Some HTTP/2 implementations are vulnerable to ping floods, potentially leading to a…
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Denial of service
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- Partial Red Hat: 35 fixed, 11 without a fix
Attack profile from CVSS 3.1 · NVD. Fix status from CNA, GitHub and Red Hat. Impact type from CWE-400.
Summary
Some HTTP/2 implementations are vulnerable to ping floods, potentially leading to a denial of service. The attacker sends continual pings to an HTTP/2 peer, causing the peer to build an internal queue of responses. Depending on how efficiently this data is queued, this can consume excess CPU, memory, or both.
Why it matters now
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
| — | golang.org/x/net (Go) | before 0.0.0-20190813141303-74dc4d7220e7 | 0.0.0-20190813141303-74dc4d7220e7 | Patch available | GHSA-hgr8-6h9x-f7q9 |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
- golang.org/x/net (Go) Vendor— Affected before 0.0.0-20190813141303-74dc4d7220e7 Fixed in 0.0.0-20190813141303-74dc4d7220e7 Patch available GHSA-hgr8-6h9x-f7q9
CPE configurations NVD · 10
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:apple:swiftnio:*:*:*:*:*:*:*:* | 1.0.0 – 1.4.0 | Vulnerable | Apple |
| cpe:2.3:o:apple:mac_os_x:*:*:*:*:*:*:*:* | 10.12 | Running on | Apple |
| cpe:2.3:o:canonical:ubuntu_linux:*:*:*:*:*:*:*:* | 14.04 | Running on | Canonical |
| cpe:2.3:a:apache:traffic_server:*:*:*:*:*:*:*:* | 6.0.0 – 6.2.3; 7.0.0 – 7.1.6; 8.0.0 – 8.0.3 | Vulnerable | Apache |
| cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:* | 10.0 | Vulnerable | Debian |
| cpe:2.3:a:nodejs:node.js:*:*:*:*:-:*:*:* | 8.0.0 – 8.8.1 | Vulnerable | NodeJS |
| cpe:2.3:a:nodejs:node.js:*:*:*:*:lts:*:*:* | 8.9.0 to before 8.16.1 | Vulnerable | NodeJS |
| cpe:2.3:a:nodejs:node.js:*:*:*:*:-:*:*:* | 10.0.0 – 10.12.0 | Vulnerable | NodeJS |
| cpe:2.3:a:nodejs:node.js:*:*:*:*:lts:*:*:* | 10.13.0 to before 10.16.3 | Vulnerable | NodeJS |
| cpe:2.3:a:nodejs:node.js:*:*:*:*:-:*:*:* | 12.0.0 to before 12.8.1 | Vulnerable | NodeJS |
- cpe:2.3:a:apple:swiftnio:*:*:*:*:*:*:*:* Versions 1.0.0 – 1.4.0 Vulnerable ·Apple
- cpe:2.3:o:apple:mac_os_x:*:*:*:*:*:*:*:* Versions 10.12 Running on ·Apple
- cpe:2.3:o:canonical:ubuntu_linux:*:*:*:*:*:*:*:* Versions 14.04 Running on ·Canonical
- cpe:2.3:a:apache:traffic_server:*:*:*:*:*:*:*:* Versions 6.0.0 – 6.2.3; 7.0.0 – 7.1.6; 8.0.0 – 8.0.3 Vulnerable ·Apache
- cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:* Versions 10.0 Vulnerable ·Debian
- cpe:2.3:a:nodejs:node.js:*:*:*:*:-:*:*:* Versions 8.0.0 – 8.8.1 Vulnerable ·NodeJS
- cpe:2.3:a:nodejs:node.js:*:*:*:*:lts:*:*:* Versions 8.9.0 to before 8.16.1 Vulnerable ·NodeJS
- cpe:2.3:a:nodejs:node.js:*:*:*:*:-:*:*:* Versions 10.0.0 – 10.12.0 Vulnerable ·NodeJS
