*** This bug is a security vulnerability ***
Public security bug reported:
Steps to reproduce:
1. Lock the screen
2. Let the lockscreen blank
3. Press ALT+TAB
What happens:
The application switcher appears and it's possible to switch between
applications. The chosen application will get keyboard focus and any input will
go there.
What should happen:
Nothing. Lockscreen should grab the keyboard and stop the input from going
anywhere.
This has security implications. For example it's possible to open the
"Run command" view and run "unity --replace" to destroy the lockscreen
and open the session.
ProblemType: Bug
DistroRelease: Ubuntu 14.04
Package: unity 7.2.0+14.04.20140410.1-0ubuntu1
ProcVersionSignature: Ubuntu 3.13.0-23.45-generic 3.13.8
Uname: Linux 3.13.0-23-generic x86_64
ApportVersion: 2.14.1-0ubuntu2
Architecture: amd64
CompizPlugins: No value set for
`/apps/compiz-1/general/screen0/options/active_plugins'
CurrentDesktop: Unity
Date: Fri Apr 11 10:06:50 2014
InstallationDate: Installed on 2014-02-23 (46 days ago)
InstallationMedia: Ubuntu 14.04 LTS "Trusty Tahr" - Alpha amd64 (20140223)
SourcePackage: unity
UpgradeStatus: No upgrade log present (probably fresh install)
** Affects: unity
Importance: Undecided
Assignee: Sami Jaktholm (sjakthol)
Status: In Progress
** Affects: unity (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug trusty
** Also affects: unity
Importance: Undecided
Status: New
** Information type changed from Private Security to Public Security
** Changed in: unity
Status: New => In Progress
** Changed in: unity
Assignee: (unassigned) => Sami Jaktholm (sjakthol)
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https://bugs.launchpad.net/bugs/1306417
Title:
Lockscreen can be bypassed after screen has blanked
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