*** This bug is a security vulnerability ***
You have been subscribed to a public security bug by Marc Deslauriers
(mdeslaur):
I think I found a bug in the Ubuntu 13.04 / Gnome lock screen feature.
To reproduce:
0 login as the first user,
1 lock screen with Ctrl-Alt-L or with Lock function in upper right corner
2 unhide the login prompt with the mouse gesture
3 select login as another user
4 when you prompted in the other virtual terminal for the username / password
press Ctrl-Alt-F7
You should get the first user's desktop unlocked
ProblemType: Bug
DistroRelease: Ubuntu 13.04
Package: gnome-screensaver 3.6.1-0ubuntu3
ProcVersionSignature: Ubuntu 3.8.0-23.34-generic 3.8.11
Uname: Linux 3.8.0-23-generic x86_64
NonfreeKernelModules: nvidia
ApportVersion: 2.9.2-0ubuntu8
Architecture: amd64
Date: Wed Jun 5 14:23:28 2013
EcryptfsInUse: Yes
GnomeSessionIdleInhibited: No
GnomeSessionInhibitors: None
GsettingsGnomeSession:
org.gnome.desktop.session idle-delay uint32 1800
org.gnome.desktop.session session-name 'gnome'
InstallationDate: Installed on 2013-05-03 (32 days ago)
InstallationMedia: Ubuntu 12.10 "Quantal Quetzal" - Release amd64 (20121017.5)
MarkForUpload: True
ProcEnviron:
TERM=xterm
PATH=(custom, no user)
XDG_RUNTIME_DIR=<set>
LANG=en_US.UTF-8
SHELL=/bin/bash
SourcePackage: gnome-screensaver
UpgradeStatus: Upgraded to raring on 2013-05-06 (30 days ago)
** Affects: gnome-screensaver (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug raring
--
Lock screen / Ctrl-Alt-F7 Security bug
https://bugs.launchpad.net/bugs/1187884
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