{"id":"CVE-2023-4015","details":"A use-after-free vulnerability in the Linux kernel's netfilter: nf_tables component can be exploited to achieve local privilege escalation.\n\nOn an error when building a nftables rule, deactivating immediate expressions in nft_immediate_deactivate() can lead unbinding the chain and objects be deactivated but later used.\n\nWe recommend upgrading past commit 0a771f7b266b02d262900c75f1e175c7fe76fec2.","modified":"2026-03-14T12:17:06.810153Z","published":"2023-09-06T14:15:11.093Z","references":[{"type":"ADVISORY","url":"https://www.debian.org/security/2023/dsa-5492"},{"type":"FIX","url":"https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=0a771f7b266b02d262900c75f1e175c7fe76fec2"},{"type":"FIX","url":"https://kernel.dance/0a771f7b266b02d262900c75f1e175c7fe76fec2"}],"affected":[{"database_specific":{"unresolved_ranges":[{"events":[{"introduced":"5.9"},{"fixed":"5.10.190"}]},{"events":[{"introduced":"5.11"},{"fixed":"5.15.124"}]},{"events":[{"introduced":"5.16"},{"fixed":"6.1.43"}]},{"events":[{"introduced":"6.2"},{"fixed":"6.4.8"}]},{"events":[{"introduced":"0"},{"last_affected":"12.0"}]}],"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2023-4015.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"}]}