CVE-2011-1929: Dovecot

Medium severity, CVSS 5.0. EPSS: 3.3% chance of exploitation in the next 30 days.

lib-mail/message-header-parser.c in Dovecot 1.2.x before 1.2.17 and 2.0.x before 2.0.13 does not properly handle '\0' characters in header names, which allows remote attackers to cause a denial of service (daemon crash or mailbox corruption) via a crafted e-mail message.

Affected products

• Dovecot Dovecot: version 1.2.0 only; version 1.2.1 only; version 1.2.2 only; version 1.2.3 only; version 1.2.4 only; version 1.2.5 only; …

Published 2011-05-24. Last modified 2026-06-16.