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Date: Fri, 10 Feb 2012 11:58:28 -0700
From: Vincent Danen <vdanen@...hat.com>
To: oss-security@...ts.openwall.com
Subject: Re: imagemagick invalid validation DoS CVE-2012-0247
and CVE-2012-02478
* [2012-02-10 11:51:57 -0700] Vincent Danen wrote:
>* [2012-02-10 13:36:24 +0200] Henri Salo wrote:
>
>>Concerning ImageMagick 6.7.5-0 and earlier:
>>
>>CVE-2012-0247: When parsing a maliciously crafted image with incorrect offset and count in the ResolutionUnit tag in EXIF IFD0, ImageMagick copies two bytes into an invalid address.
>>CVE-2012-0248: When parsing a maliciously crafted image with an IFD whose all IOP tags' value offsets point to the beginning of the IFD itself. As a result, ImageMagick parses the IFD structure indefinitely, causing a denial of service.
>>
>>For more details please read: http://www.imagemagick.org/discourse-server/viewtopic.php?f=4&t=20286
>>CERT-FI: http://www.cert.fi/haavoittuvuudet/2012/haavoittuvuus-2012-021.html (finnish)
>>Reported to Debian: http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=659339
>
>Do we know when this was introduced? At a quick glance here, I don't
>see magick/property.c in 6.2.8, but I do see it in 6.6.5, so somewhere
>between those two versions that file and functionality was added.
Sorry, I do see it in 6.5.4 as well, so between 6.2.8 and 6.5.4.
--
Vincent Danen / Red Hat Security Response Team
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