IrfanView Formats PlugIn 'NCSEcw.dll' Heap Based Buffer Overflow Vulnerability

Bugtraq ID:	53744
Class:	Boundary Condition Error
CVE:
Remote:	Yes
Local:	No
Published:	May 31 2012 12:00AM
Updated:	Jun 04 2012 12:31PM
Credit:	Francis Provencher
Vulnerable:	IrfanView Formats PlugIn 4.33
Not Vulnerable:	IrfanView Formats PlugIn 4.34

IrfanView Formats PlugIn 'NCSEcw.dll' Heap Based Buffer Overflow Vulnerability

The Formats PlugIn for IrfanView is prone to a remote heap-based buffer-overflow vulnerability because the software fails to properly bounds-check user-supplied input before copying it to an insufficiently sized memory buffer.

Successful exploits allow remote attackers to execute arbitrary code in the context of the vulnerable application. Failed exploit attempts likely result in denial-of-service conditions.

Formats PlugIn 4.33 is vulnerable; other versions may also be affected.

IrfanView Formats PlugIn 'NCSEcw.dll' Heap Based Buffer Overflow Vulnerability

The researcher who discovered this issue has created a proof-of-concept. Please see the references for more information.

IrfanView Formats PlugIn 'NCSEcw.dll' Heap Based Buffer Overflow Vulnerability

Solution:
The vendor has fixed the issue. Please see the references for more information.

IrfanView Formats PlugIn 'NCSEcw.dll' Heap Based Buffer Overflow Vulnerability

References:

• IrfanView 4.33 Format PlugIn ECW Decompression Heap Overflow (Protek Research Lab's)
  
• IrfanView Homepage (IrfanView)
  
• IrfanView PlugIns (IrfanView)