#VU120838 Buffer overflow in Linux kernel - CVE-2023-54312
Published: December 30, 2025 / Updated: December 30, 2025
Vulnerability identifier: #VU120838
Vulnerability risk: Low
CVSSv4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2023-54312
CWE-ID: CWE-119
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 escalate privileges on the system.
The vulnerability exists due to memory corruption within the bpf_basertt() function in samples/bpf/tcp_basertt_kern.c. A local user can escalate privileges on the system.
Remediation
Install update from vendor's repository.
External links
- https://git.kernel.org/stable/c/56c25f2763a16db4fa1b486e6a21dc246cd992bd
- https://git.kernel.org/stable/c/7c08d1b0d1f75117cf82aeaef49ba9f861b3fb59
- https://git.kernel.org/stable/c/bd3e880dce27d225598730d2bbb3dc05b443af22
- https://git.kernel.org/stable/c/cf7514fedc25675e68b74941df28a883951e70fd
- https://git.kernel.org/stable/c/dfc004688518d24159606289c74d0c4e123e6436
- https://git.kernel.org/stable/c/e92f61e0701ea780e57e1be8dbd1fbec5f42c09e
- https://git.kernel.org/stable/c/f394d204d64095d72ad9f03ff98f3f3743bf743a
- https://git.kernel.org/stable/c/f4dea9689c5fea3d07170c2cb0703e216f1a0922
- https://mirrors.edge.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.19.291
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.188
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.121
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.4.251
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.1.39
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.3.13
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.4.4
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.5