bind8 negative cache poison attack

A programming error in BIND 8 named can result in a DNS
message being incorrectly cached as a negative response. As
a result, an attacker may arrange for malicious DNS messages
to be delivered to a target name server, and cause that name
server to cache a negative response for some target domain
name. The name server would thereafter respond negatively
to legitimate queries for that domain name, resulting in a
denial-of-service for applications that require DNS.