{"id":"UBUNTU-CVE-2018-1336","details":"An improper handing of overflow in the UTF-8 decoder with supplementary characters can lead to an infinite loop in the decoder causing a Denial of Service. Versions Affected: Apache Tomcat 9.0.0.M9 to 9.0.7, 8.5.0 to 8.5.30, 8.0.0.RC1 to 8.0.51, and 7.0.28 to 7.0.86.","modified":"2026-01-30T02:26:14.936218Z","published":"2018-07-24T00:00:00Z","related":["USN-3723-1","USN-4791-1"],"upstream":["CVE-2018-1336"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2018-1336"},{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-3723-1"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2018-1336"},{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-4791-1"}],"affected":[{"package":{"name":"tomcat7","ecosystem":"Ubuntu:14.04:LTS","purl":"pkg:deb/ubuntu/tomcat7@7.0.52-1ubuntu0.15?arch=source&distro=trusty"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"7.0.52-1ubuntu0.15"}]}],"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","7.0.52-1ubuntu0.8","7.0.52-1ubuntu0.9","7.0.52-1ubuntu0.10","7.0.52-1ubuntu0.11","7.0.52-1ubuntu0.13","7.0.52-1ubuntu0.14"],"ecosystem_specific":{"binaries":[{"binary_version":"7.0.52-1ubuntu0.15","binary_name":"libservlet3.0-java"},{"binary_version":"7.0.52-1ubuntu0.15","binary_name":"libtomcat7-java"},{"binary_version":"7.0.52-1ubuntu0.15","binary_name":"tomcat7"},{"binary_version":"7.0.52-1ubuntu0.15","binary_name":"tomcat7-admin"},{"binary_version":"7.0.52-1ubuntu0.15","binary_name":"tomcat7-common"},{"binary_version":"7.0.52-1ubuntu0.15","binary_name":"tomcat7-docs"},{"binary_version":"7.0.52-1ubuntu0.15","binary_name":"tomcat7-examples"},{"binary_version":"7.0.52-1ubuntu0.15","binary_name":"tomcat7-user"}],"availability":"No subscription required"},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2018/UBUNTU-CVE-2018-1336.json"}},{"package":{"name":"tomcat8","ecosystem":"Ubuntu:16.04:LTS","purl":"pkg:deb/ubuntu/tomcat8@8.0.32-1ubuntu1.7?arch=source&distro=xenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"8.0.32-1ubuntu1.7"}]}],"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","8.0.32-1ubuntu1.3","8.0.32-1ubuntu1.4","8.0.32-1ubuntu1.5","8.0.32-1ubuntu1.6"],"ecosystem_specific":{"binaries":[{"binary_version":"8.0.32-1ubuntu1.7","binary_name":"libservlet3.1-java"},{"binary_version":"8.0.32-1ubuntu1.7","binary_name":"libtomcat8-java"},{"binary_version":"8.0.32-1ubuntu1.7","binary_name":"tomcat8"},{"binary_version":"8.0.32-1ubuntu1.7","binary_name":"tomcat8-admin"},{"binary_version":"8.0.32-1ubuntu1.7","binary_name":"tomcat8-common"},{"binary_version":"8.0.32-1ubuntu1.7","binary_name":"tomcat8-docs"},{"binary_version":"8.0.32-1ubuntu1.7","binary_name":"tomcat8-examples"},{"binary_version":"8.0.32-1ubuntu1.7","binary_name":"tomcat8-user"}],"availability":"No subscription required"},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2018/UBUNTU-CVE-2018-1336.json"}},{"package":{"name":"tomcat7","ecosystem":"Ubuntu:Pro:16.04:LTS","purl":"pkg:deb/ubuntu/tomcat7@7.0.68-1ubuntu0.4+esm1?arch=source&distro=esm-apps/xenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"7.0.68-1ubuntu0.4+esm1"}]}],"versions":["7.0.64-1","7.0.68-1","7.0.68-1ubuntu0.1","7.0.68-1ubuntu0.3","7.0.68-1ubuntu0.4"],"ecosystem_specific":{"binaries":[{"binary_version":"7.0.68-1ubuntu0.4+esm1","binary_name":"libservlet3.0-java"},{"binary_version":"7.0.68-1ubuntu0.4+esm1","binary_name":"libtomcat7-java"},{"binary_version":"7.0.68-1ubuntu0.4+esm1","binary_name":"tomcat7"},{"binary_version":"7.0.68-1ubuntu0.4+esm1","binary_name":"tomcat7-admin"},{"binary_version":"7.0.68-1ubuntu0.4+esm1","binary_name":"tomcat7-common"},{"binary_version":"7.0.68-1ubuntu0.4+esm1","binary_name":"tomcat7-docs"},{"binary_version":"7.0.68-1ubuntu0.4+esm1","binary_name":"tomcat7-examples"},{"binary_version":"7.0.68-1ubuntu0.4+esm1","binary_name":"tomcat7-user"}],"availability":"Available with Ubuntu Pro: https://ubuntu.com/pro"},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2018/UBUNTU-CVE-2018-1336.json"}},{"package":{"name":"tomcat8","ecosystem":"Ubuntu:18.04:LTS","purl":"pkg:deb/ubuntu/tomcat8@8.5.39-1ubuntu1~18.04.1?arch=source&distro=bionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"8.5.39-1ubuntu1~18.04.1"}]}],"versions":["8.5.21-1ubuntu1","8.5.29-1","8.5.30-1","8.5.30-1ubuntu1","8.5.30-1ubuntu1.2","8.5.30-1ubuntu1.3","8.5.30-1ubuntu1.4"],"ecosystem_specific":{"binaries":[{"binary_version":"8.5.39-1ubuntu1~18.04.1","binary_name":"libtomcat8-embed-java"},{"binary_version":"8.5.39-1ubuntu1~18.04.1","binary_name":"libtomcat8-java"},{"binary_version":"8.5.39-1ubuntu1~18.04.1","binary_name":"tomcat8"},{"binary_version":"8.5.39-1ubuntu1~18.04.1","binary_name":"tomcat8-admin"},{"binary_version":"8.5.39-1ubuntu1~18.04.1","binary_name":"tomcat8-common"},{"binary_version":"8.5.39-1ubuntu1~18.04.1","binary_name":"tomcat8-docs"},{"binary_version":"8.5.39-1ubuntu1~18.04.1","binary_name":"tomcat8-examples"},{"binary_version":"8.5.39-1ubuntu1~18.04.1","binary_name":"tomcat8-user"}],"availability":"No subscription required"},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2018/UBUNTU-CVE-2018-1336.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:N/I:N/A:H"},{"type":"Ubuntu","score":"medium"}]}