Description
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.
References (4)
Core 4
Core References
Patch, Vendor Advisory
https://kernel.dance/3e91b0ebd994635df2346353322ac51ce84ce6d8
Mailing List, Third Party Advisory
https://lists.debian.org/debian-lts-announce/2023/10/msg00027.html
Issue Tracking, Mailing List, Patch, Vendor Advisory patch
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=3e91b0ebd994635df2346353322ac51ce84ce6d8
Scores
CVSS v3
7.8
EPSS
0.0002
EPSS Percentile
4.8%
Attack Vector
LOCAL
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Details
CWE
CWE-416
Status
published
Products (2)
debian/debian_linux
10.0
linux/linux_kernel
< 6.5
Published
Sep 06, 2023
Tracked Since
Feb 18, 2026