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Ogg DirectShow Vulnerable Libraries

Ogg DirectShow Vulnerable Libraries
Posted Oct 4, 2012
Authored by Stefan Kanthak

Ogg DirectShow filters are distributed and installed with vulnerable MSVC++ 2008 runtime libraries.

tags | advisory
MD5 | 41c85f8581b2c23add5e711e534039e5

Ogg DirectShow Vulnerable Libraries

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Hi @ll,

the Ogg DirectShow filters available from <http://www.xiph.org/dshow/>
are distributed with and install vulnerable MSVC++ 2008 runtime libraries
MSVC?90.DLL.

See <http://support.microsoft.com/kb/2467174>
and <http://support.microsoft.com/kb/2538243>
resp. <http://www.microsoft.com/technet/security/bulletin/MS11-025.mspx>


To make things worse, the vulnerable libraries are NOT installed as
side-by-side components below %SystemRoot%\WinSxS\, but as private
components in the applications directory, where they are not detected
and not updated by tools like Windows Update Agent or Secunia PSI.

Cf. <http://support.microsoft.com/kb/835322>


Additionally, the installer places the 64-bit components into the
wrong path "%ProgramFiles(x86)%\Xiph.org\OpenCodecs\x64\".


Workaround:
~~~~~~~~~~~

Delete all MSVC?.DLL installed with the Ogg DirectShow filters
in "%ProgramFiles(x86)%\Xiph.org\OpenCodecs\" and
"%ProgramFiles(x86)%\Xiph.org\OpenCodecs\x64\".


Timeline:
~~~~~~~~~

2010-05-23 informed maintainer about errors and problems in
version 0.82.16930

2010-05-25 maintainer replied "will have a look"

2010-07-21 maintainer released version 0.84.17338

2010-07-21 informed maintainer about problems still not fixed

2011-01-12 maintainer released "current" version 0.85.17777

2012-03-08 asked maintainer for a fix for the vulnerable MSVCRT

2012-03-09 maintainer replied "planning update before easter"

2012-10-03 report published


Stefan Kanthak

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