<http://www.securityfocus.com/archive/1/301864>
<http://www.securityfocus.com/bid/6298>
<http://www.kb.cert.org/vuls/id/740169>
<http://asg.web.cmu.edu/archive/message.php?mailbox=archive.info-cyrus&msg=19349>
<http://asg.web.cmu.edu/cyrus/download/>

"The 1.x series of Cyrus IMAPd [...] should be considered unsafe to use."