Out-of-bounds Write Affecting kernel-rt-kvm package, versions <0:4.18.0-513.18.1.rt7.320.el8_9
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Test your applications- Snyk ID SNYK-CENTOS8-KERNELRTKVM-6038990
- published 30 Oct 2023
- disclosed 25 Oct 2023
Introduced: 25 Oct 2023
CVE-2023-5717 Open this link in a new tabHow to fix?
Upgrade Centos:8 kernel-rt-kvm to version 0:4.18.0-513.18.1.rt7.320.el8_9 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream kernel-rt-kvm package and not the kernel-rt-kvm package as distributed by Centos.
See How to fix? for Centos:8 relevant fixed versions and status.
A heap out-of-bounds write vulnerability in the Linux kernel's Linux Kernel Performance Events (perf) component can be exploited to achieve local privilege escalation.
If perf_read_group() is called while an event's sibling_list is smaller than its child's sibling_list, it can increment or write to memory locations outside of the allocated buffer.
We recommend upgrading past commit 32671e3799ca2e4590773fd0e63aaa4229e50c06.
References
- https://access.redhat.com/security/cve/CVE-2023-5717
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/kernel/events?id=32671e3799ca2e4590773fd0e63aaa4229e50c06
- https://kernel.dance/32671e3799ca2e4590773fd0e63aaa4229e50c06
- https://lists.debian.org/debian-lts-announce/2024/01/msg00004.html
- https://lists.debian.org/debian-lts-announce/2024/01/msg00005.html