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.
lists.opensuse.org/opensuse-updates/2016-08/msg00003.html
rhn.redhat.com/errata/RHSA-2016-1609.html
rhn.redhat.com/errata/RHSA-2016-1610.html
rhn.redhat.com/errata/RHSA-2016-1611.html
rhn.redhat.com/errata/RHSA-2016-1612.html
rhn.redhat.com/errata/RHSA-2016-1613.html
www.debian.org/security/2016/dsa-3631
www.kb.cert.org/vuls/id/797896
www.oracle.com/technetwork/security-advisory/cpujan2018-3236628.html
www.oracle.com/technetwork/security-advisory/cpujul2017-3236622.html
www.oracle.com/technetwork/topics/security/linuxbulletinjul2016-3090544.html
www.securityfocus.com/bid/91821
www.securitytracker.com/id/1036335
bugzilla.redhat.com/show_bug.cgi?id=1353794
github.com/guzzle/guzzle/releases/tag/6.2.1
h20566.www2.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbhf03770en_us
h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05320149
h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05333297
h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05390722
httpoxy.org/
lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/7RMYXAVNYL2MOBJTFATE73TOVOEZYC5R/
lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/GXFEIMZPSVGZQQAYIQ7U7DFVX3IBSDLF/
lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/KZOIUYZDBWNDDHC6XTOLZYRMRXZWTJCP/
security.gentoo.org/glsa/201611-22
www.drupal.org/SA-CORE-2016-003