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Category:   Application (Generic)  >   gnome-screensaver Vendors:   Gnome Development Team
gnome-screensaver Lets Local Users Bypass the Password
SecurityTracker Alert ID:  1019749
SecurityTracker URL:  http://securitytracker.com/id/1019749
CVE Reference:   CVE-2008-0887   (Links to External Site)
Date:  Apr 2 2008
Impact:   User access via local system
Fix Available:  Yes  Vendor Confirmed:  Yes  Exploit Included:  Yes  
Version(s): prior to 2.22.1
Description:   A vulnerability was reported in gnome-screensaver. A local user can bypass the login function.

When the system uses a remote NIS server for authentication, a physically local user that can cause a network outage can cause gnome-screensaver to crash and unlock the screen.

Alan Matsuoka reported this vulnerability.

Impact:   A physically local user can bypass the screensaver password function.
Solution:   The vendor has issued a fixed version (2.22.1).
Vendor URL:  live.gnome.org/GnomeScreensaver/ (Links to External Site)
Cause:   Access control error
Underlying OS:   Linux (Any)

Message History:   This archive entry has one or more follow-up message(s) listed below.
Apr 2 2008 (Red Hat Issues Fix) gnome-screensaver Lets Local Users Bypass the Password   (bugzilla@redhat.com)
Red Hat has released a fix for Red Hat Enterprise Linux 5.
Apr 3 2008 (Red Hat Issues Fix) gnome-screensaver Lets Local Users Bypass the Password   (bugzilla@redhat.com)
Red Hat has released a fix for Red Hat Enterprise Linux FasTrack 5.



 Source Message Contents

Date:  Wed, 2 Apr 2008 11:48:45 -0500
Subject:  GNOME screensaver


Red Hat reported:

A flaw was found in the way gnome-screensaver verified user passwords. When
a system used a remote directory service for login credentials, a local
attacker able to cause a network outage could cause gnome-screensaver to
crash, unlocking the screen. (CVE-2008-0887)
 
 


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