Secunia Security Advisory – F5 has acknowledged a vulnerability in BIG-IP, which can be exploited by malicious people to poison the DNS cache.
You can download this advisory from the following link: https://packetstormsecurity.com/files/download/84501/sa37790.txt
Source: https://packetstormsecurity.com/files/84501/Secunia-Security-Advisory-37790.html