#VU115346 Memory leak in Linux kernel - CVE-2023-53173
Published: September 16, 2025 / Updated: September 22, 2025
Vulnerability identifier: #VU115346
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-2023-53173
CWE-ID: CWE-401
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 memory leak within the pch_uart_exit_port() function in drivers/tty/serial/pch_uart.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/04a189c720aa2b6091442113ce9b9bc93552dff8
- https://git.kernel.org/stable/c/139769c4bd8273b5e3f85ea474aa37018fe7e436
- https://git.kernel.org/stable/c/4459d1e7bd0421b3b6fcd745773d8823f71615ef
- https://git.kernel.org/stable/c/cf042964c2fa72950bbbf25b2cdd732b873e89db
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.100