Servers and applications
CVE-2008-4977
postfix_groups.pl in Postfix 2.5.2 allows local users to overwrite arbitrary files via a symlink attack on the (1) /tmp/postfix_groups.stdout, (2) /tmp/postfix_groups.stderr, and (3) /tmp/postfix_groups.message temporary files. NOTE: the vendor disputes this vulnerability, stating "This is not a real issue ... users would have to edit a script under /usr/lib to enable it.
- Severity
- Medium 6.9
- Published
- 6 Nov 2008
- Last changed
- 16 Jun 2026
- Added to UpHeron
- 1 Nov 2026
- Exploit chance
- 0.4% in the next 30 daysHigher than 31% 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 |
|