CVEvulnerability
CVE-2023-1872
7.0 HIGH
Official page ↗
- Status
- Modified
- Published
- 2023-04-12
- Last modified
- 2026-06-17
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 7.8 HIGH — CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- CVSS 3.1 ([email protected])
- 7.0 HIGH — CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
- Weaknesses
- CWE-416
Description
A use-after-free vulnerability in the Linux Kernel io_uring system can be exploited to achieve local privilege escalation.
The io_file_get_fixed function lacks the presence of ctx->uring_lock which can lead to a Use-After-Free vulnerability due a race condition with fixed files getting unregistered.
We recommend upgrading past commit da24142b1ef9fd5d36b76e36bab328a5b27523e8.
Affected configurations
• linux linux kernel (>= 5.7 < 5.17)
• debian debian linux 10.0
Related
Weakness · CWE (1)
- CWE-416 Use After Free weakness
References
- http://packetstormsecurity.com/files/173087/Kernel-Live-Patch-Security-Notice-LSN-0095-1.html Third Party Advisory, VDB Entry
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?h=linux-5.10.y&id=08681391b84da27133deefaaddefd0acfa90c2be Mailing List, Product
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?h=linux-5.10.y&id=da24142b1ef9fd5d36b76e36bab328a5b27523e8 Mailing List, Patch
- https://lists.debian.org/debian-lts-announce/2023/05/msg00005.html Third Party Advisory
- https://security.netapp.com/advisory/ntap-20230601-0002/ Third Party Advisory
- http://packetstormsecurity.com/files/173087/Kernel-Live-Patch-Security-Notice-LSN-0095-1.html Third Party Advisory, VDB Entry
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?h=linux-5.10.y&id=08681391b84da27133deefaaddefd0acfa90c2be Mailing List, Product
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?h=linux-5.10.y&id=da24142b1ef9fd5d36b76e36bab328a5b27523e8 Mailing List, Patch
- https://lists.debian.org/debian-lts-announce/2023/05/msg00005.html Third Party Advisory
- https://security.netapp.com/advisory/ntap-20230601-0002/ Third Party Advisory