1. Ubuntu Security Notices
  2. USN-2303-1

USN-2303-1: Unity vulnerability

Publication date

31 July 2014

Overview

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

Releases

Packages

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

Details

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.

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

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 –  7.2.2+14.04.20140714-0ubuntu1.1

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References

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