Secunia Security Advisory – Ubuntu has issued an update for MySQL. This fixes a security issue, which can be exploited by malicious users to bypass certain security restrictions.
You can download this advisory from the following link: https://packetstormsecurity.com/files/download/45787/sa19814.txt
Source: https://packetstormsecurity.com/files/45787/Secunia-Security-Advisory-19814.html

