Out-of-bounds Write Affecting kernel package, versions <0:4.14.336-255.557.amzn2
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Test your applications- Snyk ID SNYK-AMZN2-KERNEL-6228691
- published 6 Feb 2024
- disclosed 19 Dec 2023
Introduced: 19 Dec 2023
CVE-2023-6931 Open this link in a new tabHow to fix?
Upgrade Amazon-Linux:2 kernel to version 0:4.14.336-255.557.amzn2 or higher.
This issue was patched in ALAS2-2024-2443.
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.
A heap out-of-bounds write vulnerability in the Linux kernel's Performance Events system component can be exploited to achieve local privilege escalation.
A perf_event's read_size can overflow, leading to an heap out-of-bounds increment or write in perf_read_group().
We recommend upgrading past commit 382c27f4ed28f803b1f1473ac2d8db0afc795a1b.
References
- http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-6931
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=382c27f4ed28f803b1f1473ac2d8db0afc795a1b
- https://kernel.dance/382c27f4ed28f803b1f1473ac2d8db0afc795a1b
- https://lists.debian.org/debian-lts-announce/2024/01/msg00004.html
- https://lists.debian.org/debian-lts-announce/2024/01/msg00005.html