Ubuntu Security Notice USN-720-1 – A significant amount of vulnerabilities in PHP 5 have been addressed. These range from security bypass to denial of service issues.
You can download this advisory from the following link: https://packetstormsecurity.com/files/download/74907/USN-720-1.txt
Source: https://packetstormsecurity.com/files/74907/Ubuntu-Security-Notice-720-1.html