CVE-2020-11080

In nghttp2 before version 1.41.0, the overly large HTTP/2 SETTINGS frame payload causes denial of service. The proof of concept attack involves a malicious client constructing a SETTINGS frame with a length of 14,400 bytes 2400 individual settings entries over and over again. The attack causes th...

nghttp2 -- DoS vulnerability

nghttp2 security advisories: The overly large HTTP/2 SETTINGS frame payload causes denial of service. The proof of concept attack involves a malicious client constructing a SETTINGS frame with a length of 14,400 bytes 2400 individual settings entries over and over again. The attack causes the CPU...

SUSE SLES12 Security Update : nodejs12 (SUSE-SU-2020:0059-1) (0-Length Headers Leak) (Data Dribble) (Empty Frames Flood) (Internal Data Buffering) (Ping Flood) (Reset Flood) (Resource Loop) (Settings Flood)

This update for nodejs12 fixes the following issues : Update to LTS release 12.13.0 jscSLE-8947. Security issues fixed : CVE-2019-9511: Fixed the HTTP/2 implementation that was vulnerable to window size manipulations bsc1146091. CVE-2019-9512: Fixed the HTTP/2 implementation that was vulnerable t...

ALPINE-CVE-2019-9515

Some HTTP/2 implementations are vulnerable to a settings flood, potentially leading to a denial of service. The attacker sends a stream of SETTINGS frames to the peer. Since the RFC requires that the peer reply with one acknowledgement per SETTINGS frame, an empty SETTINGS frame is almost...

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...