Use After Free in Linux Kernel
CVE-2023-2236
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 underflo…
Vulnerability class: Use-After-Free
EPSS: 0.004 (34.8th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
Affected products
- Linux Kernel — versions 5.19
- Linux Linux_kernel
- Netapp Hci_baseboard_management_controller — versions h300s, h410c, h410s
Weakness classification (CWE)
References
- cve-coordination@google.com (Exploit, Patch, Mailing List, patch)
- cve-coordination@google.com (Exploit, Patch)
- cve-coordination@google.com (Vendor Advisory)
Frequently asked questions
- What is CVE-2023-2236?
- CVE-2023-2236 is a high-severity vulnerability in Linux Kernel, classified under Use After Free. CVSS score: 7.8/10. Published 2023-05-01.
- How severe is CVE-2023-2236?
- High severity. CVSS v3 base score is 7.8 out of 10.