CVE-2019-9517

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Summary

CVECVE-2019-9517
StatePUBLIC
Assigner[email protected]
Source PriorityCVE Program / NVD first with legacy fallback
Published2019-08-13 21:15:00 UTC
Updated2023-11-07 03:13:00 UTC
DescriptionSome HTTP/2 implementations are vulnerable to unconstrained interal data buffering, potentially leading to a denial of service. The attacker opens the HTTP/2 window so the peer can send without constraint; however, they leave the TCP window closed so the peer cannot actually write (many of) the bytes on the wire. The attacker then sends a stream of requests for a large response object. Depending on how the servers queue the responses, this can consume excess memory, CPU, or both.

Risk And Classification

Problem Types: CWE-770

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Application Apache Http Server All All All All
Application Apache Traffic Server All All All All
Application Apache Traffic Server All All All All
Application Apache Traffic Server All All All All
Operating System Apple Mac Os X All All All All
Operating System Apple Mac Os X All All All All
Application Apple Swiftnio All All All All
Operating System Canonical Ubuntu Linux All All All All
Operating System Canonical Ubuntu Linux All All All All
Operating System Canonical Ubuntu Linux 16.04 All All All
Operating System Canonical Ubuntu Linux 18.04 All All All
Operating System Canonical Ubuntu Linux 19.04 All All All
Operating System Canonical Ubuntu Linux 16.04 All All All
Operating System Canonical Ubuntu Linux 18.04 All All All
Operating System Canonical Ubuntu Linux 19.04 All All All
Operating System Debian Debian Linux 10.0 All All All
Operating System Debian Debian Linux 9.0 All All All
Operating System Debian Debian Linux 10.0 All All All
Operating System Debian Debian Linux 9.0 All All All
Operating System Fedoraproject Fedora 29 All All All
Operating System Fedoraproject Fedora 30 All All All
Operating System Fedoraproject Fedora 29 All All All
Operating System Fedoraproject Fedora 30 All All All
Application Mcafee Web Gateway All All All All
Application Mcafee Web Gateway All All All All
Application Netapp Clustered Data Ontap - All All All
Application Netapp Clustered Data Ontap - All All All
Application Nodejs Node.js All All All All
Application Nodejs Node.js All All All All
Application Nodejs Node.js All All All All
Application Nodejs Node.js All All All All
Operating System Opensuse Leap 15.0 All All All
Operating System Opensuse Leap 15.1 All All All
Operating System Opensuse Leap 15.0 All All All
Operating System Opensuse Leap 15.1 All All All
Application Oracle Communications Element Manager 8.0.0 All All All
Application Oracle Communications Element Manager 8.1.0 All All All
Application Oracle Communications Element Manager 8.1.1 All All All
Application Oracle Communications Element Manager 8.2.0 All All All
Application Oracle Communications Element Manager 8.0.0 All All All
Application Oracle Communications Element Manager 8.1.0 All All All
Application Oracle Communications Element Manager 8.1.1 All All All
Application Oracle Communications Element Manager 8.2.0 All All All
Application Oracle Graalvm 19.2.0 All All All
Application Oracle Graalvm 19.2.0 All All All
Application Oracle Instantis Enterprisetrack All All All All
Application Oracle Retail Xstore Point Of Service 7.1 All All All
Application Oracle Retail Xstore Point Of Service 7.1 All All All
Operating System Redhat Enterprise Linux 8.0 All All All
Operating System Redhat Enterprise Linux 8.0 All All All
Application Redhat Jboss Core Services 1.0 All All All
Application Redhat Jboss Core Services 1.0 All All All
Application Redhat Jboss Enterprise Application Platform 7.2.0 All All All
Application Redhat Jboss Enterprise Application Platform 7.3.0 All All All
Application Redhat Jboss Enterprise Application Platform 7.2.0 All All All
Application Redhat Jboss Enterprise Application Platform 7.3.0 All All All
Application Redhat Openshift Service Mesh 1.0 All All All
Application Redhat Openshift Service Mesh 1.0 All All All
Application Redhat Quay 3.0.0 All All All
Application Redhat Quay 3.0.0 All All All
Application Redhat Software Collections 1.0 All All All
Application Redhat Software Collections 1.0 All All All
Application Synology Diskstation Manager 6.2 All All All
Application Synology Diskstation Manager 6.2 All All All
Application Synology Skynas - All All All
Application Synology Skynas - All All All
Hardware Synology Vs960hd - All All All
Hardware Synology Vs960hd - All All All
Operating System Synology Vs960hd Firmware - All All All
Operating System Synology Vs960hd Firmware - All All All

