CVE-2008-3889: Postfix

Low severity, CVSS 2.1. EPSS: 0.7% chance of exploitation in the next 30 days.

Postfix 2.4 before 2.4.9, 2.5 before 2.5.5, and 2.6 before 2.6-20080902, when used with the Linux 2.6 kernel, leaks epoll file descriptors during execution of "non-Postfix" commands, which allows local users to cause a denial of service (application slowdown or exit) via a crafted command, as demonstrated by a command in a .forward file.

Affected products

• Postfix Postfix: version 2.4 only; version 2.4.0 only; version 2.4.1 only; version 2.4.2 only; version 2.4.3 only; version 2.4.4 only; …

Published 2008-09-12. Last modified 2026-06-16.