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Category:   Application (Generic)  >   GNOME Display Manager Vendors:   Gnome Development Team
GNOME Display Manager Cache Directory Symlink Flaw Lets Local Users Gain Elevated Privileges
SecurityTracker Alert ID:  1025264
SecurityTracker URL:  http://securitytracker.com/id/1025264
CVE Reference:   CVE-2011-0727   (Links to External Site)
Date:  Mar 29 2011
Impact:   Root access via local system, User access via local system
Fix Available:  Yes  Vendor Confirmed:  Yes  
Version(s): 2.28.0 to prior to 2.32.1
Description:   A vulnerability was reported in GNOME Display Manager. A local user can obtain elevated privileges on the target system.

A local user can exploit a race condition in the processing of the cache directories that are used to store dmrc and face icon files to cause the GNOME Display Manager (gdm) to change the ownership of an arbitrary file.

Sebastian Krahmer of the SuSE Security Team reported this vulnerability.

Impact:   A local user can obtain elevated privileges on the target system.
Solution:   The vendor has issued a fix (2.32.1).

The vendor's advisory is available at:

http://ftp.acc.umu.se/pub/GNOME/sources/gdm/2.32/gdm-2.32.1.news

Vendor URL:  projects.gnome.org/gdm/ (Links to External Site)
Cause:   Access control error, State error
Underlying OS:  Linux (Any)

Message History:   This archive entry has one or more follow-up message(s) listed below.
Mar 29 2011 (Red Hat Issues Fix) GNOME Display Manager Cache Directory Symlink Flaw Lets Local Users Gain Elevated Privileges
Red Hat has issued a fix for Red Hat Enterprise Linux 6.



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