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Date: Fri, 09 Aug 2013 22:05:00 -0600
From: Kurt Seifried <kseifried@...hat.com>
To: oss-security@...ts.openwall.com
CC: Jan Lieskovsky <jlieskov@...hat.com>,
        "Steven M. Christey" <coley@...us.mitre.org>,
        Pedro Ribeiro <pedrib@...il.com>,
        Frank Warmerdam <warmerdam@...ox.com>
Subject: Re: CVE Request -- Four (stack-based) buffer overflows
 and one use-after-free in libtiff v4.0.3 reported by Pedro Ribeiro

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On 08/08/2013 12:06 PM, Jan Lieskovsky wrote:
> Hello vendors,
> 
> since Kurt asked for it, below is the summary of the issues.
> 
>> 
>> Hello Kurt, Steve, vendors,
>> 
>> Pedro Ribeiro has recently reported the following five security 
>> flaws being present in the tools of TIFF library: [1]
>> http://www.asmail.be/msg0055359936.html
> 
> * Issue #1 (tools/gif2tiff.c): Stack-based buffer overflow in the
> gif2tiff tool when reading GIF extension block on crafted GIF
> image * Issue #2 (tools/gif2tiff.c): Stack-based buffer overflow in
> the gif2tiff tool when decoding a GIF raster image * Issue #3
> (tools/gif2tiff.c): Stack-based buffer overflow in the gif2tiff
> tool when decoding a GIF raster image (same routine like in case
> #2, just different line code) * Issue #4 (tools/tiff2pdf.c): Use
> after free in tiff2pdf tool when reading TIFF file raster image
> data and writing them to the output PDF XObject's image dictionary
> stream * Issue #5 (tools/rgb2ycbcr.c): Stack-based buffer overflow
> in the rgb2ycbcr tool when performing RGBA to YCbCr conversion
> (converting non-YCbCr TIFF image to a YCbCr one) when processing
> crafted rasted date of provided TIFF image file
> 
> Thank you && Regards, Jan. -- Jan iankko Lieskovsky / Red Hat
> Security Response Team

CVE MERGE'ing all the stack based buffer overflows into a single CVE.

CVE-2013-4231 libtiff v4.0.3 Stack-based buffer overflow (4 in total)

CVE-2013-4232 libtiff v4.0.3 use after free

- -- 
Kurt Seifried Red Hat Security Response Team (SRT)
PGP: 0x5E267993 A90B F995 7350 148F 66BF 7554 160D 4553 5E26 7993
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