Secunia Security Advisory – Red Hat has issued an update for xmlsec1. 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/81082/sa36615.txt
Source: https://packetstormsecurity.com/files/81082/Secunia-Security-Advisory-36615.html