CVE-2023-4622
גבוהה 7.0
תיאור (מקור, אנגלית)
A use-after-free vulnerability in the Linux kernel's af_unix component can be exploited to achieve local privilege escalation. The 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. We recommend upgrading past commit 790c2f9d15b594350ae9bca7b236f2b1859de02c (or backported equivalents).
מדדים
- CVSS 3.1
-
7.0 (HIGH)
מקור הציון: NVD
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H - EPSS — סבירות ניצול
- 1% (אחוזון 000) נכון ל-14/10/2026
- CWE
- CWE-416
מוצרים מושפעים
linux: linux kernel; debian: debian linux
קישורים
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?h=lin… Issue TrackingMailing ListPatchVendor Advisory
- https://kernel.dance/790c2f9d15b594350ae9bca7b236f2b1859de02c PatchVendor Advisory
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?h=lin… Issue TrackingMailing ListPatchVendor Advisory
- https://kernel.dance/790c2f9d15b594350ae9bca7b236f2b1859de02c PatchVendor Advisory
- http://packetstormsecurity.com/files/175963/Kernel-Live-Patch-Security-Notice-… Third Party Advisory
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=…
- https://lists.debian.org/debian-lts-announce/2023/10/msg00027.html Mailing ListThird Party Advisory
- https://lists.debian.org/debian-lts-announce/2024/01/msg00004.html Mailing ListThird Party Advisory
- https://www.debian.org/security/2023/dsa-5492 Third Party Advisory
- http://packetstormsecurity.com/files/175963/Kernel-Live-Patch-Security-Notice-… Third Party Advisory