static Image *ReadHALDImage(const ImageInfo *image_info,
  ExceptionInfo *exception)
{
  Image
    *image;

  MagickBooleanType
    status;

  size_t
    cube_size,
    level;

  ssize_t
    y;

  /*
    Create HALD color lookup table image.
  */
  assert(image_info != (const ImageInfo *) NULL);
  assert(image_info->signature == MagickSignature);
  if (image_info->debug != MagickFalse)
    (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",
      image_info->filename);
  assert(exception != (ExceptionInfo *) NULL);
  assert(exception->signature == MagickSignature);
  image=AcquireImage(image_info);
  level=0;
  if (*image_info->filename != '\0')
    level=StringToUnsignedLong(image_info->filename);
  if (level < 2)
    level=8;
  status=MagickTrue;
   cube_size=level*level;
   image->columns=(size_t) (level*cube_size);
   image->rows=(size_t) (level*cube_size);
  status=SetImageExtent(image,image->columns,image->rows);
  if (status == MagickFalse)
    {
      InheritException(exception,&image->exception);
      return(DestroyImageList(image));
    }
   for (y=0; y < (ssize_t) image->rows; y+=(ssize_t) level)
   {
     ssize_t
      blue,
      green,
      red;

    register PixelPacket
      *restrict q;
 
     if (status == MagickFalse)
       continue;
    q=QueueAuthenticPixels(image,0,y,image->columns,(size_t) level,exception);
     if (q == (PixelPacket *) NULL)
       {
         status=MagickFalse;
        continue;
      }
    blue=y/(ssize_t) level;
    for (green=0; green < (ssize_t) cube_size; green++)
    {
      for (red=0; red < (ssize_t) cube_size; red++)
      {
        SetPixelRed(q,ClampToQuantum((MagickRealType)
          (QuantumRange*red/(cube_size-1.0))));
        SetPixelGreen(q,ClampToQuantum((MagickRealType)
          (QuantumRange*green/(cube_size-1.0))));
        SetPixelBlue(q,ClampToQuantum((MagickRealType)
          (QuantumRange*blue/(cube_size-1.0))));
        SetPixelOpacity(q,OpaqueOpacity);
        q++;
      }
    }
    if (SyncAuthenticPixels(image,exception) == MagickFalse)
      status=MagickFalse;
  }
  return(GetFirstImageInList(image));
}

The product performs operations on a memory buffer, but it reads from or writes to a memory location outside the buffer's intended boundary. This may result in read or write operations on unexpected memory locations that could be linked to other variables, data structures, or internal program data.