{"id":"UBUNTU-CVE-2019-10072","details":"The fix for CVE-2019-0199 was incomplete and did not address HTTP/2 connection window exhaustion on write in Apache Tomcat versions 9.0.0.M1 to 9.0.19 and 8.5.0 to 8.5.40 . By not sending WINDOW_UPDATE messages for the connection window (stream 0) clients were able to cause server-side threads to block eventually leading to thread exhaustion and a DoS.","modified":"2026-01-30T00:52:09.694739Z","published":"2019-06-21T00:00:00Z","related":["USN-4128-1","USN-4128-2"],"upstream":["CVE-2019-10072"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2019-10072"},{"type":"REPORT","url":"https://lists.apache.org/thread.html/df1a2c1b87c8a6c500ecdbbaf134c7f1491c8d79d98b48c6b9f0fa6a@%3Cannounce.tomcat.apache.org%3E"},{"type":"REPORT","url":"http://tomcat.apache.org/security-9.html#Fixed_in_Apache_Tomcat_9.0.20"},{"type":"REPORT","url":"http://tomcat.apache.org/security-8.html#Fixed_in_Apache_Tomcat_8.5.41"},{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-4128-1"},{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-4128-2"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2019-10072"}],"affected":[{"package":{"name":"tomcat8","ecosystem":"Ubuntu:18.04:LTS","purl":"pkg:deb/ubuntu/tomcat8@8.5.39-1ubuntu1~18.04.3?arch=source&distro=bionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"8.5.39-1ubuntu1~18.04.3"}]}],"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"],"ecosystem_specific":{"availability":"No subscription required","binaries":[{"binary_version":"8.5.39-1ubuntu1~18.04.3","binary_name":"libtomcat8-embed-java"},{"binary_version":"8.5.39-1ubuntu1~18.04.3","binary_name":"libtomcat8-java"},{"binary_version":"8.5.39-1ubuntu1~18.04.3","binary_name":"tomcat8"},{"binary_version":"8.5.39-1ubuntu1~18.04.3","binary_name":"tomcat8-admin"},{"binary_version":"8.5.39-1ubuntu1~18.04.3","binary_name":"tomcat8-common"},{"binary_version":"8.5.39-1ubuntu1~18.04.3","binary_name":"tomcat8-docs"},{"binary_version":"8.5.39-1ubuntu1~18.04.3","binary_name":"tomcat8-examples"},{"binary_version":"8.5.39-1ubuntu1~18.04.3","binary_name":"tomcat8-user"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2019/UBUNTU-CVE-2019-10072.json"}},{"package":{"name":"tomcat9","ecosystem":"Ubuntu:18.04:LTS","purl":"pkg:deb/ubuntu/tomcat9@9.0.16-3ubuntu0.18.04.1?arch=source&distro=bionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"9.0.16-3ubuntu0.18.04.1"}]}],"versions":["9.0.16-3~18.04.1"],"ecosystem_specific":{"availability":"No subscription required","binaries":[{"binary_version":"9.0.16-3ubuntu0.18.04.1","binary_name":"libtomcat9-embed-java"},{"binary_version":"9.0.16-3ubuntu0.18.04.1","binary_name":"libtomcat9-java"},{"binary_version":"9.0.16-3ubuntu0.18.04.1","binary_name":"tomcat9"},{"binary_version":"9.0.16-3ubuntu0.18.04.1","binary_name":"tomcat9-admin"},{"binary_version":"9.0.16-3ubuntu0.18.04.1","binary_name":"tomcat9-common"},{"binary_version":"9.0.16-3ubuntu0.18.04.1","binary_name":"tomcat9-docs"},{"binary_version":"9.0.16-3ubuntu0.18.04.1","binary_name":"tomcat9-examples"},{"binary_version":"9.0.16-3ubuntu0.18.04.1","binary_name":"tomcat9-user"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2019/UBUNTU-CVE-2019-10072.json"}}],"schema_version":"1.7.3","severity":[{"type":"CVSS_V3","score":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"},{"type":"Ubuntu","score":"medium"}]}