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Category:   Application (Generic)  >   Glibc Vendors:   GNU [multiple authors]
Glibc Regression Lets Local Users Gain Elevated Privileges
SecurityTracker Alert ID:  1025289
SecurityTracker URL:  http://securitytracker.com/id/1025289
CVE Reference:   CVE-2011-0536   (Links to External Site)
Date:  Apr 5 2011
Impact:   Execution of arbitrary code via local system, User access via local system
Fix Available:  Yes  Vendor Confirmed:  Yes  

Description:   A vulnerability was reported in Glibc. A local user can obtain elevated privileges on the target system.

The previous fix for CVE-2010-3847 [Alert ID 1024619] introduces a regression in the expansion of the $ORIGIN dynamic string token specified in the RPATH and RUNPATH entries in the ELF library header. A local user can exploit this to cause a set user id (setuid) or set group id (setgid) program to execute arbitrary commands with elevated privileges.

Impact:   A local user can 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=commitdiff;h=22cd1c9bcf57c5829d65b6da825f7a459d40c9eb

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 5 2011 (Red Hat Issues Fix) Glibc Regression Lets 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 Regression Lets Local Users Gain Elevated Privileges
VMware has issued a fix for VMware ESX.



 Source Message Contents



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