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.
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.
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
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