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Category:   Application (Generic)  >   Glibc Vendors:   GNU [multiple authors]
Glibc Directory Traversal in Processing LC_* Environment Variables May Let Local Users Gain Elevated Privileges
SecurityTracker Alert ID:  1030569
SecurityTracker URL:  http://securitytracker.com/id/1030569
CVE Reference:   CVE-2014-0475   (Links to External Site)
Date:  Jul 15 2014
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.

A local user can set arbitrary locales in certain LC_* environment variables and then execute a local program to exploit a directory traversal flaw in the processing of paths and potentially load and execute arbitrary code with the privileges of the local program.

The vendor has assigned bug ID 17137 to this vulnerability.

Stephane Chazelas reported this vulnerability.

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

https://sourceware.org/git/gitweb.cgi?p=glibc.git;a=commitdiff;h=4e8f95a0df7

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.
Aug 30 2014 (Red Hat Issues Fix) Glibc Directory Traversal in Processing LC_* Environment Variables May Let Local Users Gain Elevated Privileges
Red Hat has issued a fix for Red Hat Enterprise Linux 5, 6, and 7.
Sep 25 2014 (Cisco Issues Advisory for Cisco Unified Communications Domain Manager) Glibc Directory Traversal in Processing LC_* Environment Variables May Let Local Users Gain Elevated Privileges
Cisco has issued an advisory for Cisco Unified Communications Domain Manager.



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