{"id":"CVE-2023-40283","title":"An issue was discovered in l2cap_sock_release in net/bluetooth/l2cap_sock.c in the Linux kernel before 6.4.10","summary":"An issue was discovered in l2cap_sock_release in net/bluetooth/l2cap_sock.c in the Linux kernel before 6.4.10. There is a use-after-free because the children of an sk are mishandled.","severity":"high","cvss":7.8,"cvssVector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","cvssSource":"adp","ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"total","timestamp":"2024-05-10T04:00:08.967057Z"},"published":"2023-08-14","updated":"2026-09-18","sourceUpdated":"2026-09-18T15:06:00.041Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2023-40283","references":[{"url":"https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=1728137b33c00d5a2b5110ed7aafb42e7c32e4a1"},{"url":"https://github.com/torvalds/linux/commit/1728137b33c00d5a2b5110ed7aafb42e7c32e4a1"},{"url":"https://cdn.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.4.10"},{"url":"https://www.debian.org/security/2023/dsa-5480","label":"DSA-5480"},{"url":"https://www.debian.org/security/2023/dsa-5492","label":"DSA-5492"},{"url":"http://packetstormsecurity.com/files/175072/Kernel-Live-Patch-Security-Notice-LSN-0098-1.html"},{"url":"https://lists.debian.org/debian-lts-announce/2023/10/msg00027.html","label":"[debian-lts-announce] 20231019 [SECURITY] [DLA 3623-1] linux-5.10 security update"},{"url":"https://security.netapp.com/advisory/ntap-20231020-0007/"},{"url":"http://packetstormsecurity.com/files/175963/Kernel-Live-Patch-Security-Notice-LSN-0099-1.html"},{"url":"https://lists.debian.org/debian-lts-announce/2024/01/msg00004.html","label":"[debian-lts-announce] 20240111 [SECURITY] [DLA 3710-1] linux security update"}],"tags":["cve.org"],"epss":0.0055,"epssPercentile":0.44871,"ingestedAt":"2026-09-18T15:44:31.588Z","slug":"CVE-2023-40283","body":"## Overview\n\nAn issue was discovered in l2cap_sock_release in net/bluetooth/l2cap_sock.c in the Linux kernel before 6.4.10. There is a use-after-free because the children of an sk are mishandled.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"twilight","depthScore":43,"depthScoreParts":{"impact":42.9,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[]}