{"id":"CVE-2023-4244","details":"A use-after-free vulnerability in the Linux kernel's netfilter: nf_tables component can be exploited to achieve local privilege escalation.\n\nDue 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.\n\nWe recommend upgrading past commit 3e91b0ebd994635df2346353322ac51ce84ce6d8.","modified":"2026-03-15T14:11:54.717098Z","published":"2023-09-06T14:15:11.877Z","related":["SUSE-SU-2023:4730-1","SUSE-SU-2023:4731-1","SUSE-SU-2023:4732-1","SUSE-SU-2023:4734-1","SUSE-SU-2023:4782-1","SUSE-SU-2023:4810-1","SUSE-SU-2024:2010-1","SUSE-SU-2024:2183-1","SUSE-SU-2024:2185-1","SUSE-SU-2024:2493-1","SUSE-SU-2024:2561-1","SUSE-SU-2024:2901-1","SUSE-SU-2025:0771-1","SUSE-SU-2025:0855-1","SUSE-SU-2025:0867-1","USN-6537-1","USN-6572-1"],"references":[{"type":"WEB","url":"https://lists.debian.org/debian-lts-announce/2024/01/msg00004.html"},{"type":"ADVISORY","url":"https://lists.debian.org/debian-lts-announce/2023/10/msg00027.html"},{"type":"FIX","url":"https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=3e91b0ebd994635df2346353322ac51ce84ce6d8"},{"type":"FIX","url":"https://kernel.dance/3e91b0ebd994635df2346353322ac51ce84ce6d8"}],"affected":[{"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2023-4244.json","unresolved_ranges":[{"events":[{"introduced":"0"},{"fixed":"6.5"}]},{"events":[{"introduced":"0"},{"last_affected":"10.0"}]}]}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H"}]}