static void cgi_php_import_environment_variables(zval *array_ptr TSRMLS_DC)
{
	if (PG(http_globals)[TRACK_VARS_ENV] &&
		array_ptr != PG(http_globals)[TRACK_VARS_ENV] &&
		Z_TYPE_P(PG(http_globals)[TRACK_VARS_ENV]) == IS_ARRAY &&
		zend_hash_num_elements(Z_ARRVAL_P(PG(http_globals)[TRACK_VARS_ENV])) > 0
	) {
		zval_dtor(array_ptr);
		*array_ptr = *PG(http_globals)[TRACK_VARS_ENV];
		INIT_PZVAL(array_ptr);
		zval_copy_ctor(array_ptr);
		return;
	} else if (PG(http_globals)[TRACK_VARS_SERVER] &&
		array_ptr != PG(http_globals)[TRACK_VARS_SERVER] &&
		Z_TYPE_P(PG(http_globals)[TRACK_VARS_SERVER]) == IS_ARRAY &&
		zend_hash_num_elements(Z_ARRVAL_P(PG(http_globals)[TRACK_VARS_SERVER])) > 0
	) {
		zval_dtor(array_ptr);
		*array_ptr = *PG(http_globals)[TRACK_VARS_SERVER];
		INIT_PZVAL(array_ptr);
		zval_copy_ctor(array_ptr);
		return;
	}

	/* call php's original import as a catch-all */
	php_php_import_environment_variables(array_ptr TSRMLS_CC);

	if (fcgi_is_fastcgi()) {
		fcgi_request *request = (fcgi_request*) SG(server_context);
		fcgi_loadenv(request, cgi_php_load_env_var, array_ptr TSRMLS_CC);
	}
}

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.