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Date: Thu, 1 Jul 2010 10:38:17 +0200
From: Tomas Hoger <>
Subject: Re: CVE requests: LibTIFF

On Wed, 30 Jun 2010 14:58:58 -0400 Dan Rosenberg wrote:

> 1.  OOB read in TIFFExtractData() leading to crash (no reference,
> originally disclosed by me in this thread, fixed upstream with release
> 3.9.4 and security fix backported by Ubuntu).

Not really a reference for the issue, but at least for the patch:

> 2.  NULL pointer dereference due to invalid td_stripbytecount leading
> to crash (distinct from CVE-2010-2443).  The upstream changelog entry
> for 3.9.4 reads:
> 	* libtiff/tif_ojpeg.c (OJPEGReadBufferFill): Report an error
>       and avoid a crash if the input file is so broken that the strip
> 	offsets are not defined.

This changelog entry refers to td_stripoffset issue (aka CVE-2010-2443)
and it first appears in 3.9.3 changelog.  td_stripbytecount case is not
yet fixed upstream as far as I can tell.

References for CVE-2010-2482:  

> 3.  OOB read in TIFFRGBAImageGet() leading to crash.  Reference:

Tomas Hoger / Red Hat Security Response Team

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