#VU104966 Use-after-free in Linux kernel - CVE-2025-21710
Published: February 27, 2025 / Updated: May 11, 2025
Vulnerability identifier: #VU104966
Vulnerability risk: Low
CVSSv4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2025-21710
CWE-ID: CWE-416
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerable software:
Linux kernel
Linux kernel
Software vendor:
Linux Foundation
Linux Foundation
Description
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.
External links
- 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