#VU117594 Improper locking in Linux kernel - CVE-2023-53731
Published: October 23, 2025 / Updated: October 26, 2025
Vulnerability identifier: #VU117594
Vulnerability risk: Low
CVSSv4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2023-53731
CWE-ID: CWE-667
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 perform a denial of service (DoS) attack.
The vulnerability exists due to improper locking within the __netlink_diag_dump() function in net/netlink/diag.c. A local user can perform a denial of service (DoS) attack.
Remediation
Install update from vendor's repository.
External links
- https://git.kernel.org/stable/c/1556ba034b95cfd4f75ea93c1a2679ae0444bba1
- https://git.kernel.org/stable/c/4b9adb8d4a62ff7608d4a7d4eb42036a88f30980
- https://git.kernel.org/stable/c/61ffe8b1ee084e5c82a4e4bbf9e7b68e0c06e464
- https://git.kernel.org/stable/c/8d61f926d42045961e6b65191c09e3678d86a9cf
- https://git.kernel.org/stable/c/8f6652ed2ad98fe6d13b903483d9257762ab2ec6
- https://git.kernel.org/stable/c/a641240b7e071c5538dc0e7894ece833fce459dd
- https://git.kernel.org/stable/c/c09e8e3f7fd432984bf5422302b093d2371dfc48
- https://git.kernel.org/stable/c/cde7b90e0539a3b11da377e463dfd2288a162dbf
- https://git.kernel.org/stable/c/eb8e27c8fa9397b4a7b181c48fa58157dbe9902e
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.3.13