CVE-2016-5385 – PHP: sets environmental variable based on user supplied Proxy request header

https://notcve.org/view.php?id=CVE-2016-5385

19 Jul 2016 — PHP through 7.0.8 does not attempt to address RFC 3875 section 4.1.18 namespace conflicts and therefore does not protect applications from the presence of untrusted client data in the HTTP_PROXY environment variable, which might allow remote attackers to redirect an application's outbound HTTP traffic to an arbitrary proxy server via a crafted Proxy header in an HTTP request, as demonstrated by (1) an application that makes a getenv('HTTP_PROXY') call or (2) a CGI configuration of PHP, aka an "httpoxy" issu... • http://lists.opensuse.org/opensuse-updates/2016-08/msg00003.html • CWE-20: Improper Input Validation CWE-601: URL Redirection to Untrusted Site ('Open Redirect') •