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Message #96954
[Bug 1460626] Re: Unity Lockscreen still shows unlocked desktop while shutting down
Unfortunately we've some backlog to land, but we're looking into getting
this to trunk ASAP and backport to trusty
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https://bugs.launchpad.net/bugs/1460626
Title:
Unity Lockscreen still shows unlocked desktop while shutting down
Status in Unity:
In Progress
Status in indicator-session package in Ubuntu:
In Progress
Status in unity package in Ubuntu:
In Progress
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