Node.js: Node.js HTTP/2 Large Settings Frame DoS

Hi, I would like to report a vulnerability in the http2 module of Node.js. In section 10.5 of the HTTP/2 RFC an attack is described where an attacker is sending large SETTINGS frames that includes many settings inside it. We tested this scenario by opening many connections to the server and sendi...

DEBIAN-CVE-2018-11763

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...

haproxy: Heap buffer overflow in mux_h2.c:h2_process_demux() can allow attackers to cause a denial of service

An issue was discovered in HAProxy before 1.8.8. The incoming H2 frame length was checked against the maxframesize setting instead of being checked against the bufsize. The maxframesize only applies to outgoing traffic and not to incoming, so if a large enough frame size is advertised in the...