#VU111389 Improper access control in linux-pam - CVE-2025-6020
Published: June 19, 2025 / Updated: July 3, 2025
Vulnerability identifier: #VU111389
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-2025-6020
CWE-ID: CWE-284
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerable software:
linux-pam
linux-pam
Software vendor:
git.kernel.org
git.kernel.org
Description
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to improper access restrictions within the pam_namespace module when handling user-controlled paths. A local user can use specially crafted symlinks and race conditions to execute arbitrary code as root.
Remediation
Install updates from vendor's website.