The Date and Time Indicator would allow unintended access.
It was discovered that the Date and Time Indicator incorrectly allowed Evolution to be opened at the greeter screen. An attacker could use this issue to possibly gain unexpected access to applications such as a web browser with privileges of the greeter user.
30 April 2014
A security issue affects these releases of Ubuntu and its derivatives:
The Date and Time Indicator would allow unintended access.
It was discovered that the Date and Time Indicator incorrectly allowed Evolution to be opened at the greeter screen. An attacker could use this issue to possibly gain unexpected access to applications such as a web browser with privileges of the greeter user.
The problem can be corrected by updating your system to the following package versions:
To update your system, please follow these instructions: https://wiki.ubuntu.com/Security/Upgrades.
After a standard system update you need to reboot your computer to make all the necessary changes.
Vulmon