==========================================================================
Ubuntu Security Notice USN-3892-1
February 20, 2019
gdm3 vulnerability
==========================================================================
A security issue affects these releases of Ubuntu and its derivatives:
– Ubuntu 18.10
– Ubuntu 18.04 LTS
Summary:
GDM could give unauthorized access to a different user.
Software Description:
– 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 LTS:
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:
https://usn.ubuntu.com/usn/usn-3892-1
CVE-2019-3825
Package Information:
https://launchpad.net/ubuntu/+source/gdm3/3.30.1-1ubuntu5.1
https://launchpad.net/ubuntu/+source/gdm3/3.28.3-0ubuntu18.04.4—–BEGIN PGP SIGNATURE—–
Version: GnuPG v2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=PADH
—–END PGP SIGNATURE—–
—