UBUNTU-CVE-2016-5385

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UBUNTU-CVE-2016-5385

Summary:

Details: 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" issue.

References: https://ubuntu.com/security/CVE-2016-5385, https://httpoxy.org/, http://php.net/ChangeLog-7.php#7.0.9, https://ubuntu.com/security/notices/USN-3045-1, https://www.cve.org/CVERecord?id=CVE-2016-5385