Description (CNA)
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).
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Kernel | affected 4.2 before 4.14.324; affected 4.15 before 4.19.293; affected 4.20 before 5.4.255; affected 5.5 before 5.10.192; affected 5.11 before 5.15.128; affected 5.16 before 6.1.47; affected 6.2 before 6.4.12; unaffected 6.5 |
CWE
CWE-416
References
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=4821df2ffe38d629170edc266e65fa05970e0745
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?h=linux-6.1.y&id=790c2f9d15b594350ae9bca7b236f2b1859de02c
- https://kernel.dance/790c2f9d15b594350ae9bca7b236f2b1859de02c
- https://www.debian.org/security/2023/dsa-5492
- https://lists.debian.org/debian-lts-announce/2023/10/msg00027.html
- http://packetstormsecurity.com/files/175963/Kernel-Live-Patch-Security-Notice-LSN-0099-1.html
- https://lists.debian.org/debian-lts-announce/2024/01/msg00004.html
ADP enrichment
No English description supplied.
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?h=linux-6.1.y&id=790c2f9d15b594350ae9bca7b236f2b1859de02c
- https://kernel.dance/790c2f9d15b594350ae9bca7b236f2b1859de02c
- https://www.debian.org/security/2023/dsa-5492
- https://lists.debian.org/debian-lts-announce/2023/10/msg00027.html
- http://packetstormsecurity.com/files/175963/Kernel-Live-Patch-Security-Notice-LSN-0099-1.html
- https://lists.debian.org/debian-lts-announce/2024/01/msg00004.html