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Message #81720
[Bug 1460626] Re: Unity Lockscreen still shows unlocked desktop while shutting down
Andrea, this bug is just a new filing for
https://bugs.launchpad.net/ubuntu/+source/unity/+bug/1370017 which is
still not fixed in Trusty. The verification instructions in that bug
were wrong, and thus it's marked as "Fix Released" when it's actually
not fixed at all.
If it has actually been fixed in vivid, maybe the backported patch
missed something?
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https://bugs.launchpad.net/bugs/1460626
Title:
Unity Lockscreen still shows unlocked desktop while shutting down
Status in unity package in Ubuntu:
New
Bug description:
This was reported and supposedly fixed in
https://bugs.launchpad.net/ubuntu/+source/unity/+bug/1370017, but the
bug is still present in the current Unity version in Trusty. I've
reported it in that bug already, but got ignored, so I'm opening a new
bug about it.
[Impact and Test Case]
Steps to reproduce:
1 - Log into Unity
2 - Open a terminal.
3 - Lock the screen
4 - From the lockscreen, tell the computer to shut down / restart
Expected behavior:
* Session programs are closed while the screen is still locked
* During shutdown, no user interaction is possible
Observed behavior:
* The lockscreen is gone immediately, with the rest of compiz (e.g. window decorations are not present)
* But it's possible to interact with programs that are still running in the session for about 3 seconds
Observed on an updated Trusty machine, running unity version
7.2.5+14.04.20150521.1-0ubuntu1
This bug is a security vulnerability because during those 3 seconds it
could be possible to access and interact with sensitive information.
Yes, it's short, but you could take a picture or even rm -rf / if
there happened to be a root console available.
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References