Launchpad.net

CVE 2016-1000002

gdm3 3.14.2 and possibly later has an information leak before screen lock

CVE-2016-1000002 (Candidate) is related to these bugs:

Bug #1532508: Screen contents revealed briefly on resume, before even unlocking

		In	Importance	Status
1532508	Screen contents revealed briefly on resume, before even unlocking	unity (Ubuntu)	High	Fix Released
1532508	Screen contents revealed briefly on resume, before even unlocking	GNOME Shell	Unknown	New
1532508	Screen contents revealed briefly on resume, before even unlocking	gnome-shell (Debian)	Unknown	Confirmed
1532508	Screen contents revealed briefly on resume, before even unlocking	unity (Ubuntu Xenial)	Undecided	Fix Released
1532508	Screen contents revealed briefly on resume, before even unlocking	gnome-shell (Ubuntu)	High	Confirmed
1532508	Screen contents revealed briefly on resume, before even unlocking	Mutter	Unknown	New

See the

CVE page on Mitre.org for more details.