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://web.mit.edu/kerberos/www/advisories/MITKRB5-SA-2011-007.txt http://www.vuxml.org/freebsd/6c7d9a35-2608-11e1-89b4-001ec9578670.html

The following package is affected: krb5 CVE-2011-1530 The process_tgs_req function in do_tgs_req.c in the Key Distribution Center (KDC) in MIT Kerberos 5 (aka krb5) 1.9 through 1.9.2 allows remote authenticated users to cause a denial of service (NULL pointer dereference and daemon crash) via a crafted TGS request that triggers an error other than the KRB5_KDB_NOENTRY error.