- cpe:2.3:a:nodejs:node.js:*:*:*:*:lts:*:*:* Versions 10.13.0 to before 10.16.3 Vulnerable ·NodeJS
- cpe:2.3:a:nodejs:node.js:*:*:*:*:-:*:*:* Versions 12.0.0 to before 12.8.1 Vulnerable ·NodeJS
Remediation
- Fix · GHSA-hgr8-6h9x-f7q9 golang.org/x/net (Go) Fixed in 0.0.0-20190813141303-74dc4d7220e7 Advisory →
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Vendor assessments
Red Hat
Red Hat rating: Important. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat AMQ Broker 7 | Affected | No fix yet |
| Red Hat Ceph Storage 2 | Affected | No fix planned: Will not fix |
| Red Hat Ceph Storage 3 | Affected | No fix planned: Will not fix |
| Red Hat JBoss Fuse 6 | Affected | No fix planned: Out of support scope |
| Red Hat OpenShift Application Runtimes | Affected | No fix yet |
| Red Hat OpenShift Container Platform 3.10 | Affected | No fix yet |
| Red Hat OpenShift Container Platform 3.11 | Affected | No fix yet |
| Red Hat OpenShift Container Platform 4 | Affected | No fix yet |
| Red Hat OpenStack Platform 9 (Mitaka) Operational Tools | Affected | No fix planned: Will not fix |
| Red Hat Quay 3 | Affected | No fix yet |
| Red Hat Storage 3 | Affected | No fix yet |
| Quay v3 | Fixed | RHSA-2019:2966 |
| Red Hat AMQ | Fixed | RHSA-2020:0922 |
| Red Hat AMQ 7.4.3 | Fixed | RHSA-2020:1445 |
| Red Hat Data Grid 7.3.3 | Fixed | RHSA-2020:0727 |
| Red Hat Decision Manager 7 | Fixed | RHSA-2020:3196 |
| Red Hat Developer Tools for Red Hat Enterprise Linux Server (v. 7) | Fixed | RHSA-2019:2682 |
| Red Hat Developer Tools for Red Hat Enterprise Linux Workstation (v. 7) | Fixed | RHSA-2019:2682 |
| Red Hat Enterprise Linux 7 Extras | Fixed | RHSA-2020:0406 |
| Red Hat Enterprise Linux AppStream (v. 8) | Fixed | RHSA-2019:2726, RHSA-2019:2925, RHSA-2019:4269, RHSA-2019:4273 |
| Red Hat Fuse 6.3 | Fixed | RHSA-2019:4352 |
| Red Hat Fuse 7.5.0 | Fixed | RHSA-2019:3892 |
| Red Hat Fuse 7.6.0 | Fixed | RHSA-2020:0983 |
| Red Hat JBoss EAP 7.2 | Fixed | RHSA-2019:4021 |
| Red Hat JBoss EAP 7.2 for RHEL 6 Server | Fixed | RHSA-2019:4018 |
| Red Hat JBoss EAP 7.2 for RHEL 7 Server | Fixed | RHSA-2019:4019 |
| Red Hat JBoss EAP 7.2 for RHEL 8 | Fixed | RHSA-2019:4020 |
| Red Hat JBoss Enterprise Application Platform 7.1 EUS for RHEL 7 Server | Fixed | RHSA-2024:5856 |
| Red Hat JBoss Enterprise Application Platform Continuous Delivery | Fixed | RHSA-2020:2565 |
| Red Hat OpenShift Container Platform 3.10 | Fixed | RHSA-2019:2690 |
| Red Hat OpenShift Container Platform 3.11 | Fixed | RHSA-2019:2817, RHSA-2019:3906 |
| Red Hat OpenShift Container Platform 3.9 | Fixed | RHSA-2019:2769 |
| Red Hat OpenShift Container Platform 4.1 | Fixed | RHSA-2019:2594, RHSA-2019:2661, RHSA-2019:2766, RHSA-2019:2861, RHSA-2019:3131, RHSA-2019:3265 |
| Red Hat OpenShift Container Platform 4.2 | Fixed | RHSA-2019:3245 |
| Red Hat OpenStack Platform 14.0 | Fixed | RHSA-2019:2796 |
