Saint Reset Flood

Technical record

Disclosed on

August 13 2019

CVE

CVE-2019-9514

CVSS

7.5

Some HTTP/2 implementations are vulnerable to a reset flood, potentially leading to a denial of service. The attacker opens a number of streams and sends an invalid request over each stream that should solicit a stream of RST_STREAM frames from the peer. Depending on how the peer queues the RST_STREAM frames, this can consume excess memory, CPU, or both.

Sources: github.com