Secunia Security Advisory – Red Hat has issued an update for yum-rhn-plugin. This fixes a security issue, which can be exploited by malicious people to conduct spoofing attacks.
You can download this advisory from the following link: https://packetstormsecurity.com/files/download/69124/sa31472.txt
Source: https://packetstormsecurity.com/files/69124/Secunia-Security-Advisory-31472.html