| Red Hat Process Automation 7 | Fixed | RHSA-2020:3197 |
| Red Hat Single Sign-On 7.3 | Fixed | RHSA-2019:4045 |
| Red Hat Single Sign-On 7.3 for RHEL 6 Server | Fixed | RHSA-2019:4040 |
| Red Hat Single Sign-On 7.3 for RHEL 7 Server | Fixed | RHSA-2019:4041 |
| Red Hat Single Sign-On 7.3 for RHEL 8 | Fixed | RHSA-2019:4042 |
| Red Hat Software Collections for Red Hat Enterprise Linux Server (v. 7) | Fixed | RHSA-2019:2939, RHSA-2019:2955 |
| Red Hat Software Collections for Red Hat Enterprise Linux Server EUS (v. 7.5) | Fixed | RHSA-2019:2939, RHSA-2019:2955 |
| Red Hat Software Collections for Red Hat Enterprise Linux Server EUS (v. 7.6) | Fixed | RHSA-2019:2939, RHSA-2019:2955 |
| Red Hat Software Collections for Red Hat Enterprise Linux Server EUS (v. 7.7) | Fixed | RHSA-2019:2939, RHSA-2019:2955 |
| Red Hat Software Collections for Red Hat Enterprise Linux Workstation (v. 7) | Fixed | RHSA-2019:2939, RHSA-2019:2955 |
| Text-Only RHOAR | Fixed | RHSA-2020:2067 |
Not affected: 20 products
- CloudForms Management Engine 5
- OpenShift Service Mesh Tech Preview
- Red Hat Ansible Tower 3
- Red Hat Ceph Storage 2
- Red Hat Enterprise Linux 7
- Red Hat Enterprise Linux 8
- Red Hat JBoss Data Grid 7
- Red Hat JBoss Data Virtualization 6
- Red Hat JBoss Enterprise Application Platform 6
- Red Hat OpenShift Container Platform 3.10
- Red Hat OpenShift Container Platform 3.11
- Red Hat OpenShift Container Platform 3.9
- Red Hat OpenShift Container Platform 4
- Red Hat OpenShift Container Platform 4.1
- Red Hat Process Automation 7
- Red Hat Quay 3
- Red Hat Single Sign-On 7
- Red Hat Software Collections
- Red Hat Storage 3
- streams for Apache Kafka
Timeline
- 2026-10-02 Threatist record created from CVE-2019-9512
- 2026-10-03 Alias added: GHSA-hgr8-6h9x-f7q9
References
Advisory 62
- VU#605641
- https://github.com/Netflix/security-bulletins/blob/master/advisories/third-party/2019-002.md
- 20190814 APPLE-SA-2019-08-13-5 SwiftNIO HTTP/2 1.5.0
- 20190816 APPLE-SA-2019-08-13-5 SwiftNIO HTTP/2 1.5.0
- https://www.synology.com/security/advisory/Synology_SA_19_33
- 20190819 [SECURITY] [DSA 4503-1] golang-1.11 security update
- DSA-4503
- https://support.f5.com/csp/article/K98053339
- [oss-security] 20190819 [ANNOUNCE] Security release of Kubernetes v1.15.3, v1.14.6, v1.13.10 - CVE-2019-9512 and CVE-2019-9514
- https://security.netapp.com/advisory/ntap-20190823-0001/
- https://security.netapp.com/advisory/ntap-20190823-0004/
- https://security.netapp.com/advisory/ntap-20190823-0005/
- openSUSE-SU-2019:2000
- FEDORA-2019-5a6a7bc12c
- FEDORA-2019-6a2980de56
- 20190825 [SECURITY] [DSA 4508-1] h2o security update
- DSA-4508
- openSUSE-SU-2019:2056
- openSUSE-SU-2019:2072
- FEDORA-2019-55d101a740
- FEDORA-2019-65db7ad6c7
- openSUSE-SU-2019:2085
- RHSA-2019:2682
- DSA-4520
- RHSA-2019:2726
