CVE-2008-4977

Severity: medium (CVSS 6.9 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.4% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2008-11-06 · updated 2026-06-16
Weakness: CWE-59

Description

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.

Affected products

Postfix: 2.5.2

References

http://bugs.debian.org/496401
http://dev.gentoo.org/~rbu/security/debiantemp/postfix
http://www.openwall.com/lists/oss-security/2008/10/30/2
https://bugs.gentoo.org/show_bug.cgi?id=235770
https://bugs.gentoo.org/show_bug.cgi?id=235811
http://bugs.debian.org/496401
http://dev.gentoo.org/~rbu/security/debiantemp/postfix
http://www.openwall.com/lists/oss-security/2008/10/30/2
https://bugs.gentoo.org/show_bug.cgi?id=235770
https://bugs.gentoo.org/show_bug.cgi?id=235811

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