References

ReferenceSourceLinkTags
Red Hat Customer Portal REDHAT access.redhat.com Third Party Advisory
Pony Mail! lists.apache.org
myF5 support.f5.com
Pony Mail! MLIST lists.apache.org Issue Tracking, Third Party Advisory
Red Hat Customer Portal REDHAT access.redhat.com Third Party Advisory
Pony Mail! lists.apache.org
Pony Mail! MLIST lists.apache.org
[SECURITY] Fedora 29 Update: mod_http2-1.15.3-2.fc29 - package-announce - Fedora Mailing-Lists lists.fedoraproject.org
Pony Mail! MLIST lists.apache.org
Pony Mail! MLIST lists.apache.org
Pony Mail! lists.apache.org
[SECURITY] Fedora 29 Update: nodejs-10.16.3-1.fc29 - package-announce - Fedora Mailing-Lists FEDORA lists.fedoraproject.org Mailing List, Third Party Advisory
Debian -- Security Information -- DSA-4509-1 apache2 DEBIAN www.debian.org Third Party Advisory
Red Hat Customer Portal REDHAT access.redhat.com Third Party Advisory
Pony Mail! lists.apache.org
September 2019 Apache HTTP Server Vulnerabilities in NetApp Products | NetApp Product Security CONFIRM security.netapp.com Third Party Advisory
Pony Mail! MLIST lists.apache.org Issue Tracking, Third Party Advisory
[SECURITY] Fedora 30 Update: mod_http2-1.15.3-2.fc30 - package-announce - Fedora Mailing-Lists FEDORA lists.fedoraproject.org Mailing List, Third Party Advisory
Pony Mail! MLIST lists.apache.org
Pony Mail! lists.apache.org
support.f5.com/csp/article/K02591030 CONFIRM support.f5.com Third Party Advisory
CVE-2019-9517 Apache HTTP Server Vulnerability in NetApp Products | NetApp Product Security CONFIRM security.netapp.com Third Party Advisory
Red Hat Customer Portal REDHAT access.redhat.com Third Party Advisory
Pony Mail! lists.apache.org
Pony Mail! MLIST lists.apache.org Mailing List, Third Party Advisory
Pony Mail! lists.apache.org
Pony Mail! lists.apache.org
Pony Mail! lists.apache.org
McAfee Security Bulletin - Updates and product status for HTTP/2 vulnerabilities (CVE-2019-9511, CVE-2019-9512, CVE-2019-9513, CVE-2019-9514, CVE-2019-9515, CVE-2019-9516, CVE-2019-9517, CVE-2019-9518, CVE-2019-3643, and CVE-2019-3644) CONFIRM kc.mcafee.com Third Party Advisory
Pony Mail! MLIST lists.apache.org Issue Tracking, Third Party Advisory
[SECURITY] Fedora 30 Update: mod_http2-1.15.3-2.fc30 - package-announce - Fedora Mailing-Lists lists.fedoraproject.org
USN-4113-1: Apache HTTP Server vulnerabilities | Ubuntu security notices | Ubuntu UBUNTU usn.ubuntu.com Third Party Advisory
August 2019 Node.js Vulnerabilities in NetApp Products | NetApp Product Security CONFIRM security.netapp.com Third Party Advisory
Pony Mail! lists.apache.org
Synology Inc. CONFIRM www.synology.com Third Party Advisory
[SECURITY] Fedora 29 Update: mod_http2-1.15.3-2.fc29 - package-announce - Fedora Mailing-Lists FEDORA lists.fedoraproject.org Mailing List, Third Party Advisory
oss-security - CVE-2019-9517: mod_http2, DoS attack by exhausting h2 workers MLIST www.openwall.com Mailing List, Third Party Advisory
[security-announce] openSUSE-SU-2019:2115-1: important: Security update SUSE lists.opensuse.org Mailing List, Third Party Advisory
