==========================================================================
Ubuntu Security Notice USN-3966-1
May 06, 2019

gnome-shell vulnerability
==========================================================================

A security issue affects these releases of Ubuntu and its derivatives:

– Ubuntu 18.10
– Ubuntu 18.04 LTS

Summary:

GNOME Shell could be made to execute keyboard shortcuts and other
actions while the workstation was locked.

Software Description:
– gnome-shell: graphical shell for the GNOME desktop

Details:

It was discovered that the GNOME Shell incorrectly handled certain
keyboard inputs. An attacker could possibly use this issue to invoke
keyboard shortcuts, and potentially other actions while the workstation
was locked.

Update instructions:

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

Ubuntu 18.10:
  gnome-shell                     3.30.2-0ubuntu1.18.10.2

Ubuntu 18.04 LTS:
  gnome-shell                     3.28.3+git20190124-0ubuntu18.04.2

After a standard system update you need to reboot your computer to make
all the necessary changes.

References:
  https://usn.ubuntu.com/usn/usn-3966-1
  CVE-2019-3820

Package Information:
  https://launchpad.net/ubuntu/+source/gnome-shell/3.30.2-0ubuntu1.18.10.2
  https://launchpad.net/ubuntu/+source/gnome-shell/3.28.3+git20190124-0ubuntu18.04.2—–BEGIN PGP SIGNATURE—–
Version: GnuPG v2
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=oOkO
—–END PGP SIGNATURE—–
—