Use After Free Affecting bpftool package, versions <0:4.18.0-553.el8_10
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Test your applications- Snyk ID SNYK-CENTOS8-BPFTOOL-6133071
- published 20 Dec 2023
- disclosed 19 Dec 2023
Introduced: 19 Dec 2023
CVE-2023-6932 Open this link in a new tabHow to fix?
Upgrade Centos:8 bpftool to version 0:4.18.0-553.el8_10 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream bpftool package and not the bpftool package as distributed by Centos.
See How to fix? for Centos:8 relevant fixed versions and status.
A use-after-free vulnerability in the Linux kernel's ipv4: igmp component can be exploited to achieve local privilege escalation.
A race condition can be exploited to cause a timer be mistakenly registered on a RCU read locked object which is freed by another thread.
We recommend upgrading past commit e2b706c691905fe78468c361aaabc719d0a496f1.
References
- https://access.redhat.com/security/cve/CVE-2023-6932
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit?id=e2b706c691905fe78468c361aaabc719d0a496f1
- https://kernel.dance/e2b706c691905fe78468c361aaabc719d0a496f1
- https://lists.debian.org/debian-lts-announce/2024/01/msg00004.html
- https://lists.debian.org/debian-lts-announce/2024/01/msg00005.html
- http://packetstormsecurity.com/files/177029/Kernel-Live-Patch-Security-Notice-LSN-0100-1.html