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Category:   Application (Generic)  >   libpng Vendors:   libpng.sourceforge.net
(Oracle Issues Fix for Solaris) libpng Chunk Decompression Heap Overflow Lets Remote Users Execute Arbitrary Code
SecurityTracker Alert ID:  1028301
SecurityTracker URL:  http://securitytracker.com/id/1028301
CVE Reference:   CVE-2011-3026   (Links to External Site)
Date:  Mar 15 2013
Impact:   Execution of arbitrary code via network, User access via network
Fix Available:  Yes  Vendor Confirmed:  Yes  
Version(s): 1.4.x, 1.6.x
Description:   A vulnerability was reported in libpng. A remote user can cause arbitrary code to be executed on the target user's system.

The software does not properly verify a size value when allocating memory during chunk decompression. A remote user can create a specially crafted PNG image file that, when loaded by the target user or application, will trigger a heap overflow in png_decompress_chunk() and execute arbitrary code on the target system. The code will run with the privileges of the target user or application.

The vulnerability resides in 'pngrutil.c'.

Jueri Aedla reported this vulnerability.

Impact:   A remote user can create a PNG image file that, when loaded by the target user or application, will execute arbitrary code on the target system.
Solution:   Oracle has issued a fix for Solaris.

The Oracle advisory is available at:

http://blogs.oracle.com/sunsecurity/entry/multiple_vulnerabilities_in_libpng2

Vendor URL:  www.libpng.org/pub/png/libpng.html (Links to External Site)
Cause:   Boundary error
Underlying OS:  UNIX (Solaris - SunOS)
Underlying OS Comments:  10, 11.1

Message History:   This archive entry is a follow-up to the message listed below.
Feb 17 2012 libpng Chunk Decompression Heap Overflow Lets Remote Users Execute Arbitrary Code



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