SB2025022764 - Use-after-free in Linux kernel ipv4
Published: February 27, 2025 Updated: May 11, 2025
Security Bulletin ID
SB2025022764
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) Use-after-free (CVE-ID: CVE-2025-21710)
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a use-after-free error within the tcp_select_window() function in net/ipv4/tcp_output.c. A local user can escalate privileges on the system.
Remediation
Install update from vendor's website.
References
- https://git.kernel.org/stable/c/1dd823a46e25ffde1492c391934f69a9e5eb574f
- https://git.kernel.org/stable/c/8c670bdfa58e48abad1d5b6ca1ee843ca91f7303
- https://git.kernel.org/stable/c/b01e7ceb35dcb7ffad413da657b78c3340a09039
- https://git.kernel.org/stable/c/b4055e2fe96f4ef101d8af0feb056d78d77514ff
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.13.2