MagickExport MagickBooleanType ModuleComponentGenesis(void)
{
  ExceptionInfo
    *exception;

  MagickBooleanType
    status;

  if (module_semaphore == (SemaphoreInfo *) NULL)
    module_semaphore=AllocateSemaphoreInfo();
  exception=AcquireExceptionInfo();
  status=IsModuleTreeInstantiated(exception);
  exception=DestroyExceptionInfo(exception);
  return(status);
}

The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory.