Secunia Security Advisory – Fedora has issued an update for pdns-recursor. This fixes a vulnerability, 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/68719/sa31311.txt
Source: https://packetstormsecurity.com/files/68719/Secunia-Security-Advisory-31311.html