#VU116330 Input validation error in Linux kernel - CVE-2023-53508
Published: October 1, 2025 / Updated: October 27, 2025
Vulnerability identifier: #VU116330
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-2023-53508
CWE-ID: CWE-20
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 input validation within the ublk_ctrl_start_dev() function in drivers/block/ublk_drv.c. A local user can perform a denial of service (DoS) attack.
Remediation
Install update from vendor's repository.