#VU116797 Improper locking in Linux kernel - CVE-2023-53667
Published: October 8, 2025 / Updated: October 26, 2025
Vulnerability identifier: #VU116797
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-2023-53667
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 cdc_ncm_check_tx_max() and cdc_ncm_fill_tx_frame() functions in drivers/net/usb/cdc_ncm.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/2334ff0b343ba6ba7a6c0586fcc83992bbbc1776
- https://git.kernel.org/stable/c/42b78c8cc774b47023d6d16d96d54cc7015e4a07
- https://git.kernel.org/stable/c/6147745d43ff4e0d2c542e5b93e398ef0ee4db00
- https://git.kernel.org/stable/c/72d0240b0ee4794efc683975c213e4b384fea733
- https://git.kernel.org/stable/c/7e01c7f7046efc2c7c192c3619db43292b98e997
- https://git.kernel.org/stable/c/9be921854e983a81a0aeeae5febcd87093086e46
- https://git.kernel.org/stable/c/bf415bfe7573596ac213b4fd1da9e62cfc9a9413
- https://git.kernel.org/stable/c/ff484163dfb61b58f23e4dbd007de1094427669c
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.4.245