#VU104163 Use-after-free in Linux kernel - CVE-2023-52926
Published: February 24, 2025 / Updated: May 11, 2025
Vulnerability identifier: #VU104163
Vulnerability risk: Low
CVSSv4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:U/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2023-52926
CWE-ID: CWE-416
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerable software:
Linux kernel
Linux kernel
Software vendor:
Linux Foundation
Linux Foundation
Description
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a use-after-free error within the io_rw_init_file() function in io_uring/rw.c. A local user can escalate privileges on the system.
Remediation
Install update from vendor's website.
External links
- https://git.kernel.org/stable/c/6c27fc6a783c8a77c756dd5461b15e465020d075
- https://git.kernel.org/stable/c/72060434a14caea20925e492310d6e680e3f9007
- https://git.kernel.org/stable/c/a08d195b586a217d76b42062f88f375a3eedda4d
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.1.122
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.6.68
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.7