** Package changed: ubuntu => gnome-shell (Ubuntu)
** Information type changed from Private Security to Public Security
** Changed in: gnome-shell (Ubuntu)
Status: New => Confirmed
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https://bugs.launchpad.net/bugs/1842668
Title:
Workspace view is showing before unlocking 19.04
Status in gnome-shell package in Ubuntu:
Confirmed
Bug description:
This is sort of a strange issue and I'm open to any discussion on how
to further investigate. I lock my screen using the Gnome lock, then go
away for a few hours. When I return to wake up my computer, an
instance of my desktop from some time ago actually shows for a second
or two. After this, the lock screen lowers, prompting for a password.
This is weird. I swear this was an issue a few years ago and I
remember a blog post about it that was really popular, but it seemed
like it was taken super seriously and got fixed within a few months. I
feel like this is a major security issue because something is caching
my screen instance and is actually able to show it to a user before
unlock. The only thing is I can't seem to find the posting, or any
note that it was an issue at all. I specifically remember the post
mentioned something about porn as the captured desktop image.
Again, I can't seem to replicate, and I don't know what program runs
the lock. I'd love to do a log dump if someone can point me to
something to capture. I'm just not sure how to describe the issue, and
I can't really capture the issue with screenshots.
System Details
Acer Aspire TC-885-ACCFLi3O
19.04 64 bit
Processor: Intel® Core™ i3-8100 CPU @ 3.60GHz × 4
GNOME 3.32.1
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