{"id":"UBUNTU-CVE-2013-4286","details":"Apache Tomcat before 6.0.39, 7.x before 7.0.47, and 8.x before 8.0.0-RC3, when an HTTP connector or AJP connector is used, does not properly handle certain inconsistent HTTP request headers, which allows remote attackers to trigger incorrect identification of a request's length and conduct request-smuggling attacks via (1) multiple Content-Length headers or (2) a Content-Length header and a \"Transfer-Encoding: chunked\" header.  NOTE: this vulnerability exists because of an incomplete fix for CVE-2005-2090.","modified":"2026-02-04T03:33:42.090346Z","published":"2014-02-26T00:00:00Z","withdrawn":"2025-07-18T16:42:54Z","related":["USN-2130-1"],"upstream":["CVE-2013-4286"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2013-4286"},{"type":"REPORT","url":"http://tomcat.apache.org/security-8.html"},{"type":"REPORT","url":"http://tomcat.apache.org/security-7.html"},{"type":"REPORT","url":"http://tomcat.apache.org/security-6.html"},{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-2130-1"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2013-4286"}],"affected":[{"package":{"name":"tomcat6","ecosystem":"Ubuntu:14.04:LTS","purl":"pkg:deb/ubuntu/tomcat6@6.0.39-1?arch=source&distro=trusty"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"6.0.39-1"}]}],"versions":["6.0.37-1"],"ecosystem_specific":{"availability":"No subscription required","binaries":[{"binary_version":"6.0.39-1","binary_name":"libservlet2.4-java"},{"binary_version":"6.0.39-1","binary_name":"libservlet2.5-java"},{"binary_version":"6.0.39-1","binary_name":"libservlet2.5-java-doc"},{"binary_version":"6.0.39-1","binary_name":"libtomcat6-java"},{"binary_version":"6.0.39-1","binary_name":"tomcat6"},{"binary_version":"6.0.39-1","binary_name":"tomcat6-admin"},{"binary_version":"6.0.39-1","binary_name":"tomcat6-common"},{"binary_version":"6.0.39-1","binary_name":"tomcat6-docs"},{"binary_version":"6.0.39-1","binary_name":"tomcat6-examples"},{"binary_version":"6.0.39-1","binary_name":"tomcat6-extras"},{"binary_version":"6.0.39-1","binary_name":"tomcat6-user"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2013/UBUNTU-CVE-2013-4286.json"}},{"package":{"name":"tomcat7","ecosystem":"Ubuntu:14.04:LTS","purl":"pkg:deb/ubuntu/tomcat7@7.0.52-1?arch=source&distro=trusty"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"7.0.52-1"}]}],"versions":["7.0.42-1","7.0.47-1","7.0.50-1"],"ecosystem_specific":{"availability":"No subscription required","binaries":[{"binary_version":"7.0.52-1","binary_name":"libservlet3.0-java"},{"binary_version":"7.0.52-1","binary_name":"libservlet3.0-java-doc"},{"binary_version":"7.0.52-1","binary_name":"libtomcat7-java"},{"binary_version":"7.0.52-1","binary_name":"tomcat7"},{"binary_version":"7.0.52-1","binary_name":"tomcat7-admin"},{"binary_version":"7.0.52-1","binary_name":"tomcat7-common"},{"binary_version":"7.0.52-1","binary_name":"tomcat7-docs"},{"binary_version":"7.0.52-1","binary_name":"tomcat7-examples"},{"binary_version":"7.0.52-1","binary_name":"tomcat7-user"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2013/UBUNTU-CVE-2013-4286.json"}}],"schema_version":"1.7.3","severity":[{"type":"Ubuntu","score":"medium"}]}