Thanks for taking the time to report this bug and helping to make Ubuntu
better. We appreciate the difficulties you are facing, but this appears
to be a regular (non-security) bug. I have unmarked it as a security
issue since this bug does not show evidence of allowing attackers to
cross privilege boundaries nor directly cause loss of data/privacy.
Please feel free to report any other bugs you may find.
** Information type changed from Private Security to Public
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You received this bug notification because you are a member of Desktop
Packages, which is subscribed to gnome-screensaver in Ubuntu.
https://bugs.launchpad.net/bugs/1152313
Title:
gnome-screensaver crashed with SIGSEGV
Status in “gnome-screensaver” package in Ubuntu:
New
Bug description:
Open UrbanTerror 2
Join a Game
Wait for screensaver without doing anything.
The gnome-screensaver die.
Because the new gnome-screensaver is used to lock the screen it is a
security vuln. A malware can use that bug to unlock the computer.
ProblemType: Crash
DistroRelease: Ubuntu 12.10
Package: gnome-screensaver 3.6.0-0ubuntu2.1
ProcVersionSignature: Ubuntu 3.5.0-26.40-generic 3.5.7.6
Uname: Linux 3.5.0-26-generic x86_64
NonfreeKernelModules: fglrx
ApportVersion: 2.6.1-0ubuntu10
Architecture: amd64
CrashCounter: 1
Date: Thu Mar 7 21:20:12 2013
ExecutablePath: /usr/bin/gnome-screensaver
GnomeSessionIdleInhibited: No
GnomeSessionInhibitors: None
GsettingsGnomeSession:
org.gnome.desktop.session idle-delay uint32 60
org.gnome.desktop.session session-name 'ubuntu'
InstallationDate: Installed on 2012-11-02 (125 days ago)
InstallationMedia: Ubuntu 12.10 Quantal Quetzal - Release amd64 (20121017.5)
MarkForUpload: True
ProcCmdline: /usr/bin/gnome-screensaver --no-daemon
SegvAnalysis:
Segfault happened at: 0x7f68832f0250:mov0x60(%rdi),%rcx
PC (0x7f68832f0250) ok
source 0x60(%rdi) (0x0060) not located in a known VMA region (needed
readable region)!
destination %rcx ok
SegvReason: reading NULL VMA
Signal: 11
SourcePackage: gnome-screensaver
StacktraceTop:
?? () from /usr/lib/x86_64-linux-gnu/libgdk-3.so.0
?? () from /usr/lib/x86_64-linux-gnu/libgdk-3.so.0
?? () from /usr/lib/x86_64-linux-gnu/libgdk-3.so.0
?? () from /usr/lib/x86_64-linux-gnu/libgdk-3.so.0
?? () from /usr/lib/x86_64-linux-gnu/libgdk-3.so.0
Title: gnome-screensaver crashed with SIGSEGV
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm cdrom dip disk kismet libvirtd lpadmin plugdev sambashare src
sudo vboxusers
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