If Apache Tomcat 8.5.0 to 8.5.82, 9.0.0-M1 to 9.0.67, 10.0.0-M1 to 10.0.26 or 10.1.0-M1 to 10.1.0 was configured to ignore invalid HTTP headers via setting rejectIllegalHeader to false (the default for 8.5.x only), Tomcat did not reject a request containing an invalid Content-Length header making a request smuggling attack possible if Tomcat was located behind a reverse proxy that also failed to reject the request with the invalid header.
{ "availability": "Available with Ubuntu Pro: https://ubuntu.com/pro", "ubuntu_priority": "medium", "binaries": [ { "tomcat8-common": "8.5.39-1ubuntu1~18.04.3+esm1", "tomcat8-admin": "8.5.39-1ubuntu1~18.04.3+esm1", "tomcat8-user": "8.5.39-1ubuntu1~18.04.3+esm1", "libtomcat8-java": "8.5.39-1ubuntu1~18.04.3+esm1", "tomcat8": "8.5.39-1ubuntu1~18.04.3+esm1", "tomcat8-examples": "8.5.39-1ubuntu1~18.04.3+esm1", "libtomcat8-embed-java": "8.5.39-1ubuntu1~18.04.3+esm1", "tomcat8-docs": "8.5.39-1ubuntu1~18.04.3+esm1" } ] }
{ "availability": "Available with Ubuntu Pro: https://ubuntu.com/pro", "ubuntu_priority": "medium", "binaries": [ { "tomcat9": "9.0.16-3ubuntu0.18.04.2+esm1", "tomcat9-user": "9.0.16-3ubuntu0.18.04.2+esm1", "libtomcat9-embed-java": "9.0.16-3ubuntu0.18.04.2+esm1", "tomcat9-docs": "9.0.16-3ubuntu0.18.04.2+esm1", "libtomcat9-java": "9.0.16-3ubuntu0.18.04.2+esm1", "tomcat9-examples": "9.0.16-3ubuntu0.18.04.2+esm1", "tomcat9-common": "9.0.16-3ubuntu0.18.04.2+esm1", "tomcat9-admin": "9.0.16-3ubuntu0.18.04.2+esm1" } ] }
{ "availability": "No subscription required", "ubuntu_priority": "medium", "binaries": [ { "tomcat9": "9.0.31-1ubuntu0.5", "tomcat9-user": "9.0.31-1ubuntu0.5", "libtomcat9-embed-java": "9.0.31-1ubuntu0.5", "tomcat9-docs": "9.0.31-1ubuntu0.5", "libtomcat9-java": "9.0.31-1ubuntu0.5", "tomcat9-examples": "9.0.31-1ubuntu0.5", "tomcat9-common": "9.0.31-1ubuntu0.5", "tomcat9-admin": "9.0.31-1ubuntu0.5" } ] }
{ "availability": "Available with Ubuntu Pro: https://ubuntu.com/pro", "ubuntu_priority": "medium", "binaries": [ { "tomcat9": "9.0.58-1ubuntu0.1+esm1", "tomcat9-user": "9.0.58-1ubuntu0.1+esm1", "libtomcat9-embed-java": "9.0.58-1ubuntu0.1+esm1", "tomcat9-docs": "9.0.58-1ubuntu0.1+esm1", "libtomcat9-java": "9.0.58-1ubuntu0.1+esm1", "tomcat9-examples": "9.0.58-1ubuntu0.1+esm1", "tomcat9-common": "9.0.58-1ubuntu0.1+esm1", "tomcat9-admin": "9.0.58-1ubuntu0.1+esm1" } ] }