Ubuntu Update for firefox USN-1367-2

Ubuntu Update for Linux kernel vulnerabilities USN-1367-2
Please Install the Updated Packages.
USN-1367-1 fixed vulnerabilities in libpng. This provides the corresponding update for Firefox. Original advisory details: Jueri Aedla discovered that libpng did not properly verify the size used when allocating memory during chunk decompression. If a user or automated system using libpng were tricked into opening a specially crafted image, an attacker could exploit this to cause a denial of service or execute code with the privileges of the user invoking the program. (CVE-2011-3026)
firefox on Ubuntu 11.04 , Ubuntu 10.10 , Ubuntu 10.04 LTS