CVE-2019-9517
Some HTTP/2 implementations are vulnerable to unconstrained interal data buffering, potentially leading to a denial of service
Severity Score
7.5
*CVSS v3.1
Exploit Likelihood
*EPSS
Affected Versions
*CPE
Public Exploits
0
*Multiple Sources
Exploited in Wild
-
*KEV
Decision
-
*SSVC
Descriptions
Some 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.
Algunas implementaciones HTTP / 2 son vulnerables al almacenamiento en búfer de datos interal sin restricciones, lo que puede conducir a una denegación de servicio. El atacante abre la ventana HTTP / 2 para que el par pueda enviar sin restricciones; sin embargo, dejan la ventana TCP cerrada para que el igual no pueda escribir (muchos de) los bytes en el cable. El atacante luego envía una secuencia de solicitudes para un objeto de respuesta grande. Dependiendo de cómo los servidores ponen en cola las respuestas, esto puede consumir un exceso de memoria, CPU o ambos.
A vulnerability was found in HTTP/2. An attacker can open a HTTP/2 window so the peer can send without constraint. The TCP window remains closed so the peer cannot write the bytes on the wire. The attacker then sends a stream of requests for a large response object. Depending on how the server's queue is setup, the responses can consume excess memory, CPU, or both, potentially leading to a denial of service. The highest threat from this vulnerability is to system availability.
*Credits:
Thanks to Jonathan Looney of Netflix for reporting this vulnerability.
CVSS Scores
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
Attack Vector
Attack Complexity
Authentication
Confidentiality
Integrity
Availability
* Common Vulnerability Scoring System
SSVC
- Decision:-
Exploitation
Automatable
Tech. Impact
* Organization's Worst-case Scenario
Timeline
- 2019-03-01 CVE Reserved
- 2019-08-13 CVE Published
- 2024-08-04 CVE Updated
- 2024-08-06 EPSS Updated
- ---------- Exploited in Wild
- ---------- KEV Due Date
- ---------- First Exploit
CWE
- CWE-400: Uncontrolled Resource Consumption
- CWE-770: Allocation of Resources Without Limits or Throttling
CAPEC
References (49)
| URL | Date | SRC |
|---|
| URL | Date | SRC |
|---|---|---|
| https://www.oracle.com/technetwork/security-advisory/cpuoct2019-5072832.html | 2023-11-07 |
Affected Vendors, Products, and Versions
| Vendor | Product | Version | Other | Status | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Vendor | Product | Version | Other | Status | <-- --> | Vendor | Product | Version | Other | Status |
| Apple Search vendor "Apple" | Swiftnio Search vendor "Apple" for product "Swiftnio" | >= 1.0.0 <= 1.4.0 Search vendor "Apple" for product "Swiftnio" and version " >= 1.0.0 <= 1.4.0" | - |
Affected
| in | Apple Search vendor "Apple" | Mac Os X Search vendor "Apple" for product "Mac Os X" | >= 10.12 Search vendor "Apple" for product "Mac Os X" and version " >= 10.12" | - |
Safe
|
| Apple Search vendor "Apple" | Swiftnio Search vendor "Apple" for product "Swiftnio" | >= 1.0.0 <= 1.4.0 Search vendor "Apple" for product "Swiftnio" and version " >= 1.0.0 <= 1.4.0" | - |
Affected
| in | Canonical Search vendor "Canonical" | Ubuntu Linux Search vendor "Canonical" for product "Ubuntu Linux" | >= 14.04 Search vendor "Canonical" for product "Ubuntu Linux" and version " >= 14.04" | - |
Safe
|
| Synology Search vendor "Synology" | Vs960hd Firmware Search vendor "Synology" for product "Vs960hd Firmware" | - | - |
Affected
| in | Synology Search vendor "Synology" | Vs960hd Search vendor "Synology" for product "Vs960hd" | - | - |
Safe
|
