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Date: Sun, 29 May 2016 22:02:53 -0400 (EDT)
From: cve-assign@...re.org
To: bfriesen@...ple.dallas.tx.us
Cc: cve-assign@...re.org, oss-security@...ts.openwall.com
Subject: Re: CVE Request: GraphicsMagick and ImageMagick popen() shell vulnerability via filename
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Hash: SHA256
> if the first character of the file specification is
> a '|', then the remainder of the filename is passed to the shell for
> execution using the POSIX popen(3C) function
>
> The simple solution to the problem is to disable the popen support
> (HAVE_POPEN) in GraphicsMagick's magick/blob.c as is done by the
> attached patch.
Use CVE-2016-5118.
> Previously supplied recommended patches for GraphicsMagick do
> successfully block this attack vector in SVG and MVG.
If there was a previous announcement of a vulnerability fix for a
subset of the exploitation methodologies, then a separate CVE ID is
also needed. The scope of CVE-2016-5118 is only the new "initial |
character" information announced in the
http://www.openwall.com/lists/oss-security/2016/05/29/7 post.
(For example, if there had previously been any type of announcement
that the
xlink:href="|
substring was being blocked in the native SVG readers, then that can
have its own unique CVE ID.)
- --
CVE Assignment Team
M/S M300, 202 Burlington Road, Bedford, MA 01730 USA
[ A PGP key is available for encrypted communications at
http://cve.mitre.org/cve/request_id.html ]
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