#VU114494 Use-after-free in Linux kernel - CVE-2025-38666
Published: August 28, 2025
Vulnerability identifier: #VU114494
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-2025-38666
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 DEFINE_RWLOCK(), __aarp_expire(), aarp_purge() and aarp_proxy_probe_network() functions in net/appletalk/aarp.c. A local user can escalate privileges on the system.
Remediation
Install update from vendor's repository.
External links
- https://git.kernel.org/stable/c/2a6209e4649d45fd85d4193abc481911858ffc6f
- https://git.kernel.org/stable/c/5f02ea0f63dd38c41539ea290fcc1693c73aa8e5
- https://git.kernel.org/stable/c/6c4a92d07b0850342d3becf2e608f805e972467c
- https://git.kernel.org/stable/c/e4f1564c5b699eb89b3040688fd6b4e57922f1f6
- https://git.kernel.org/stable/c/f90b6bb203f3f38bf2b3d976113d51571df9a482