Apache Tomcat 8.5.x < 8.5.41 DoS Vulnerability

The version of Tomcat installed on the remote host is prior to 8.5.41. It is, therefore, affected by a vulnerability as referenced in the fixed_in_apache_tomcat_8.5.41_security-8 advisory.

• The fix for CVE-2019-0199 was incomplete and did not address HTTP/2 connection window exhaustion on write. 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. (CVE-2019-10072)

Note that Nessus Network Monitor has not tested for this issue but has instead relied only on the application’s self-reported version number.