Out-of-bounds Write Affecting kernel-core package, versions <0:5.14.0-284.55.1.el9_2
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Test your applications- Snyk ID SNYK-RHEL9-KERNELCORE-6316018
- published 29 Feb 2024
- disclosed 29 Nov 2023
Introduced: 29 Nov 2023
CVE-2023-6931 Open this link in a new tabHow to fix?
Upgrade RHEL:9 kernel-core to version 0:5.14.0-284.55.1.el9_2 or higher.
This issue was patched in RHSA-2024:1018.
NVD Description
Note: Versions mentioned in the description apply only to the upstream kernel-core package and not the kernel-core package as distributed by RHEL.
See How to fix? for RHEL:9 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
- https://access.redhat.com/security/cve/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