Use After Free Affecting kernel package, versions <0:4.14.294-220.533.amzn2
Threat Intelligence
EPSS
0.04% (6th
percentile)
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Test your applications- Snyk ID SNYK-AMZN2-KERNEL-3042906
- published 12 Oct 2022
- disclosed 9 Sep 2022
Introduced: 9 Sep 2022
CVE-2022-40307 Open this link in a new tabHow to fix?
Upgrade Amazon-Linux:2 kernel to version 0:4.14.294-220.533.amzn2 or higher.
This issue was patched in ALAS2-2022-1852.
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.
An issue was discovered in the Linux kernel through 5.19.8. drivers/firmware/efi/capsule-loader.c has a race condition with a resultant use-after-free.
References
- http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-40307
- https://github.com/torvalds/linux/commit/9cb636b5f6a8cc6d1b50809ec8f8d33ae0c84c95
- https://lists.debian.org/debian-lts-announce/2022/10/msg00000.html
- https://lists.debian.org/debian-lts-announce/2022/11/msg00001.html
- https://www.debian.org/security/2022/dsa-5257
CVSS Scores
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