| Apache Search vendor "Apache" | Http Server Search vendor "Apache" for product "Http Server" | >= 2.4.20 < 2.4.40 Search vendor "Apache" for product "Http Server" and version " >= 2.4.20 < 2.4.40" | - |
Affected
| ||||||
| Apache Search vendor "Apache" | Traffic Server Search vendor "Apache" for product "Traffic Server" | >= 6.0.0 <= 6.2.3 Search vendor "Apache" for product "Traffic Server" and version " >= 6.0.0 <= 6.2.3" | - |
Affected
| ||||||
| Apache Search vendor "Apache" | Traffic Server Search vendor "Apache" for product "Traffic Server" | >= 7.0.0 <= 7.1.6 Search vendor "Apache" for product "Traffic Server" and version " >= 7.0.0 <= 7.1.6" | - |
Affected
| ||||||
| Apache Search vendor "Apache" | Traffic Server Search vendor "Apache" for product "Traffic Server" | >= 8.0.0 <= 8.0.3 Search vendor "Apache" for product "Traffic Server" and version " >= 8.0.0 <= 8.0.3" | - |
Affected
| ||||||
| Canonical Search vendor "Canonical" | Ubuntu Linux Search vendor "Canonical" for product "Ubuntu Linux" | 16.04 Search vendor "Canonical" for product "Ubuntu Linux" and version "16.04" | lts |
Affected
| ||||||
| Canonical Search vendor "Canonical" | Ubuntu Linux Search vendor "Canonical" for product "Ubuntu Linux" | 18.04 Search vendor "Canonical" for product "Ubuntu Linux" and version "18.04" | lts |
Affected
| ||||||
| Canonical Search vendor "Canonical" | Ubuntu Linux Search vendor "Canonical" for product "Ubuntu Linux" | 19.04 Search vendor "Canonical" for product "Ubuntu Linux" and version "19.04" | - |
Affected
| ||||||
| Debian Search vendor "Debian" | Debian Linux Search vendor "Debian" for product "Debian Linux" | 9.0 Search vendor "Debian" for product "Debian Linux" and version "9.0" | - |
Affected
| ||||||
| Debian Search vendor "Debian" | Debian Linux Search vendor "Debian" for product "Debian Linux" | 10.0 Search vendor "Debian" for product "Debian Linux" and version "10.0" | - |
Affected
| ||||||
| Synology Search vendor "Synology" | Diskstation Manager Search vendor "Synology" for product "Diskstation Manager" | 6.2 Search vendor "Synology" for product "Diskstation Manager" and version "6.2" | - |
Affected
| ||||||
| Synology Search vendor "Synology" | Skynas Search vendor "Synology" for product "Skynas" | - | - |
Affected
| ||||||
| Fedoraproject Search vendor "Fedoraproject" | Fedora Search vendor "Fedoraproject" for product "Fedora" | 29 Search vendor "Fedoraproject" for product "Fedora" and version "29" | - |
Affected
| ||||||
| Fedoraproject Search vendor "Fedoraproject" | Fedora Search vendor "Fedoraproject" for product "Fedora" | 30 Search vendor "Fedoraproject" for product "Fedora" and version "30" | - |
Affected
| ||||||
| Opensuse Search vendor "Opensuse" | Leap Search vendor "Opensuse" for product "Leap" | 15.0 Search vendor "Opensuse" for product "Leap" and version "15.0" | - |
Affected
| ||||||
| Opensuse Search vendor "Opensuse" | Leap Search vendor "Opensuse" for product "Leap" | 15.1 Search vendor "Opensuse" for product "Leap" and version "15.1" | - |
Affected
| ||||||
| Redhat Search vendor "Redhat" | Jboss Core Services Search vendor "Redhat" for product "Jboss Core Services" | 1.0 Search vendor "Redhat" for product "Jboss Core Services" and version "1.0" | - |
Affected
| ||||||
| Redhat Search vendor "Redhat" | Jboss Enterprise Application Platform Search vendor "Redhat" for product "Jboss Enterprise Application Platform" | 7.2.0 Search vendor "Redhat" for product "Jboss Enterprise Application Platform" and version "7.2.0" | - |
Affected
| ||||||
