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{"acknowledgement": "Red Hat would like to thank Scott Geary (VendHQ) for reporting this issue.", "affected_release": [{"advisory": "RHSA-2016:1538", "cpe": "cpe:/o:redhat:enterprise_linux:7", "package": "golang-0:1.6.3-1.el7_2.1", "product_name": "Red Hat Enterprise Linux 7", "release_date": "2016-08-02T00:00:00Z"}], "bugzilla": {"description": "Go: sets environmental variable based on user supplied Proxy request header", "id": "1353798", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1353798"}, "csaw": false, "cvss": {"cvss_base_score": "5.0", "cvss_scoring_vector": "AV:N/AC:L/Au:N/C:N/I:P/A:N", "status": "verified"}, "cvss3": {"cvss3_base_score": "5.0", "cvss3_scoring_vector": "CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:L/A:N", "status": "verified"}, "cwe": "CWE-20", "details": ["The net/http package in Go through 1.6 does not attempt to address RFC 3875 section 4.1.18 namespace conflicts and therefore does not protect CGI applications from the presence of untrusted client data in the HTTP_PROXY environment variable, which might allow remote attackers to redirect a CGI application's outbound HTTP traffic to an arbitrary proxy server via a crafted Proxy header in an HTTP request, aka an \"httpoxy\" issue.", "An input-validation flaw was discovered in the Go programming language built in CGI implementation, which set the environment variable \"HTTP_PROXY\" using the incoming \"Proxy\" HTTP-request header. The environment variable \"HTTP_PROXY\" is used by numerous web clients, including Go's net/http package, to specify a proxy server to use for HTTP and, in some cases, HTTPS requests. This meant that when a CGI-based web application ran, an attacker could specify a proxy server which the application then used for subsequent outgoing requests, allowing a man-in-the-middle attack."], "name": "CVE-2016-5386", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "compat-sap-c++-5", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "gcc", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "gcc-libraries", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/a:redhat:openstack-optools:7", "fix_state": "Will not fix", "package_name": "golang", "product_name": "Red Hat Enterprise Linux OpenStack Platform 7 (Kilo) Operational Tools"}, {"cpe": "cpe:/a:redhat:openshift:3", "fix_state": "Affected", "package_name": "golang", "product_name": "Red Hat OpenShift Enterprise 3"}, {"cpe": "cpe:/a:redhat:openstack-optools:8", "fix_state": "Will not fix", "package_name": "golang", "product_name": "Red Hat OpenStack Platform 8 (Liberty) Operational Tools"}, {"cpe": "cpe:/a:redhat:openstack-optools:9", "fix_state": "Not affected", "package_name": "golang", "product_name": "Red Hat OpenStack Platform 9 (Mitaka) Operational Tools"}], "public_date": "2016-07-18T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2016-5386\nhttps://nvd.nist.gov/vuln/detail/CVE-2016-5386"], "threat_severity": "Moderate", "upstream_fix": "Go 1.6.3, Go 1.7rc2"}