Denial Of Service (DoS)

tomcat-coyote/tomcat-embed-core is vulnerable to denial of service. The HTTP/2 implementation did not timeout idling streams and allow them to be kept open without any read/write and request/response data. A remote attacker is able to exploit the vulnerability to keep an excessive number of open streams using requests that utilized the API’s blocking I/O, causing system resources to run out and the application crashes eventually.