The remote host is missing an update to the system as announced in the referenced advisory.

Update your system with the appropriate patches or software upgrades.

The following package is affected: imap-uw CVE-2005-0198 A logic error in the CRAM-MD5 code for the University of Washington IMAP (UW-IMAP) server, when Challenge-Response Authentication Mechanism with MD5 (CRAM-MD5) is enabled, does not properly enforce all the required conditions for successful authentication, which allows remote attackers to authenticate as arbitrary users.