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. http://secunia.com/Advisories/32143/ http://sourceforge.net/project/shownotes.php?release_id=644750&group_id=311 http://www.vuxml.org/freebsd/d1ce8a4f-c235-11dd-8cbc-00163e000016.html

The following package is affected: squirrelmail CVE-2008-2379 Cross-site scripting (XSS) vulnerability in SquirrelMail before 1.4.17 allows remote attackers to inject arbitrary web script or HTML via a crafted hyperlink in an HTML part of an e-mail message.