description: In Apache HTTP Server 2.4.17 to 2.4.34, by sending continuous, large SETTINGS frames a client can occupy a connection, server thread and CPU time without any connection timeout coming to effect. This affects only HTTP/2 connections. A possible mitigation is to not enable the h2 protocol.
problem types: mod_http2, DoS via continuous SETTINGS frames
affected:
{
product: Apache HTTP Server
vendor: Apache Software Foundation
versions:
status: affected, version: 2.4.17 to 2.4.34
}