Servers and applications
CVE-2009-2939
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.
- Severity
- Medium 6.9
- Published
- 21 Sept 2009
- Last changed
- 16 Jun 2026
- Added to UpHeron
- 1 Nov 2026
- Exploit chance
- 0.5% in the next 30 daysHigher than 43% of CVEs. EPSS by FIRST, 12 Nov 2026
- Weakness
- Link following (CWE-59)
- Attack
- Needs local access · No login needed
- Attacker can
- Read data · Change data · Take it down
- CVSS vector
AV:L/AC:M/Au:N/C:C/I:C/A:C- Sources
- NVD
Affected software
| Software | Affected versions |
|---|---|
PostfixServers and applications · cpe:a:postfix:postfix |
|