Date: Thu, 8 Aug 2013 14:06:04 -0400 (EDT) From: Jan Lieskovsky <jlieskov@...hat.com> To: Kurt Seifried <kseifried@...hat.com> Cc: "Steven M. Christey" <coley@...us.mitre.org>, Pedro Ribeiro <pedrib@...il.com>, Frank Warmerdam <warmerdam@...ox.com>, oss-security@...ts.openwall.com Subject: Re: CVE Request -- Four (stack-based) buffer overflows and one use-after-free in libtiff v4.0.3 reported by Pedro Ribeiro 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: >  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 > > While they are present in the tools (=> not that urgent like they > would be in the library itself), there's been CVE ids assigned > in the past for TIFF library tools issues too. To mention some examples: > http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2013-1961 > http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2013-1960 > http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2012-4564 > http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2012-3401 > > Since there doesn't seem to be CVE identifiers assigned for these >  issues yet, could you allocate them? > > FWIW regarding the patches and upstream bugs - if my information > is up2date, there aren't upstream bugs and patches for these issues > yet. > > Thank you && Regards, Jan. > -- > Jan iankko Lieskovsky / Red Hat Security Response Team >
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