A vulnerability classified as problematic has been found in PHP up to 5.5.33/5.6.19/7.0.4. Affected is the function php_raw_url_encode of the file ext/standard/url.c of the component rawurlencode Handler. The manipulation leads to denial of service.

This vulnerability is traded as CVE-2016-4070. It is possible to launch the attack remotely. There is no exploit available.

The real existence of this vulnerability is still doubted at the moment.

It is recommended to upgrade the affected component.