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Date: Tue, 27 Sep 2016 09:56:58 -0500 (CDT)
From: Bob Friesenhahn <bfriesen@...ple.dallas.tx.us>
To: oss-security@...ts.openwall.com
Subject: Re: ImageMagick identify "d:" hangs
On Tue, 27 Sep 2016, Jakub Wilk wrote:
> * Bob Friesenhahn <bfriesen@...ple.dallas.tx.us>, 2016-09-27, 08:48:
>> From my own investigations, I used
>>
>> identify -debug all "d:"
>>
>> and see that a temporary file is reported to be created and then the
>> program hangs which no apparent CPU usage.
>
> strace tells me that it waits for input on stdin.
> This is a simpler way to make it "hang":
>
> identify -
This is what I expected was happening. The main thing to investigate
is if the "ImageTragick" patches distributions are using do protect
against this possible issue as well.
Bob
--
Bob Friesenhahn
bfriesen@...ple.dallas.tx.us, http://www.simplesystems.org/users/bfriesen/
GraphicsMagick Maintainer, http://www.GraphicsMagick.org/
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