{"id":"UBUNTU-CVE-2019-17563","details":"When using FORM authentication with Apache Tomcat 9.0.0.M1 to 9.0.29, 8.5.0 to 8.5.49 and 7.0.0 to 7.0.98 there was a narrow window where an attacker could perform a session fixation attack. The window was considered too narrow for an exploit to be practical but, erring on the side of caution, this issue has been treated as a security vulnerability.","modified":"2026-02-04T03:09:19.640204Z","published":"2019-12-23T17:15:00Z","related":["USN-4251-1"],"upstream":["CVE-2019-17563"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2019-17563"},{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-4251-1"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2019-17563"}],"affected":[{"package":{"name":"tomcat7","ecosystem":"Ubuntu:Pro:14.04:LTS","purl":"pkg:deb/ubuntu/tomcat7@7.0.52-1ubuntu0.16+esm1?arch=source&distro=esm-infra-legacy/trusty"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"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","7.0.52-1ubuntu0.15","7.0.52-1ubuntu0.16","7.0.52-1ubuntu0.16+esm1"],"ecosystem_specific":{"binaries":[{"binary_name":"libservlet3.0-java","binary_version":"7.0.52-1ubuntu0.16+esm1"},{"binary_name":"libtomcat7-java","binary_version":"7.0.52-1ubuntu0.16+esm1"},{"binary_name":"tomcat7","binary_version":"7.0.52-1ubuntu0.16+esm1"},{"binary_name":"tomcat7-admin","binary_version":"7.0.52-1ubuntu0.16+esm1"},{"binary_name":"tomcat7-common","binary_version":"7.0.52-1ubuntu0.16+esm1"},{"binary_name":"tomcat7-docs","binary_version":"7.0.52-1ubuntu0.16+esm1"},{"binary_name":"tomcat7-examples","binary_version":"7.0.52-1ubuntu0.16+esm1"},{"binary_name":"tomcat7-user","binary_version":"7.0.52-1ubuntu0.16+esm1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2019/UBUNTU-CVE-2019-17563.json"}},{"package":{"name":"tomcat8","ecosystem":"Ubuntu:16.04:LTS","purl":"pkg:deb/ubuntu/tomcat8@8.0.32-1ubuntu1.11?arch=source&distro=xenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"8.0.32-1ubuntu1.11"}]}],"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","8.0.32-1ubuntu1.7","8.0.32-1ubuntu1.8","8.0.32-1ubuntu1.9","8.0.32-1ubuntu1.10"],"ecosystem_specific":{"binaries":[{"binary_name":"libservlet3.1-java","binary_version":"8.0.32-1ubuntu1.11"},{"binary_name":"libtomcat8-java","binary_version":"8.0.32-1ubuntu1.11"},{"binary_name":"tomcat8","binary_version":"8.0.32-1ubuntu1.11"},{"binary_name":"tomcat8-admin","binary_version":"8.0.32-1ubuntu1.11"},{"binary_name":"tomcat8-common","binary_version":"8.0.32-1ubuntu1.11"},{"binary_name":"tomcat8-docs","binary_version":"8.0.32-1ubuntu1.11"},{"binary_name":"tomcat8-examples","binary_version":"8.0.32-1ubuntu1.11"},{"binary_name":"tomcat8-user","binary_version":"8.0.32-1ubuntu1.11"}],"availability":"No subscription required"},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2019/UBUNTU-CVE-2019-17563.json"}},{"package":{"name":"tomcat7","ecosystem":"Ubuntu:Pro:16.04:LTS","purl":"pkg:deb/ubuntu/tomcat7@7.0.68-1ubuntu0.4+esm3?arch=source&distro=esm-apps/xenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["7.0.64-1","7.0.68-1","7.0.68-1ubuntu0.1","7.0.68-1ubuntu0.3","7.0.68-1ubuntu0.4","7.0.68-1ubuntu0.4+esm1","7.0.68-1ubuntu0.4+esm2","7.0.68-1ubuntu0.4+esm3"],"ecosystem_specific":{"binaries":[{"binary_name":"libservlet3.0-java","binary_version":"7.0.68-1ubuntu0.4+esm3"},{"binary_name":"libtomcat7-java","binary_version":"7.0.68-1ubuntu0.4+esm3"},{"binary_name":"tomcat7","binary_version":"7.0.68-1ubuntu0.4+esm3"},{"binary_name":"tomcat7-admin