Practically-infinite loop in MagickCore/image.c - SetImageBackgroundColor

[moshekaplan]

https://bugs.launchpad.net/ubuntu/+source/imagemagick/+bug/1492885

[urban-warrior]

Your pict_almost_infinite_loop.pict image converted without complaint for us:

setenv MAGICK_TMPDIR .
convert pict_almost_infinite_loop.pict null:

Modern releases of ImageMagick (6.9.1-5+) check the width and height of an image against the policy.xml file. See http://www.imagemagick.org/discourse-server/viewtopic.php?f=4&t=26801. In the example policy from the post, the maximum width / height is set to 8K. If any image exceeds these limits, ImageMagick exits immediately with a resource policy violation. For older versions of ImageMagick, the memory, map, area, and disk policy values from our post should help prevent denial-of-service for large image requests by returning a resource policy violation.

[moshekaplan]

Interesting. I had tested this on the version from git, where it ran
indefinitely.

On Sep 7, 2015 8:28 AM, "ImageMagick" notifications@github.com wrote:

Closed #27.

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