{"id":"UBUNTU-CVE-2013-4366","details":"http/impl/client/HttpClientBuilder.java in Apache HttpClient 4.3.x before 4.3.1 does not ensure that X509HostnameVerifier is not null, which allows attackers to have unspecified impact via vectors involving hostname verification.","modified":"2025-07-16T07:31:21.551822Z","published":"2017-10-30T19:29:00Z","withdrawn":"2025-07-18T16:42:55Z","upstream":["CVE-2013-4366"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2013-4366"},{"type":"REPORT","url":"http://svn.apache.org/r1528614"},{"type":"REPORT","url":"http://www.apache.org/dist/httpcomponents/httpclient/RELEASE_NOTES-4.3.x.txt"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2013-4366"}],"affected":[{"package":{"name":"httpcomponents-client","ecosystem":"Ubuntu:14.04:LTS","purl":"pkg:deb/ubuntu/httpcomponents-client@4.3.3-1?arch=source&distro=trusty"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.3.3-1"}]}],"versions":["4.2.5-2","4.3.2-1"],"ecosystem_specific":{"availability":"No subscription required","binaries":[{"binary_name":"libhttpclient-java","binary_version":"4.3.3-1"},{"binary_name":"libhttpmime-java","binary_version":"4.3.3-1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2013/UBUNTU-CVE-2013-4366.json"}},{"package":{"name":"httpcomponents-client","ecosystem":"Ubuntu:16.04:LTS","purl":"pkg:deb/ubuntu/httpcomponents-client@4.5.1-1?arch=source&distro=xenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.5.1-1"}]}],"versions":["4.4.1-1"],"ecosystem_specific":{"availability":"No subscription required","binaries":[{"binary_version":"4.5.1-1","binary_name":"libhttpclient-java"},{"binary_name":"libhttpmime-java","binary_version":"4.5.1-1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2013/UBUNTU-CVE-2013-4366.json"}}],"schema_version":"1.7.3","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"},{"type":"CVSS_V3","score":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"},{"type":"Ubuntu","score":"medium"}]}