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://www.guninski.com/exim1.html http://www.vuxml.org/freebsd/5f29c2e4-9f6a-11d8-abbc-00e08110b673.html

The following packages are affected: exim exim-ldap2 exim-mysql exim-postgresql CVE-2004-0400 Stack-based buffer overflow in Exim 4 before 4.33, when the headers_check_syntax option is enabled, allows remote attackers to cause a denial of service and possibly execute arbitrary code during the header check.