The remote host is missing an update to the system as announced in the referenced advisory.
The following packages are affected: enscript-a4 enscript-letter enscript-letterdj
CVE-2004-1184 The EPSF pipe support in enscript 1.6.3 allows remote attackers or local users to execute arbitrary commands via shell metacharacters.
CVE-2004-1185 Enscript 1.6.3 does not sanitize filenames, which allows remote attackers or local users to execute arbitrary commands via crafted filenames.
CVE-2004-1186 Multiple buffer overflows in enscript 1.6.3 allow remote attackers or local users to cause a denial of service (application crash).
Solution: Update your system with the appropriate patches or software upgrades.