Ubuntu Security Notice USN-181-1 – Tom Ferris discovered a buffer overflow in the Mozilla products (Mozilla browser, Firefox, Thunderbird). By tricking an user to click on a Hyperlink with a specially crafted destination URL, a remote attacker could crash the application. It might even be possible to exploit this vulnerability to execute arbitrary code, but this has not yet been confirmed.
You can download this advisory from the following link: https://packetstormsecurity.com/files/download/39994/USN-181-1.txt
Source: https://packetstormsecurity.com/files/39994/Ubuntu-Security-Notice-181-1.html