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Category:   Application (Generic)  >   libpng Vendors:   libpng.sourceforge.net
libpng Buffer Overflow in png_combine_row() Lets Remote Users Execute Arbitrary Code
SecurityTracker Alert ID:  1031444
SecurityTracker URL:  http://securitytracker.com/id/1031444
CVE Reference:   CVE-2014-9495   (Links to External Site)
Updated:  Jan 14 2015
Original Entry Date:  Dec 25 2014
Impact:   Execution of arbitrary code via network, User access via network
Fix Available:  Yes  Vendor Confirmed:  Yes  
Version(s): 1.6.15; possibly earlier versions
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 file that, when processed by the target application using libpng, will trigger a buffer overflow in png_combine_row() and execute arbitrary code on the target system. The code will run with the privileges of the target user.

Alex Eubanks reported this vulnerability.

Impact:   A remote user can create a file that, when processed by the target application using libpng, will execute arbitrary code on the target user's system.
Solution:   The vendor has issued a fix (1.5.21, 1.6.16).

The vendor's advisory is available at:

http://sourceforge.net/p/png-mng/mailman/message/33173461/

Vendor URL:  libpng.org/ (Links to External Site)
Cause:   Boundary error
Underlying OS:  Linux (Any), UNIX (Any)

Message History:   None.


 Source Message Contents

Date:  Mon, 22 Dec 2014 17:16:53 -0600
Subject:  [oss-security] CVE Request: libpng 1.6.15 Heap Overflow

--047d7b472a94ff2890050ad64093
Content-Type: text/plain; charset=UTF-8

I am requesting a CVE for a heap-overflow in libpng 1.6.15. It's my
understanding that versions 1.6.9-1.6.15 are vulnerable, and according to
patch notes it looks like some revisions in the 1.5 branch may have been
affected as well. However, I've only tested 1.6.15 and can only speak for
it.

Link to announcement of new version:
http://sourceforge.net/p/png-mng/mailman/message/33173461/

Link to a description of the vulnerability:
http://tfpwn.com/files/libpng_heap_overflow_1.6.15.txt

Please let me know!

- Alex

--047d7b472a94ff2890050ad64093--
 
 


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