Secunia Security Advisory – Fedora has issued an update for dovecot. This fixes a security issue, which can be exploited by malicious users to bypass certain security restrictions.
You can download this advisory from the following link: https://packetstormsecurity.com/files/download/71366/sa32471.txt
Source: https://packetstormsecurity.com/files/71366/Secunia-Security-Advisory-32471.html