CVE-2023-4244
A use-after-free vulnerability in the Linux kernel's netfilter: nf_tables component can be exploited to achieve local privilege escalation. Due to a race condition between nf_tables netlink control plane transaction and nft_set element garbage collection, it is possible to underflow the reference counter causing a use-after-free vulnerability. We recommend upgrading past commit 3e91b0ebd994635df2346353322ac51ce84ce6d8.
- Score
- CVSS 3.1 7.8 High
- Status
- Analyzed - cve-coordination@google.com
- Published
- 2023-09-06
- Last modified
- 2026-07-28
- Weaknesses
- CWE-416
Affected products
References
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=3e91b0ebd994635df2346353322ac51ce84ce6d8
- https://kernel.dance/3e91b0ebd994635df2346353322ac51ce84ce6d8
- https://lists.debian.org/debian-lts-announce/2023/10/msg00027.html
- https://lists.debian.org/debian-lts-announce/2024/01/msg00004.html