","binary_version":"7.0.68-1ubuntu0.4+esm3"},{"binary_name":"tomcat7-common","binary_version":"7.0.68-1ubuntu0.4+esm3"},{"binary_name":"tomcat7-docs","binary_version":"7.0.68-1ubuntu0.4+esm3"},{"binary_name":"tomcat7-examples","binary_version":"7.0.68-1ubuntu0.4+esm3"},{"binary_name":"tomcat7-user","binary_version":"7.0.68-1ubuntu0.4+esm3"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2019/UBUNTU-CVE-2019-17563.json"}},{"package":{"name":"tomcat7","ecosystem":"Ubuntu:Pro:18.04:LTS","purl":"pkg:deb/ubuntu/tomcat7@7.0.78-1ubuntu0.1~esm1?arch=source&distro=esm-apps/bionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["7.0.78-1","7.0.78-1ubuntu0.1~esm1"],"ecosystem_specific":{"binaries":[{"binary_name":"libservlet3.0-java","binary_version":"7.0.78-1ubuntu0.1~esm1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2019/UBUNTU-CVE-2019-17563.json"}},{"package":{"name":"tomcat8","ecosystem":"Ubuntu:Pro:18.04:LTS","purl":"pkg:deb/ubuntu/tomcat8@8.5.39-1ubuntu1~18.04.3+esm5?arch=source&distro=esm-apps/bionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"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","8.5.39-1ubuntu1~18.04.1","8.5.39-1ubuntu1~18.04.2","8.5.39-1ubuntu1~18.04.3","8.5.39-1ubuntu1~18.04.3+esm1","8.5.39-1ubuntu1~18.04.3+esm2","8.5.39-1ubuntu1~18.04.3+esm3","8.5.39-1ubuntu1~18.04.3+esm4","8.5.39-1ubuntu1~18.04.3+esm5"],"ecosystem_specific":{"binaries":[{"binary_name":"libtomcat8-embed-java","binary_version":"8.5.39-1ubuntu1~18.04.3+esm5"},{"binary_name":"libtomcat8-java","binary_version":"8.5.39-1ubuntu1~18.04.3+esm5"},{"binary_name":"tomcat8","binary_version":"8.5.39-1ubuntu1~18.04.3+esm5"},{"binary_name":"tomcat8-admin","binary_version":"8.5.39-1ubuntu1~18.04.3+esm5"},{"binary_name":"tomcat8-common","binary_version":"8.5.39-1ubuntu1~18.04.3+esm5"},{"binary_name":"tomcat8-docs","binary_version":"8.5.39-1ubuntu1~18.04.3+esm5"},{"binary_name":"tomcat8-examples","binary_version":"8.5.39-1ubuntu1~18.04.3+esm5"},{"binary_name":"tomcat8-user","binary_version":"8.5.39-1ubuntu1~18.04.3+esm5"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2019/UBUNTU-CVE-2019-17563.json"}},{"package":{"name":"tomcat9","ecosystem":"Ubuntu:Pro:18.04:LTS","purl":"pkg:deb/ubuntu/tomcat9@9.0.16-3ubuntu0.18.04.2+esm7?arch=source&distro=esm-apps/bionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["9.0.16-3~18.04.1","9.0.16-3ubuntu0.18.04.1","9.0.16-3ubuntu0.18.04.2","9.0.16-3ubuntu0.18.04.2+esm1","9.0.16-3ubuntu0.18.04.2+esm2","9.0.16-3ubuntu0.18.04.2+esm3","9.0.16-3ubuntu0.18.04.2+esm4","9.0.16-3ubuntu0.18.04.2+esm5","9.0.16-3ubuntu0.18.04.2+esm6","9.0.16-3ubuntu0.18.04.2+esm7"],"ecosystem_specific":{"binaries":[{"binary_name":"libtomcat9-embed-java","binary_version":"9.0.16-3ubuntu0.18.04.2+esm7"},{"binary_name":"libtomcat9-java","binary_version":"9.0.16-3ubuntu0.18.04.2+esm7"},{"binary_name":"tomcat9","binary_version":"9.0.16-3ubuntu0.18.04.2+esm7"},{"binary_name":"tomcat9-admin","binary_version":"9.0.16-3ubuntu0.18.04.2+esm7"},{"binary_name":"tomcat9-common","binary_version":"9.0.16-3ubuntu0.18.04.2+esm7"},{"binary_name":"tomcat9-docs","binary_version":"9.0.16-3ubuntu0.18.04.2+esm7"},{"binary_name":"tomcat9-examples","binary_version":"9.0.16-3ubuntu0.18.04.2+esm7"},{"binary_name":"tomcat9-user","binary_version":"9.0.16-3ubuntu0.18.04.2+esm7"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2019/UBUNTU-CVE-2019-17563.json"}}],"schema_version":"1.7.3","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H"},{"type":"Ubuntu","score":"low"}]}