{"id":"CVE-2023-4622","details":"A use-after-free vulnerability in the Linux kernel's af_unix component can be exploited to achieve local privilege escalation.\n\nThe unix_stream_sendpage() function tries to add data to the last skb in the peer's recv queue without locking the queue. Thus there is a race where unix_stream_sendpage() could access an skb locklessly that is being released by garbage collection, resulting in use-after-free.\n\nWe recommend upgrading past commit 790c2f9d15b594350ae9bca7b236f2b1859de02c.","aliases":["A-299123598","ASB-A-299123598"],"modified":"2026-03-15T22:47:32.961521Z","published":"2023-09-06T14:15:12.193Z","related":["ALSA-2024:0113","SUSE-SU-2023:4030-1","SUSE-SU-2023:4031-1","SUSE-SU-2023:4032-1","SUSE-SU-2023:4033-1","SUSE-SU-2023:4035-1","SUSE-SU-2023:4057-1","SUSE-SU-2023:4058-1","SUSE-SU-2023:4071-1","SUSE-SU-2023:4072-1","SUSE-SU-2023:4072-2","SUSE-SU-2023:4093-1","SUSE-SU-2023:4095-1","SUSE-SU-2023:4142-1","SUSE-SU-2023:4347-1","SUSE-SU-2023:4766-1","SUSE-SU-2023:4775-1","SUSE-SU-2023:4795-1","SUSE-SU-2023:4796-1","SUSE-SU-2023:4799-1","SUSE-SU-2023:4801-1","SUSE-SU-2023:4802-1","SUSE-SU-2023:4805-1","SUSE-SU-2023:4817-1","SUSE-SU-2023:4820-1","SUSE-SU-2023:4822-1","SUSE-SU-2023:4831-1","SUSE-SU-2023:4833-1","SUSE-SU-2023:4836-1","SUSE-SU-2023:4841-1","SUSE-SU-2023:4847-1","SUSE-SU-2023:4848-1","SUSE-SU-2023:4849-1","SUSE-SU-2023:4862-1","SUSE-SU-2023:4863-1","SUSE-SU-2023:4866-1","SUSE-SU-2023:4871-1","SUSE-SU-2023:4872-1"],"references":[{"type":"WEB","url":"http://packetstormsecurity.com/files/175963/Kernel-Live-Patch-Security-Notice-LSN-0099-1.html"},{"type":"WEB","url":"https://lists.debian.org/debian-lts-announce/2024/01/msg00004.html"},{"type":"ADVISORY","url":"https://www.debian.org/security/2023/dsa-5492"},{"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/stable/linux.git/commit/?h=linux-6.1.y&id=790c2f9d15b594350ae9bca7b236f2b1859de02c"},{"type":"FIX","url":"https://kernel.dance/790c2f9d15b594350ae9bca7b236f2b1859de02c"}],"affected":[{"database_specific":{"unresolved_ranges":[{"events":[{"introduced":"4.2"},{"fixed":"6.1.47"}]},{"events":[{"introduced":"0"},{"last_affected":"10.0"}]},{"events":[{"introduced":"0"},{"last_affected":"12.0"}]}],"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2023-4622.json"}}],"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"}]}