Bug 258015

Summary:	switching between user accounts unsecure
Product:	kscreensaver	Reporter:	Joerg <yester64>
Component:	locker	Assignee:	kscreensaver bugs tracking <kscreensaver-bugs-null>
Status:	RESOLVED DUPLICATE
Severity:	crash
Priority:	NOR
Version:	unspecified
Target Milestone:	---
Platform:	openSUSE
OS:	Linux
Latest Commit:		Version Fixed In:

Description Joerg 2010-11-26 20:56:29 UTC

Version:           4.5 (using KDE 4.5.2) 
OS:                Linux

The problem is simple.
If i switch between two user accounts, at switch the previous screen on that user account will be shown before entering a password.
In the best world it should be blank at all time till after entering the password so that no one sees what data was entered at that screen.
I noticed this through all KDE versions and i wonder if it is intended or a bug.
It is just a security concern and not a bug.
Would be nice to have a blank screen at switching between user accounts.
On a note, i use Nvidia drivers NVIDIA 260.19.12

Reproducible: Always

Steps to Reproduce:
It should be the same at any computer. So i am not sure how to reproduce this.

Comment 1 Christoph Feck 2010-11-26 21:13:42 UTC

This is probably bug 183496.

Comment 2 Oswald Buddenhagen 2010-11-27 12:05:31 UTC

maybe. are the old screen contents visible the entire time while the password is being entered or only a short flash while the dialog is coming up?

Comment 3 Martin Flöser 2015-01-23 12:56:43 UTC


*** This bug has been marked as a duplicate of bug 183496 ***