Ubuntu Security Notice USN-93-1 – A race condition was discovered in the handling of Set-Cookie headers. If the obsolete Netscape recommendation was used for handling cookies in the cache, it was possible for an attacker to steal the cookies of other users.
You can download this advisory from the following link: https://packetstormsecurity.com/files/download/36534/USN-93-1.txt
Source: https://packetstormsecurity.com/files/36534/Ubuntu-Security-Notice-93-1.html