VULNERABILITY INTELLIGENCE
CVE-2009-2939
CVSS score6.9 MEDIUM
EPSS probability0.50%
CISA KEVNot currently listed
Published2009-09-21
Last modified2026-06-16
CVSS vectorAV:L/AC:M/Au:N/C:C/I:C/A:C
Description
The postfix.postinst script in the Debian GNU/Linux and Ubuntu postfix 2.5.5 package grants the postfix user write access to /var/spool/postfix/pid, which might allow local users to conduct symlink attacks that overwrite arbitrary files.
Weakness classification
- CWE-59: Improper Link Resolution Before File Access ('Link Following')