14 DAY TRIAL // The Ubuntu 14.04 LTS, Ubuntu 12.04 LTS, and Ubuntu 10.04 LTS have been updated in order to fix a few Django vulnerabilities that were identified.
The Django exploits have affected all the supported Ubuntu OSes and they are responsible for a few security issues. The update should be available for all users of these systems.
"Collin Anderson discovered that Django incorrectly checked if a field represented a relationship between models in the administrative interface. A remote authenticated user could use this issue to possibly obtain sensitive information."
Also, "David Wilson discovered that Django incorrectly handled file name generation. A remote attacker could use this issue to cause Django to consume resources, resulting in a denial of service."
These are just a couple of the issues that have been identified and fixed in Ubuntu OSes. For a more detailed description of the problems, you can see Canonical's security notification. Users have been advised to upgrade their systems as soon as possible.
In general, a standard system update will make all the necessary changes and you don't have to restart the PC in order to complete the update.
You can also use the terminal to update the system. Just enter these commands in a terminal near you:
sudo apt-get dist-upgrade