lockscreen sigabrt when change keyboard layout with some hotkeys
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
unity (Ubuntu) |
Confirmed
|
High
|
Unassigned |
Bug Description
To replicate the bug I follow these steps:
1) Configure your switch input to a key like ctrl or shift
2) Lock the session and in the login screen click the password input field so the focus is in the field
3) I press the keyboard short-cut to switch language from English to Hebrew. My shortcut is just the Super key ( I previously changed the keyboard short-cut to switch languages to be just the Super key, and disabled the default behavior of opening the launch pad when the Super key is pressed. )
What happens then is that for a second I can see the desktop (or any window which is currently opened) even though the session is locked, and then it flashes back to the login screen. Using a camera an attacker can take a snap of my screen.
Ubuntu 16.04.1 LTS
Unity: 7.4.0+16.
ProblemType: Bug
DistroRelease: Ubuntu 16.04
Package: unity 7.4.0+16.
ProcVersionSign
Uname: Linux 4.4.0-31-generic x86_64
.tmp.unity_
ApportVersion: 2.20.1-0ubuntu2.1
Architecture: amd64
CompizPlugins: No value set for `/apps/
CompositorRunning: compiz
CompositorUnred
CompositorUnred
CurrentDesktop: Unity
Date: Mon Aug 8 16:31:02 2016
DistUpgraded: Fresh install
DistroCodename: xenial
DistroVariant: ubuntu
GraphicsCard:
Intel Corporation 4 Series Chipset Integrated Graphics Controller [8086:2e12] (rev 03) (prog-if 00 [VGA controller])
Subsystem: Hewlett-Packard Company 4 Series Chipset Integrated Graphics Controller [103c:3646]
Subsystem: Hewlett-Packard Company 4 Series Chipset Integrated Graphics Controller [103c:3646]
GsettingsChanges:
b'org.compiz.core' b'outputs' b"['1280x1024+
b'org.compiz.core' b'active-plugins' b"['core', 'composite', 'opengl', 'regex', 'resize', 'vpswitch', 'animation', 'copytex', 'imgpng', 'expo', 'unitymtgrabhan
b'com.
b'org.
b'org.
InstallationDate: Installed on 2016-08-04 (3 days ago)
InstallationMedia: Ubuntu 16.04.1 LTS "Xenial Xerus" - Release amd64 (20160719)
MachineType: Hewlett-Packard HP Compaq 8000 Elite SFF PC
ProcKernelCmdLine: BOOT_IMAGE=
SourcePackage: unity
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 07/20/2011
dmi.bios.vendor: Hewlett-Packard
dmi.bios.version: 786G7 v01.13
dmi.board.name: 3646h
dmi.board.vendor: Hewlett-Packard
dmi.chassis.type: 4
dmi.chassis.vendor: Hewlett-Packard
dmi.modalias: dmi:bvnHewlett-
dmi.product.name: HP Compaq 8000 Elite SFF PC
dmi.sys.vendor: Hewlett-Packard
version.compiz: compiz 1:0.9.12.
version.ia32-libs: ia32-libs N/A
version.libdrm2: libdrm2 2.4.67-
version.
version.
version.
version.
version.
version.
version.
version.
xserver.bootTime: Mon Aug 8 15:32:09 2016
xserver.configfile: default
xserver.errors:
xserver.logfile: /var/log/Xorg.0.log
xserver.outputs:
xserver.version: 2:1.18.3-1ubuntu2.3
information type: | Private Security → Public Security |
Changed in unity (Ubuntu): | |
importance: | Undecided → High |
summary: |
- Momentarily bypass the login screen without password + lockscreen sigabrt when change keyboard layout with some hotkeys |
description: | updated |
Status changed to 'Confirmed' because the bug affects multiple users.