Pony Mail! lists.apache.org
Red Hat Customer Portal REDHAT access.redhat.com Third Party Advisory
Pony Mail! MLIST lists.apache.org
security-bulletins/2019-002.md at master · Netflix/security-bulletins · GitHub MISC github.com Third Party Advisory
[SECURITY] Fedora 29 Update: nodejs-10.16.3-1.fc29 - package-announce - Fedora Mailing-Lists lists.fedoraproject.org
Pony Mail! MLIST lists.apache.org
[SECURITY] Fedora 30 Update: nodejs-10.16.3-1.fc30 - package-announce - Fedora Mailing-Lists lists.fedoraproject.org
Apache: Multiple vulnerabilities (GLSA 201909-04) — Gentoo security GENTOO security.gentoo.org Third Party Advisory
Red Hat Customer Portal REDHAT access.redhat.com Third Party Advisory
Red Hat Customer Portal REDHAT access.redhat.com Third Party Advisory
Pony Mail! MLIST lists.apache.org Issue Tracking, Third Party Advisory
Red Hat Customer Portal REDHAT access.redhat.com Third Party Advisory
Pony Mail! MLIST lists.apache.org
[security-announce] openSUSE-SU-2019:2114-1: important: Security update SUSE lists.opensuse.org Mailing List, Third Party Advisory
support.f5.com/csp/article/K02591030 CONFIRM support.f5.com Third Party Advisory
Oracle Critical Patch Update - October 2019 MISC www.oracle.com Patch, Third Party Advisory
Pony Mail! lists.apache.org
Oracle Critical Patch Update Advisory - April 2020 N/A www.oracle.com Third Party Advisory
Red Hat Customer Portal REDHAT access.redhat.com Third Party Advisory
[SECURITY] Fedora 30 Update: nodejs-10.16.3-1.fc30 - package-announce - Fedora Mailing-Lists FEDORA lists.fedoraproject.org Mailing List, Third Party Advisory
Pony Mail! MLIST lists.apache.org
Pony Mail! lists.apache.org
Pony Mail! lists.apache.org
Red Hat Customer Portal REDHAT access.redhat.com Third Party Advisory
Bugtraq: [SECURITY] [DSA 4509-1] apache2 security update BUGTRAQ seclists.org Mailing List, Third Party Advisory
[security-announce] openSUSE-SU-2019:2051-1: important: Security update SUSE lists.opensuse.org Mailing List, Third Party Advisory
VU#605641 - HTTP/2 implementations do not robustly handle abnormal traffic and resource exhaustion CERT-VN kb.cert.org Third Party Advisory, US Government Resource
Pony Mail! MLIST lists.apache.org Mailing List, Third Party Advisory
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Vendor Comments And Credit

Discovery Credit

LEGACY: Thanks to Jonathan Looney of Netflix for reporting this vulnerability.

Legacy QID Mappings

  • 296079 Oracle Solaris 11.4 Support Repository Update (SRU) 15.5.0 Missing (CPUOCT2019)
  • 377378 Alibaba Cloud Linux Security Update for httpd:2.4 (ALINUX3-SA-2022:0017)
  • 500018 Alpine Linux Security Update for apache2
  • 500434 Alpine Linux Security Update for nodejs
  • 503709 Alpine Linux Security Update for apache2
  • 504197 Alpine Linux Security Update for nodejs
  • 710128 Gentoo Linux Apache Multiple vulnerabilities (GLSA 201909-04)
  • 940051 AlmaLinux Security Update for nodejs:10 (ALSA-2019:2925)
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