Severity
7.5HIGH
EPSS
9.5%
top 7.17%
CISA KEV
Not in KEV
Exploit
No known exploits
Timeline
PublishedAug 13
Latest updateAug 1

Description

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.

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:HExploitability: 3.9 | Impact: 3.6

Affected Packages26 packages

NVDopensuse/leap15.0, 15.1+1
Gostdlib1.12.0-01.12.8+1

Also affects: Openshift Container Platform 3.10, 3.11, 3.9, 4.1, 4.2, Debian Linux 10.0, 9.0, Fedora 29, 30, Ubuntu Linux 16.04, 18.04, 19.04, Enterprise Linux 8.0, 8.1

🔴Vulnerability Details

10
OSV
Reset flood in net/http and golang.org/x/net/http2022-08-01
OSV
golang.org/x/net/http vulnerable to ping floods2022-05-24
GHSA
golang.org/x/net/http vulnerable to a reset flood2022-05-24
OSV
golang.org/x/net/http vulnerable to a reset flood2022-05-24
OSV
HTTP/2 DoS Attacks: Ping, Reset, and Settings Floods2022-03-14

🔍Detection Rules

1
Suricata
ET DOS Possible Microsoft Windows HTTP2 Reset Flood Denial of Service Inbound (CVE-2019-9514)2021-10-04

📋Vendor Advisories

6
Ubuntu
Netty vulnerabilities2021-06-29
Ubuntu
Twisted vulnerabilities2020-03-19
Red Hat
HTTP/2: flood using HEADERS frames results in unbounded memory growth2019-08-13
Apple
CVE-2019-9514: SwiftNIO HTTP/2 1.5.02019-08-13
Microsoft
HTTP/2 Server Denial of Service Vulnerability2019-08-13

💬Community

11
Bugzilla
CVE-2019-9514 undertow: HTTP/2: flood using HEADERS frames results in unbounded memory growth [fedora-all]2019-09-03
Bugzilla
CVE-2019-9514 kubernetes: HTTP/2: flood using HEADERS frames results in unbounded memory growth [fedora-all]2019-08-26
Bugzilla
CVE-2019-9514 nodejs: HTTP/2: flood using HEADERS frames results in unbounded memory growth [epel-all]2019-08-16
Bugzilla
CVE-2019-9514 nodejs: http/2: HTTP/2 flood using HEADERS frames results in unbounded memory growth [fedora-all]2019-08-16
Bugzilla
CVE-2019-9514 golang: HTTP/2: flood using HEADERS frames results in unbounded memory growth [fedora-all]2019-08-16