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Category:   Application (Generic)  >   libpng Vendors:   libpng.sourceforge.net
libpng Memory Error in png_inflate() Lets Remote Users Execute Arbitrary Code
SecurityTracker Alert ID:  1026823
SecurityTracker URL:  http://securitytracker.com/id/1026823
CVE Reference:   CVE-2011-3045   (Links to External Site)
Date:  Mar 20 2012
Impact:   Execution of arbitrary code via network, User access via network
Fix Available:  Yes  Vendor Confirmed:  Yes  

Description:   A vulnerability was reported in libpng. A remote user can cause arbitrary code to be executed on the target user's system.

A remote user can create a specially crafted Portable Network Graphics (PNG) image file that, when loaded by the target user via an application that uses libpng, will trigger an out-of-bounds heap buffer read and execute arbitrary code on the target system. The code will run with the privileges of the target user or application running libpng.

The expansion of certain iCCP, iTXt, and zTXt PNG image file chunks is affected.

Impact:   A remote user can create a file that, when loaded by the target user, will execute arbitrary code on the target user's system.
Solution:   The vendor has issued a source code fix, available at:

http://libpng.git.sourceforge.net/git/gitweb.cgi?p=libpng/libpng;a=commitdiff;h=a8c319a2b281af68f7ca0e2f9a28ca57b44ceb2b#patch3

Vendor URL:  www.libpng.org/pub/png/libpng.html (Links to External Site)
Cause:   Access control error
Underlying OS:  Linux (Any), UNIX (Any)

Message History:   This archive entry has one or more follow-up message(s) listed below.
Mar 20 2012 (Red Hat Issues Fix) libpng Memory Error in png_inflate() Lets Remote Users Execute Arbitrary Code
Red Hat has issued a fix for Red Hat Enterprise Linux 5 and 6.



 Source Message Contents



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