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VID 22945
Severity 30
Port 80, ...
Protocol TCP
Class WWW
Detailed Description The version of Tomcat installed on the remote host is prior to 9.0.36. It is, therefore, affected by a vulnerability as referenced in the fixed_in_apache_tomcat_9.0.36_security-9 advisory.

- A specially crafted sequence of HTTP/2 requests could trigger high CPU usage for several seconds. If a sufficient number of such requests were made on concurrent HTTP/2 connections, the server could become unresponsive. (CVE-2020-11996)

* References:
https://github.com/apache/tomcat/commit/9a0231683a77e2957cea0fdee88b193b30b0c976
https://tomcat.apache.org/security-9.html#Fixed_in_Apache_Tomcat_9.0.36

* Platforms Affected:
Apache Tomcat Server versions 9.0.x prior to 9.0.36
Any operating system Any version
Recommendation Upgrade to the latest version of Apache Tomcat Server (9.0.36 or later), available from the Apache Software Foundation download site, http://tomcat.apache.org/
Related URL CVE-2020-11996 (CVE)
Related URL (SecurityFocus)
Related URL (ISS)