SB2025052139 - Improper locking in Linux kernel ipv4
Published: May 21, 2025 Updated: May 21, 2025
Security Bulletin ID
SB2025052139
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) Improper locking (CVE-ID: CVE-2025-37894)
CWE-ID: CWE-667 - Improper Locking
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 improper locking within the tcp6_check_fraglist_gro() function in net/ipv6/tcpv6_offload.c, within the tcp4_check_fraglist_gro() function in net/ipv4/tcp_offload.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/786650e644c5b1c063921799ca203c0b8670d79a
- https://git.kernel.org/stable/c/c0dba059b118b5206e755042b15b49368a388898
- https://git.kernel.org/stable/c/f920436a44295ca791ebb6dae3f4190142eec703
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.12.28
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.14.6