Date: Thu, 1 Jul 2010 10:38:17 +0200 From: Tomas Hoger <thoger@...hat.com> To: oss-security@...ts.openwall.com Cc: dan.j.rosenberg@...il.com 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: http://bugzilla.maptools.org/show_bug.cgi?id=2210 > 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: https://bugs.launchpad.net/bugs/597246 https://bugzilla.redhat.com/show_bug.cgi?id=603024#c9 http://bugzilla.maptools.org/show_bug.cgi?id=1996#c12 > 3. OOB read in TIFFRGBAImageGet() leading to crash. Reference: > https://bugs.launchpad.net/ubuntu/+source/tiff/+bug/591605 http://bugzilla.maptools.org/show_bug.cgi?id=2216 -- Tomas Hoger / Red Hat Security Response Team
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