Secunia Security Advisory – Ubuntu has issued an update for icu. 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/76138/sa34492.txt
Source: https://packetstormsecurity.com/files/76138/Secunia-Security-Advisory-34492.html