SB20251230283 - Buffer overflow in Linux kernel bpf
Published: December 30, 2025 Updated: December 30, 2025
Security Bulletin ID
SB20251230283
Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Code execution
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Buffer overflow (CVE-ID: CVE-2023-54312)
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 website.
References
- 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