{"id":"UBUNTU-CVE-2016-6816","details":"The code in Apache Tomcat 9.0.0.M1 to 9.0.0.M11, 8.5.0 to 8.5.6, 8.0.0.RC1 to 8.0.38, 7.0.0 to 7.0.72, and 6.0.0 to 6.0.47 that parsed the HTTP request line permitted invalid characters. This could be exploited, in conjunction with a proxy that also permitted the invalid characters but with a different interpretation, to inject data into the HTTP response. By manipulating the HTTP response the attacker could poison a web-cache, perform an XSS attack and/or obtain sensitive information from requests other then their own.","modified":"2026-02-04T04:12:31.601437Z","published":"2016-11-23T00:00:00Z","related":["USN-3177-1","USN-4557-1"],"upstream":["CVE-2016-6816"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2016-6816"},{"type":"REPORT","url":"http://www.openwall.com/lists/oss-security/2016/11/22/17"},{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-3177-1"},{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-4557-1"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2016-6816"}],"affected":[{"package":{"name":"tomcat7","ecosystem":"Ubuntu:14.04:LTS","purl":"pkg:deb/ubuntu/tomcat7@7.0.52-1ubuntu0.8?arch=source&distro=trusty"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"7.0.52-1ubuntu0.8"}]}],"versions":["7.0.42-1","7.0.47-1","7.0.50-1","7.0.52-1","7.0.52-1ubuntu0.1","7.0.52-1ubuntu0.3","7.0.52-1ubuntu0.6","7.0.52-1ubuntu0.7"],"ecosystem_specific":{"binaries":[{"binary_version":"7.0.52-1ubuntu0.8","binary_name":"libservlet3.0-java"},{"binary_version":"7.0.52-1ubuntu0.8","binary_name":"libtomcat7-java"},{"binary_version":"7.0.52-1ubuntu0.8","binary_name":"tomcat7"},{"binary_version":"7.0.52-1ubuntu0.8","binary_name":"tomcat7-admin"},{"binary_version":"7.0.52-1ubuntu0.8","binary_name":"tomcat7-common"},{"binary_version":"7.0.52-1ubuntu0.8","binary_name":"tomcat7-docs"},{"binary_version":"7.0.52-1ubuntu0.8","binary_name":"tomcat7-examples"},{"binary_version":"7.0.52-1ubuntu0.8","binary_name":"tomcat7-user"}],"availability":"No subscription required"},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2016/UBUNTU-CVE-2016-6816.json"}},{"package":{"name":"tomcat6","ecosystem":"Ubuntu:Pro:14.04:LTS","purl":"pkg:deb/ubuntu/tomcat6@6.0.39-1ubuntu0.1+esm2?arch=source&distro=esm-infra-legacy/trusty"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["6.0.37-1","6.0.39-1","6.0.39-1ubuntu0.1","6.0.39-1ubuntu0.1+esm1","6.0.39-1ubuntu0.1+esm2"],"ecosystem_specific":{"binaries":[{"binary_version":"6.0.39-1ubuntu0.1+esm2","binary_name":"libservlet2.4-java"},{"binary_version":"6.0.39-1ubuntu0.1+esm2","binary_name":"libservlet2.5-java"},{"binary_version":"6.0.39-1ubuntu0.1+esm2","binary_name":"libtomcat6-java"},{"binary_version":"6.0.39-1ubuntu0.1+esm2","binary_name":"tomcat6"},{"binary_version":"6.0.39-1ubuntu0.1+esm2","binary_name":"tomcat6-admin"},{"binary_version":"6.0.39-1ubuntu0.1+esm2","binary_name":"tomcat6-common"},{"binary_version":"6.0.39-1ubuntu0.1+esm2","binary_name":"tomcat6-docs"},{"binary_version":"6.0.39-1ubuntu0.1+esm2","binary_name":"tomcat6-examples"},{"binary_version":"6.0.39-1ubuntu0.1+esm2","binary_name":"tomcat6-extras"},{"binary_version":"6.0.39-1ubuntu0.1+esm2","binary_name":"tomcat6-user"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2016/UBUNTU-CVE-2016-6816.json"}},{"package":{"name":"tomcat6","ecosystem":"Ubuntu:16.04:LTS","purl":"pkg:deb/ubuntu/tomcat6@6.0.45+dfsg-1ubuntu0.1?arch=source&distro=xenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"6.0.45+dfsg-1ubuntu0.1"}]}],"versions":["6.0.41-4","6.0.45+dfsg-1"],"ecosystem_specific":{"binaries":[{"binary_version":"6.0.45+dfsg-1ubuntu0.1","binary_name":"libservlet2.5-java"}],"availability":"No subscription required"},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2016/UBUNTU-CVE-2016-6816.json"}},{"package":{"name":"tomcat7","ecosystem":"Ubuntu:16.04:LTS","purl":"pkg:deb/ubuntu/tomcat7@7.0.68-1ubuntu0.3?arch=source&distro=xenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"7.0.68-1ubuntu0.3"}]}],"versions":["7.0.64-1","7.0.68-1","7.0.68-1ubuntu0.1"],"ecosystem_specific":{"binaries":[{"binary_version":"7.0.68-1ubuntu0.3","binary_name":"libservlet3.0-java"},{"binary_version":"7.0.68-1ubuntu0.3","binary_name":"libtomcat7-java"},{"binary_version":"7.0.68-1ubuntu0.3","binary_name":"tomcat7"},{"binary_version":"7.0.68-1ubuntu0.3","binary_name":"tomcat7-admin"},{"binary_version":"7.0.68-1ubuntu0.3","binary_name":"tomcat7-common"},{"binary_version":"7.0.68-1ubuntu0.3","binary_name":"tomcat7-docs"},{"binary_version":"7.0.68-1ubuntu0.3","binary_name":"tomcat7-examples"},{"binary_version":"7.0.68-1ubuntu0.3","binary_name":"tomcat7-user"}],"availability":"No subscription required"},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2016/UBUNTU-CVE-2016-6816.json"}},{"package":{"name":"tomcat8","ecosystem":"Ubuntu:16.04:LTS","purl":"pkg:deb/ubuntu/tomcat8@8.0.32-1ubuntu1.3?arch=source&distro=xenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"8.0.32-1ubuntu1.3"}]}],"versions":["8.0.26-1","8.0.28-1","8.0.30-1","8.0.32-1","8.0.32-1ubuntu1","8.0.32-1ubuntu1.1","8.0.32-1ubuntu1.2"],"ecosystem_specific":{"binaries":[{"binary_version":"8.0.32-1ubuntu1.3","binary_name":"libservlet3.1-java"},{"binary_version":"8.0.32-1ubuntu1.3","binary_name":"libtomcat8-java"},{"binary_version":"8.0.32-1ubuntu1.3","binary_name":"tomcat8"},{"binary_version":"8.0.32-1ubuntu1.3","binary_name":"tomcat8-admin"},{"binary_version":"8.0.32-1ubuntu1.3","binary_name":"tomcat8-common"},{"binary_version":"8.0.32-1ubuntu1.3","binary_name":"tomcat8-docs"},{"binary_version":"8.0.32-1ubuntu1.3","binary_name":"tomcat8-examples"},{"binary_version":"8.0.32-1ubuntu1.3","binary_name":"tomcat8-user"}],"availability":"No subscription required"},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2016/UBUNTU-CVE-2016-6816.json"}}],"schema_version":"1.7.3","severity":[{"type":"CVSS_V3","score":"CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L"},{"type":"Ubuntu","score":"medium"}]}