Unknown vulnerability in Apple Mac OS X 10.3.6 server, when using Kerberos authentication and Cyrus IMAP allows local users to access mailboxes of other users.
https://exchange.xforce.ibmcloud.com/vulnerabilities/18351
http://www.securityfocus.com/bid/11802
http://www.ciac.org/ciac/bulletins/p-049.shtml
http://secunia.com/advisories/13362/
http://lists.apple.com/archives/security-announce/2004/Dec/msg00000.html