Post any defects you find in the released or beta versions of the ImageMagick software here. Include the ImageMagick version, OS, and any command-line required to reproduce the problem. Got a patch for a bug? Post it here.
ImageMagick does have sanity checks to help reduce resource consumption. Its likely the check for bezier coordinates may be too aggressive. Look for a fix in the next Beta release of ImageMagick within a day or two.