The Apache Traffic Server versions 2.1.1 and 2.0.0 suffer from a DNS cache poisoning vulnerability.
You can download this advisory from the following link: https://packetstormsecurity.com/files/download/93709/NDSA20100830.txt
Source: https://packetstormsecurity.com/files/93709/Apache-Traffic-Server-DNS-Cache-Poisoning.html