File ImageMagick-CVE-2020-27755.patch of Package ImageMagick.30356

Index: ImageMagick-7.0.7-34/MagickCore/image.c
===================================================================
--- ImageMagick-7.0.7-34.orig/MagickCore/image.c	2020-12-08 18:20:16.288101448 +0100
+++ ImageMagick-7.0.7-34/MagickCore/image.c	2020-12-08 18:20:16.768104691 +0100
@@ -2639,8 +2639,18 @@ MagickExport MagickBooleanType SetImageE
     ThrowBinaryException(ImageError,"NegativeOrZeroImageSize",image->filename);
   image->columns=columns;
   image->rows=rows;
-  if ((image->depth == 0) || (image->depth > (8*sizeof(MagickSizeType))))
-    ThrowBinaryException(ImageError,"ImageDepthNotSupported",image->filename);
+  if (image->depth == 0)
+    {
+      image->depth=8;
+      (void) ThrowMagickException(exception,GetMagickModule(),ImageError,
+        "ImageDepthNotSupported","`%s'",image->filename);
+    }
+  if (image->depth > (8*sizeof(MagickSizeType)))
+    {
+      image->depth=8*sizeof(MagickSizeType);
+      (void) ThrowMagickException(exception,GetMagickModule(),ImageError,
+        "ImageDepthNotSupported","`%s'",image->filename);
+    }
   return(SyncImagePixelCache(image,exception));
 }