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.netsys.com/suse-linux-security/2000-May/att-0137/01-b0f5-Qpopper.txt http://www.vuxml.org/freebsd/ebdf65c7-2ca6-11d8-9355-0020ed76ef5a.html

The following package is affected: qpopper CVE-2000-0442 Qpopper 2.53 and earlier allows local users to gain privileges via a formatting string in the From: header, which is processed by the euidl command.