USN-2184-1: Unity vulnerabilities

Publication date

29 April 2014

Overview

The Unity lock screen could be bypassed.

Releases


Packages

  • unity - Interface designed for efficiency of space and interaction.

Details

Frédéric Bardy discovered that Unity incorrectly filtered keyboard
shortcuts when the screen was locked. A local attacker could possibly use
this issue to run commands, and unlock the current session.

Giovanni Mellini discovered that Unity could display the Dash in certain
conditions when the screen was locked. A local attacker could possibly use
this issue to run commands, and unlock the current session.

Frédéric Bardy discovered that Unity incorrectly filtered keyboard
shortcuts when the screen was locked. A local attacker could possibly use
this issue to run commands, and unlock the current session.

Giovanni Mellini discovered that Unity could display the Dash in certain
conditions when the screen was locked. A local attacker could possibly use
this issue to run commands, and unlock the current session.

Update instructions

After a standard system update you need to restart your session to make all the necessary changes.

Learn more about how to get the fixes.

The problem can be corrected by updating your system to the following package versions:

Ubuntu Release Package Version
14.04 trusty unity –  7.2.0+14.04.20140423-0ubuntu1.1

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