SB20250227180 - Race condition in Linux kernel ipv4
Published: February 27, 2025 Updated: May 11, 2025
Security Bulletin ID
SB20250227180
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 security vulnerability.
1) Race condition (CVE-ID: CVE-2025-21719)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to a race condition within the list_for_each_entry() function in net/ipv4/ipmr_base.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/15a901361ec3fb1c393f91880e1cbf24ec0a88bd
- https://git.kernel.org/stable/c/26bb7d991f04eeef47dfad23e533834995c26f7a
- https://git.kernel.org/stable/c/57177c5f47a8da852f8d76cf6945cf803f8bb9e5
- https://git.kernel.org/stable/c/a099834a51ccf9bbba3de86a251b3433539abfde
- https://git.kernel.org/stable/c/b379b3162ff55a70464c6a934ae9bf0497478a62
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.6.76