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Category:   Application (Generic)  >   Glibc Vendors:   GNU [multiple authors]
Glibc Locale Command May Let Local Users Gain Elevated Privileges
SecurityTracker Alert ID:  1025286
SecurityTracker URL:  http://securitytracker.com/id/1025286
CVE Reference:   CVE-2011-1095   (Links to External Site)
Date:  Apr 4 2011
Impact:   Execution of arbitrary code via local system, User access via local system
Fix Available:  Yes  Vendor Confirmed:  Yes  Exploit Included:  Yes  
Version(s): 2.12.1 and prior versions
Description:   A vulnerability was reported in Glibc. A local user may be able to obtain elevated privileges on the target system.

The locale command does not properly escape user-supplied output. A local user with the ability to set the local environment variables of a script that performs shell evaluation of the output of the locale command may be able to cause arbitrary commands to be executed by the target script. The commands will run with the privileges of the target script.

Harald van Dijk reported this vulnerability.

Impact:   A local user may be able to obtain elevated privileges on the target system.
Solution:   The vendor has issued a source code fix, available at:

http://sourceware.org/git/?p=glibc.git;a=patch;h=026373745eab50a683536d950cb7e17dc98c4259

Vendor URL:  www.gnu.org/software/libc/ (Links to External Site)
Cause:   Input validation error
Underlying OS:  Linux (Any)

Message History:   This archive entry has one or more follow-up message(s) listed below.
Apr 4 2011 (Red Hat Issues Fix) Glibc Locale Command May Let Local Users Gain Elevated Privileges
Red Hat has issued a fix for Red Hat Enterprise Linux 5.
Apr 5 2011 (Red Hat Issues Fix) Glibc Locale Command May Let Local Users Gain Elevated Privileges
Red Hat has issued a fix for Red Hat Enterprise Linux 6.
Jul 29 2011 (VMware Issues Fix for ESX) Glibc Locale Command May Let Local Users Gain Elevated Privileges
VMware has issued a fix for VMware ESX.
Feb 14 2012 (Red Hat Issues Fix) Glibc Locale Command May Let Local Users Gain Elevated Privileges
Red Hat has issued a fix for Red Hat Enterprise Linux 4.



 Source Message Contents



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