#VU92408 Time-of-check time-of-use (toctou) race condition in Linux kernel - CVE-2023-1295 

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Main Vulnerability Database Vulnerabilities #VU92408

#VU92408 Time-of-check time-of-use (toctou) race condition in Linux kernel - CVE-2023-1295

Published: June 28, 2023 / Updated: December 4, 2023


Vulnerability identifier: #VU92408
Vulnerability risk: Low
CVSSv4.0: CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2023-1295
CWE-ID: CWE-367
Exploitation vector: Local access
Exploit availability: No public exploit available
Vulnerable software:
Linux kernel
Software vendor:
Linux Foundation

Description

The vulnerability allows a local user to execute arbitrary code.

The vulnerability exists due to time-of-check time-of-use (toctou) race condition error within the io_close_prep(), io_req_defer_prep(), io_issue_sqe() and io_grab_files() functions in fs/io_uring.c. A local user can execute arbitrary code.


Remediation

Install update from vendor's repository.

External links