Incorrect default permissions in postfix (Debian package) - CVE-2009-2939
Published: June 8, 2025
Vulnerability identifier: #VU110622
CSH Severity: Low
CVSS v4.0: 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-2009-2939
CWE-ID: CWE-276
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vendor: Debian
Affected software:
postfix (Debian package)
postfix (Debian package)
Detailed vulnerability description
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to incorrect default permissions for /var/spool/postfix/pid set by the application. A local user with access to the system can view contents of files and directories or modify them.
How to mitigate CVE-2009-2939
Install updates from vendor's website.