14 DAY TRIAL // Details about a number of Thunderbird vulnerabilities in Ubuntu 15.04, Ubuntu 14.04 LTS, and Ubuntu 12.04 LTS operating systems have been revealed by Canonical in a short security notice.
Thunderbird is the official email client for Ubuntu, and it usually gets updated quite often. This latest version of Thunderbird is not a big update, but it does cover quite a few security fixes that have been implemented.
"Andrew Osmond, Olli Pettay, Andrew Sutherland, Christian Holler, David Major, Andrew McCreight, and Cameron McCormack discovered multiple memory safety issues in Thunderbird. If a user were tricked into opening a specially crafted message, an attacker could potentially exploit these to cause a denial of service via application crash, or execute arbitrary code with the privileges of the user invoking Thunderbird," reads the announcement.
For a more detailed description of the problems, you can see Canonical's security notification. The flaws can be fixed if you upgrade your system(s) to the latest Thunderbird package specific to each distribution. To apply the patch, run the Update Manager application. You can also upgrade your system from the terminal. Just enter these two commands (you will need to be root for this to work):
sudo apt-get dist-upgrade