File ImageMagick-CVE-2017-13768.patch of Package ImageMagick.9293

Index: ImageMagick-6.8.8-1/magick/identify.c
===================================================================
--- ImageMagick-6.8.8-1.orig/magick/identify.c	2018-03-05 19:49:29.187919292 +0100
+++ ImageMagick-6.8.8-1/magick/identify.c	2018-03-05 19:49:29.195919427 +0100
@@ -910,7 +910,8 @@ MagickExport MagickBooleanType IdentifyI
                 pixel;
 
               GetMagickPixelPacket(image,&pixel);
-              SetMagickPixelPacket(image,p,indexes+x,&pixel);
+              if (p != (const PixelPacket *) NULL)
+                SetMagickPixelPacket(image,p,indexes+x,&pixel);
               (void) QueryMagickColorname(image,&pixel,SVGCompliance,tuple,
                 &image->exception);
               (void) FormatLocaleFile(file,"  Alpha: %s ",tuple);
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