USN-3892-1: GDM vulnerability

20 February 2019

GDM could give unauthorized access to a different user.

Releases

Packages

  • gdm3 - GNOME Display Manager

Details

Burghard Britzke discovered that GDM incorrectly handled certain configurations.
An attacker could possibly use this issue to get unauthorized access to
a different user.

Update instructions

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

Ubuntu 18.10
Ubuntu 18.04

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

References