From: Cristy <urban-warrior@imagemagick.org>
Date: Mon, 22 Jan 2018 00:17:49 +0000 (-0500)
Subject: An image depth of 0 is bogus
X-Git-Tag: 7.0.7-22~7
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=3e7eda21deedffc46c1abee71a4ce92b5eadde26;p=imagemagick

An image depth of 0 is bogus
Credit OSS Fuzz
---

diff --git a/MagickCore/image.c b/MagickCore/image.c
index c9e182df1..2d887944a 100644
--- a/MagickCore/image.c
+++ b/MagickCore/image.c
@@ -2554,7 +2554,7 @@ MagickExport MagickBooleanType SetImageExtent(Image *image,const size_t columns,
     ThrowBinaryException(ImageError,"NegativeOrZeroImageSize",image->filename);
   image->columns=columns;
   image->rows=rows;
-  if (image->depth > (8*sizeof(MagickSizeType)))
+  if ((image->depth == 0) || (image->depth > (8*sizeof(MagickSizeType))))
     ThrowBinaryException(ImageError,"ImageDepthNotSupported",image->filename);
   return(SyncImagePixelCache(image,exception));
 }