#VU120438 Out-of-bounds read in Linux kernel - CVE-2023-54039
Published: December 26, 2025 / Updated: December 31, 2025
Vulnerability identifier: #VU120438
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-2023-54039
CWE-ID: CWE-125
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 an out-of-bounds read error within the j1939_tp_tx_dat_new() function in net/can/j1939/transport.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/36befc9aed6202b4a9b906529aea13eacd7e34ff
- https://git.kernel.org/stable/c/4c3fb22a6ec68258ee129a2e6b720f43dffc562f
- https://git.kernel.org/stable/c/4fe1d9b6231a68ffc91318f57fd8e4982f028cf7
- https://git.kernel.org/stable/c/70caa596d158a5d84b117f722d58f3ea503a5ba9
- https://git.kernel.org/stable/c/b45193cb4df556fe6251b285a5ce44046dd36b4a
- https://git.kernel.org/stable/c/d2136f05690c272dfc9f9d6efcc51d5f53494b33
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.4.241