USN-3892-1: GDM vulnerability

Releases

• Ubuntu 18.10
• Ubuntu 18.04 ESM

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

• gdm3 - 3.30.1-1ubuntu5.1

Ubuntu 18.04

• gdm3 - 3.28.3-0ubuntu18.04.4

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

References

• CVE-2019-3825