Buffer overflow in krb_rd_req function in Kerberos 4 and 5 allows remote attackers to gain root privileges.
http://www.securityfocus.com/bid/1220
http://www.redhat.com/support/errata/RHSA-2000-025.html
http://www.cert.org/advisories/CA-2000-06.html
http://archives.neohapsis.com/archives/freebsd/2000-05/0295.html
http://archives.neohapsis.com/archives/bugtraq/2000-05/0184.html