Secunia Security Advisory – Ubuntu has issued an update for qt. This fixes a vulnerability, which can be exploited by malicious people to bypass certain security restrictions.
You can download this advisory from the following link: https://packetstormsecurity.com/files/download/63960/sa28999.txt
Source: https://packetstormsecurity.com/files/63960/Secunia-Security-Advisory-28999.html