/12/msg00012.html
CVSS Scores
version 3.1