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USN-2303-1: Unity vulnerability

31 July 2014

The Unity lock screen could possibly be bypassed in certain circumstances.



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


It was discovered that in certain circumstances Unity failed to
successfully grab the keyboard when switching to the lock screen. A local
attacker could possibly use this issue to run commands, and unlock the
current session.

Update instructions

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

Ubuntu 14.04

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