- 20190910 [SECURITY] [DSA 4520-1] trafficserver security update
- RHSA-2019:2594
- openSUSE-SU-2019:2114
- openSUSE-SU-2019:2115
- RHSA-2019:2661
- https://kc.mcafee.com/corporate/index?page=content&id=SB10296
- RHSA-2019:2690
- RHSA-2019:2766
- openSUSE-SU-2019:2130
- RHSA-2019:2796
- RHSA-2019:2861
- RHSA-2019:2925
- RHSA-2019:2939
- RHSA-2019:2955
- RHSA-2019:2966
- RHSA-2019:3131
- RHSA-2019:2769
- RHSA-2019:3245
- RHSA-2019:3265
- RHSA-2019:3892
- RHSA-2019:3906
- RHSA-2019:4018
- RHSA-2019:4019
- RHSA-2019:4021
- RHSA-2019:4020
- RHSA-2019:4045
- RHSA-2019:4042
- RHSA-2019:4040
- RHSA-2019:4041
- RHSA-2019:4269
- RHSA-2019:4273
- RHSA-2019:4352
- RHSA-2020:0406
- RHSA-2020:0727
- USN-4308-1
- [debian-lts-announce] 20201208 [SECURITY] [DLA 2485-1] golang-golang-x-net-dev security update
- https://nvd.nist.gov/vuln/detail/CVE-2019-9512
Other 22
- [trafficserver-dev] 20190813 Apache Traffic Server is vulnerable to various HTTP/2 attacks
- [trafficserver-users] 20190813 Apache Traffic Server is vulnerable to various HTTP/2 attacks
- [trafficserver-announce] 20190813 Apache Traffic Server is vulnerable to various HTTP/2 attacks
- https://support.f5.com/csp/article/K98053339?utm_source=f5support&%3Butm_medium=RSS
- https://go.dev/cl/190137
- https://go.dev/issue/33606
- https://go.googlesource.com/go/+/145e193131eb486077b66009beb051aba07c52a5
- https://groups.google.com/g/golang-announce/c/65QixT3tcmg/m/DrFiG6vvCwAJ
- https://kb.cert.org/vuls/id/605641
- https://lists.apache.org/thread.html/392108390cef48af647a2e47b7fd5380e050e35ae8d1aa2030254c04@%3Cusers.trafficserver.apache.org%3E
- https://lists.apache.org/thread.html/ad3d01e767199c1aed8033bb6b3f5bf98c011c7c536f07a5d34b3c19@%3Cannounce.trafficserver.apache.org%3E
- https://lists.apache.org/thread.html/bde52309316ae798186d783a5e29f4ad1527f61c9219a289d0eee0a7@%3Cdev.trafficserver.apache.org%3E
- https://lists.fedoraproject.org/archives/list/[email protected]/message/4BBP27PZGSY6OP6D26E5FW4GZKBFHNU7
- https://lists.fedoraproject.org/archives/list/[email protected]/message/4ZQGHE3WTYLYAYJEIDJVF2FIGQTAYPMC
- https://lists.fedoraproject.org/archives/list/[email protected]/message/CMNFX5MNYRWWIMO4BTKYQCGUDMHO3AXP
- https://lists.fedoraproject.org/archives/list/[email protected]/message/LYO6E3H34C346D2E443GLXK7OK6KIYIQ
- https://pkg.go.dev/vuln/GO-2022-0536
- https://security.netapp.com/advisory/ntap-20190823-0001
- https://security.netapp.com/advisory/ntap-20190823-0004
- https://security.netapp.com/advisory/ntap-20190823-0005
- https://support.f5.com/csp/article/K98053339?utm_source=f5support&utm_medium=RSS
- https://usn.ubuntu.com/4308-1
Sources
- CVE-2019-9512 · CVE Program
- CVE-2019-9512 · NVD
- FIRST EPSS
- GHSA-hgr8-6h9x-f7q9 · GitHub Advisory Database · CC BY 4.0
- CVE-2019-9512 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences