Ubuntu Security Notice 842-1 – It was discovered that Wget did not correctly handle SSL certificates with zero bytes in the Common Name. A remote attacker could exploit this to perform a man in the middle attack to view sensitive information or alter encrypted communications.
You can download this advisory from the following link: https://packetstormsecurity.com/files/download/81837/USN-842-1.txt
Source: https://packetstormsecurity.com/files/81837/Ubuntu-Security-Notice-842-1.html