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VuXML IDDescription
6a72eff7-ccd6-11ea-9172-4c72b94353b5Apache Tomcat -- Multiple Vulnerabilities

The Apache Software Foundation reports:

An h2c direct connection did not release the HTTP/1.1 processor after the upgrade to HTTP/2. If a sufficient number of such requests were made, an OutOfMemoryException could occur leading to a denial of service.

The payload length in a WebSocket frame was not correctly validated. Invalid payload lengths could trigger an infinite loop. Multiple requests with invalid payload lengths could lead to a denial of service.

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.


Discovery 2020-07-05
Entry 2020-07-23
Modified 2020-07-23
tomcat7
< 7.0.105

tomcat85
< 8.5.57

tomcat9
< 9.0.37

tomcat-devel
< 10.0.0.M7

https://tomcat.apache.org/security-7.html
https://tomcat.apache.org/security-8.html
https://tomcat.apache.org/security-9.html
https://tomcat.apache.org/security-10.html
CVE-2020-11996
CVE-2020-13934
CVE-2020-13935