CVE-2019-9512

HIGH7.5EPSS 50.8%

golang.org/x/net/http vulnerable to a reset flood

Published: 5/24/2022Modified: 2/4/2026
Also known as:GHSA-39qc-96h7-956fGHSA-hgr8-6h9x-f7q9ALPINE-CVE-2019-9512CGA-hxrg-2m2v-635rDEBIAN-CVE-2019-9512GO-2022-0536

Description

Some HTTP/2 implementations are vulnerable to a reset flood, potentially leading to a denial of service. Servers that accept direct connections from untrusted clients could be remotely made to allocate an unlimited amount of memory, until the program crashes. 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. ### Specific Go Packages Affected golang.org/x/net/http2

Affected packages (9)

CVSS scores

SourceVersionSeverityVector
osvCVSS 3.1HIGH7.5CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

References (78)