GHSA-mg7h-9qfx-4r83 ZendFramework Potential Proxy Injection Vulnerabilities

• Packagist zendframework/zendframework: >= 2.0.0, < 2.0.5 → fixed in 2.0.5

`Zend\Session\Validator\RemoteAddr` and `Zend\View\Helper\ServerUrl` were found to be improperly parsing HTTP headers for proxy information, which could potentially allow an attacker to spoof a proxied IP or host name. In `Zend\Session\Validator\RemoteAddr`, if the client is behind a proxy server, the detection of the proxy URL was incorrect, and could lead to invalid results on subsequent lookups. In `Zend\View\Helper\ServerUrl`, if the server lives behind a proxy, the helper would always generate a URL based on the proxy host, regardless of whether or not this was desired; additionally, it did not take into account the proxy port or protocol, if provided.