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.pdc.kth.se/heimdal/advisory/2005-04-20 http://www.pdc.kth.se/heimdal/advisory/2005-06-20 http://www.pdc.kth.se/heimdal/advisory/2006-02-06 http://www.vuxml.org/freebsd/b62c80c2-b81a-11da-bec5-00123ffe8333.html

The following package is affected: heimdal CVE-2005-0469 Buffer overflow in the slc_add_reply function in various BSD-based Telnet clients, when handling LINEMODE suboptions, allows remote attackers to execute arbitrary code via a reply with a large number of Set Local Character (SLC) commands. CVE-2005-2040 Multiple buffer overflows in the getterminaltype function in telnetd for Heimdal before 0.6.5 may allow remote attackers to execute arbitrary code, a different vulnerability than CVE-2005-0468 and CVE-2005-0469. CVE-2006-0582 Unspecified vulnerability in rshd in Heimdal 0.6.x before 0.6.6 and 0.7.x before 0.7.2, when storing forwarded credentials, allows attackers to overwrite arbitrary files and change file ownership via unknown vectors. CVE-2006-0677 telnetd in Heimdal 0.6.x before 0.6.6 and 0.7.x before 0.7.2 allows remote unauthenticated attackers to cause a denial of service (server crash) via unknown vectors that trigger a null dereference.