Dovecot is an open source IMAP and POP3 email server.
Dovecot does not properly close connections, allowing a resource exhaustion for incomplete SSL/TLS handshakes.
A remote attacker could possibly cause a Denial of Service condition.
There is no known workaround at this time.
All Dovecot users should upgrade to the latest version:
# emerge --sync # emerge --ask --oneshot --verbose ">=net-mail/dovecot-2.2.13"