Apple Open Directory Pre-Authentication Denial of Service: A denial of service condition exists in slapd (OpenLDAP-2.2.19) during the anonymous bind operation. By sending a malformed ldap-bind message, the slapd server can be forced to abort
You can download this advisory from the following link: https://packetstormsecurity.com/files/download/47876/MU-200606-02.txt
Source: https://packetstormsecurity.com/files/47876/MU-Security-Advisory-2006-06.02.html