{"id":"UBUNTU-CVE-2016-5387","details":"The Apache HTTP Server through 2.4.23 follows RFC 3875 section 4.1.18 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, aka an \"httpoxy\" issue.  NOTE: the vendor states \"This mitigation has been assigned the identifier CVE-2016-5387\"; in other words, this is not a CVE ID for a vulnerability.","modified":"2026-01-30T01:20:56.232878Z","published":"2016-07-18T14:00:00Z","related":["USN-3038-1"],"upstream":["CVE-2016-5387"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2016-5387"},{"type":"REPORT","url":"https://httpoxy.org/"},{"type":"REPORT","url":"https://www.apache.org/security/asf-httpoxy-response.txt"},{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-3038-1"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2016-5387"}],"affected":[{"package":{"name":"apache2","ecosystem":"Ubuntu:14.04:LTS","purl":"pkg:deb/ubuntu/apache2@2.4.7-1ubuntu4.13?arch=source&distro=trusty"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.4.7-1ubuntu4.13"}]}],"versions":["2.4.6-2ubuntu2","2.4.6-2ubuntu3","2.4.6-2ubuntu4","2.4.7-1ubuntu1","2.4.7-1ubuntu2","2.4.7-1ubuntu3","2.4.7-1ubuntu4","2.4.7-1ubuntu4.1","2.4.7-1ubuntu4.4","2.4.7-1ubuntu4.5","2.4.7-1ubuntu4.6","2.4.7-1ubuntu4.7","2.4.7-1ubuntu4.8","2.4.7-1ubuntu4.9","2.4.7-1ubuntu4.10","2.4.7-1ubuntu4.11"],"ecosystem_specific":{"availability":"No subscription required","binaries":[{"binary_name":"apache2","binary_version":"2.4.7-1ubuntu4.13"},{"binary_name":"apache2-bin","binary_version":"2.4.7-1ubuntu4.13"},{"binary_name":"apache2-data","binary_version":"2.4.7-1ubuntu4.13"},{"binary_name":"apache2-dev","binary_version":"2.4.7-1ubuntu4.13"},{"binary_name":"apache2-mpm-event","binary_version":"2.4.7-1ubuntu4.13"},{"binary_name":"apache2-mpm-itk","binary_version":"2.4.7-1ubuntu4.13"},{"binary_name":"apache2-mpm-prefork","binary_version":"2.4.7-1ubuntu4.13"},{"binary_name":"apache2-mpm-worker","binary_version":"2.4.7-1ubuntu4.13"},{"binary_name":"apache2-suexec","binary_version":"2.4.7-1ubuntu4.13"},{"binary_name":"apache2-suexec-custom","binary_version":"2.4.7-1ubuntu4.13"},{"binary_name":"apache2-suexec-pristine","binary_version":"2.4.7-1ubuntu4.13"},{"binary_name":"apache2-utils","binary_version":"2.4.7-1ubuntu4.13"},{"binary_name":"apache2.2-bin","binary_version":"2.4.7-1ubuntu4.13"},{"binary_name":"libapache2-mod-macro","binary_version":"1:2.4.7-1ubuntu4.13"},{"binary_name":"libapache2-mod-proxy-html","binary_version":"1:2.4.7-1ubuntu4.13"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2016/UBUNTU-CVE-2016-5387.json"}},{"package":{"name":"apache2","ecosystem":"Ubuntu:16.04:LTS","purl":"pkg:deb/ubuntu/apache2@2.4.18-2ubuntu3.1?arch=source&distro=xenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.4.18-2ubuntu3.1"}]}],"versions":["2.4.12-2ubuntu2","2.4.17-1ubuntu1","2.4.17-2ubuntu1","2.4.17-3ubuntu1","2.4.18-1ubuntu1","2.4.18-2ubuntu1","2.4.18-2ubuntu2","2.4.18-2ubuntu3"],"ecosystem_specific":{"availability":"No subscription required","binaries":[{"binary_name":"apache2","binary_version":"2.4.18-2ubuntu3.1"},{"binary_name":"apache2-bin","binary_version":"2.4.18-2ubuntu3.1"},{"binary_name":"apache2-data","binary_version":"2.4.18-2ubuntu3.1"},{"binary_name":"apache2-dev","binary_version":"2.4.18-2ubuntu3.1"},{"binary_name":"apache2-suexec-custom","binary_version":"2.4.18-2ubuntu3.1"},{"binary_name":"apache2-suexec-pristine","binary_version":"2.4.18-2ubuntu3.1"},{"binary_name":"apache2-utils","binary_version":"2.4.18-2ubuntu3.1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2016/UBUNTU-CVE-2016-5387.json"}}],"schema_version":"1.7.3","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H"},{"type":"CVSS_V3","score":"CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H"},{"type":"Ubuntu","score":"medium"}]}