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Orb v2.0.01.0049-V2.54.0018 DirectShow Filter Integer Division By Zero
From: Matthew Bergin <matt.bergin () hotmail com>
Date: Thu, 4 Mar 2010 09:07:37 -0800












-------------------------------------------

Orb
v2.0.01.0049-V2.54.0018

DirectShow Filter
Integer Division By Zero Remote DOS

Discovered by:
Matthew Bergin

-------------------------------------------

 

Timeline:

Discovery                            * 2/20/2010

Reported                             * 2/22/2010

Response                            * 2/22/2010
Additional Info  Sent              * 2/23/2010

Response                            *
2/23/2010

Response                            *
2/26/2010Crash Confirmed                   * 3/03/2010



Patch date: Approx. 2 weeks

                              Expected: 3/19/2010



Affected File:
aac_parser.ax



Description: 
            When Orb is first installed it registers
several Direct Show filters with the system. When registered these filters are
then called whenever a file which has a dependency on such a required filter is
accessed. By specially crafting specific headers embedded into an mp3 file we
can create a direct code path to code which is vulnerable to a integer division
by zero. This vulnerability can be triggered remotely be embedding the crafted
mp3 file into HTML. It is also not dependent on a certain media player.
Attached is a PoC (Proof-Of-Concept) I wrote for this specific bug. Also
included is a Rebuild file for IDA Pro examining the crash.

                                          
                                          
_________________________________________________________________
Hotmail: Powerful Free email with security by Microsoft.
http://clk.atdmt.com/GBL/go/201469230/direct/01/

Attachment: aac_parser_int_div_by_0_orb.zip
Description:

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