14 DAY TRIAL // Ubuntu 14.10, Ubuntu 14.04 LTS, Ubuntu 12.04 LTS, and Ubuntu 10.04 LTS operating systems have been updated in order to fix a number of PostgreSQL vulnerabilities discovered to affect them.
Quite a few PostgreSQL vulnerabilities have been identified and now patches have been issued for these issues. As usual, the Ubuntu maintainers have been quick to update the repositories and the users have been advised to upgrade their systems as well.
"Andres Freund, Peter Geoghegan and Noah Misch discovered that PostgreSQL incorrectly handled buffers in to_char functions. An authenticated attacker could possibly use this issue to cause PostgreSQL to crash, resulting in a denial of service, or possibly execute arbitrary code," reads the security advisory.
This is just one of the exploits that have been found and fixed. For a more detailed description of the problems, you can see Canonical's security notification. Users should upgrade their OS as soon as possible.
In general, a standard system update will make all the necessary changes. A reboot of the system is not required. This PostgreSQL upgrade also integrates some patches directly from upstream.
You can also use the terminal to update the system. Just enter these commands in a terminal near you and wait for the process to complete:
sudo apt-get dist-upgrade