CVEvulnerability
CVE-2023-2236
7.8 HIGH
Official page ↗
- Status
- Modified
- Published
- 2023-05-01
- 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])
- 7.8 HIGH — CVSS:3.1/AV:L/AC:L/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 subsystem can be exploited to achieve local privilege escalation.
Both io_install_fixed_file and its callers call fput in a file in case of an error, causing a reference underflow which leads to a use-after-free vulnerability.
We recommend upgrading past commit 9d94c04c0db024922e886c9fd429659f22f48ea4.
Affected configurations
• linux linux kernel (>= 5.19 < 6.0.11)
• netapp hci baseboard management controller h300s
• netapp hci baseboard management controller h410c
• netapp hci baseboard management controller h410s
• netapp hci baseboard management controller h500s
• netapp hci baseboard management controller h700s
Related
Weakness · CWE (1)
- CWE-416 Use After Free weakness
References
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=9d94c04c0db024922e886c9fd429659f22f48ea4 Exploit, Mailing List, Patch
- https://kernel.dance/9d94c04c0db024922e886c9fd429659f22f48ea4 Exploit, Patch
- https://security.netapp.com/advisory/ntap-20230601-0010/ Vendor Advisory
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=9d94c04c0db024922e886c9fd429659f22f48ea4 Exploit, Mailing List, Patch
- https://kernel.dance/9d94c04c0db024922e886c9fd429659f22f48ea4 Exploit, Patch
- https://security.netapp.com/advisory/ntap-20230601-0010/ Vendor Advisory