CVE-2020-11996 log

Source
Severity Medium
Remote Yes
Type Denial of service
Description
A denial of service has been found in Apache Tomcat before 9.0.36 and 8.5.56, where 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.
Group Package Affected Fixed Severity Status Ticket
AVG-1197 tomcat8 8.5.55-1 8.5.56-1 Medium Fixed
AVG-1196 tomcat9 9.0.35-1 9.0.37-1 Medium Fixed
Date Advisory Group Package Severity Description
28 Jun 2020 ASA-202006-16 AVG-1197 tomcat8 Medium denial of service
References
https://www.openwall.com/lists/oss-security/2020/06/25/6
https://tomcat.apache.org/security-9.html#Fixed_in_Apache_Tomcat_9.0.36
https://github.com/apache/tomcat/commit/9a0231683a77e2957cea0fdee88b193b30b0c976
https://tomcat.apache.org/security-8.html#Fixed_in_Apache_Tomcat_8.5.56
https://github.com/apache/tomcat/commit/c8acd2ab7371e39aeca7c306f3b5380f00afe552