SB20251226322 - Buffer overflow in Linux kernel core
Published: December 26, 2025 Updated: December 31, 2025
Security Bulletin ID
SB20251226322
CSH Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Denial of service
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Buffer overflow (CVE-ID: CVE-2023-54155)
CWE-ID: CWE-119 - Memory corruption
CVSSv4: 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
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to memory corruption within the BPF_CALL_2() function in net/core/filter.c. A local user can perform a denial of service (DoS) attack.
Remediation
Install update from vendor's website.
References
- https://git.kernel.org/stable/c/20acffcdc2b74fb7dcc4e299f7aca173df89d911
- https://git.kernel.org/stable/c/a09c258cfa77d3ba0a7acc555c73eb6b005c4bd8
- https://git.kernel.org/stable/c/d14eea09edf427fa36bd446f4a3271f99164202f
- https://git.kernel.org/stable/c/d9252d67ed2f921c230bba449ee051b5c32e4841
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.4.11