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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