| Redhat Search vendor "Redhat" | Jboss Enterprise Application Platform Search vendor "Redhat" for product "Jboss Enterprise Application Platform" | 7.3.0 Search vendor "Redhat" for product "Jboss Enterprise Application Platform" and version "7.3.0" | - |
Affected
| ||||||
| Redhat Search vendor "Redhat" | Openshift Service Mesh Search vendor "Redhat" for product "Openshift Service Mesh" | 1.0 Search vendor "Redhat" for product "Openshift Service Mesh" and version "1.0" | - |
Affected
| ||||||
| Redhat Search vendor "Redhat" | Quay Search vendor "Redhat" for product "Quay" | 3.0.0 Search vendor "Redhat" for product "Quay" and version "3.0.0" | - |
Affected
| ||||||
| Redhat Search vendor "Redhat" | Software Collections Search vendor "Redhat" for product "Software Collections" | 1.0 Search vendor "Redhat" for product "Software Collections" and version "1.0" | - |
Affected
| ||||||
| Redhat Search vendor "Redhat" | Enterprise Linux Search vendor "Redhat" for product "Enterprise Linux" | 8.0 Search vendor "Redhat" for product "Enterprise Linux" and version "8.0" | - |
Affected
| ||||||
| Oracle Search vendor "Oracle" | Communications Element Manager Search vendor "Oracle" for product "Communications Element Manager" | 8.0.0 Search vendor "Oracle" for product "Communications Element Manager" and version "8.0.0" | - |
Affected
| ||||||
| Oracle Search vendor "Oracle" | Communications Element Manager Search vendor "Oracle" for product "Communications Element Manager" | 8.1.0 Search vendor "Oracle" for product "Communications Element Manager" and version "8.1.0" | - |
Affected
| ||||||
| Oracle Search vendor "Oracle" | Communications Element Manager Search vendor "Oracle" for product "Communications Element Manager" | 8.1.1 Search vendor "Oracle" for product "Communications Element Manager" and version "8.1.1" | - |
Affected
| ||||||
| Oracle Search vendor "Oracle" | Communications Element Manager Search vendor "Oracle" for product "Communications Element Manager" | 8.2.0 Search vendor "Oracle" for product "Communications Element Manager" and version "8.2.0" | - |
Affected
| ||||||
| Oracle Search vendor "Oracle" | Graalvm Search vendor "Oracle" for product "Graalvm" | 19.2.0 Search vendor "Oracle" for product "Graalvm" and version "19.2.0" | enterprise |
Affected
| ||||||
| Oracle Search vendor "Oracle" | Instantis Enterprisetrack Search vendor "Oracle" for product "Instantis Enterprisetrack" | >= 17.1 <= 17.3 Search vendor "Oracle" for product "Instantis Enterprisetrack" and version " >= 17.1 <= 17.3" | - |
Affected
| ||||||
| Oracle Search vendor "Oracle" | Retail Xstore Point Of Service Search vendor "Oracle" for product "Retail Xstore Point Of Service" | 7.1 Search vendor "Oracle" for product "Retail Xstore Point Of Service" and version "7.1" | - |
Affected
| ||||||
| Mcafee Search vendor "Mcafee" | Web Gateway Search vendor "Mcafee" for product "Web Gateway" | >= 7.7.2.0 < 7.7.2.24 Search vendor "Mcafee" for product "Web Gateway" and version " >= 7.7.2.0 < 7.7.2.24" | - |
Affected
| ||||||
| Mcafee Search vendor "Mcafee" | Web Gateway Search vendor "Mcafee" for product "Web Gateway" | >= 7.8.2.0 < 7.8.2.13 Search vendor "Mcafee" for product "Web Gateway" and version " >= 7.8.2.0 < 7.8.2.13" | - |
Affected
| ||||||
| Mcafee Search vendor "Mcafee" | Web Gateway Search vendor "Mcafee" for product "Web Gateway" | >= 8.1.0 < 8.2.0 Search vendor "Mcafee" for product "Web Gateway" and version " >= 8.1.0 < 8.2.0" | - |
Affected
| ||||||
| Netapp Search vendor "Netapp" | Clustered Data Ontap Search vendor "Netapp" for product "Clustered Data Ontap" | - | - |
Affected
| ||||||
| Nodejs Search vendor "Nodejs" | Node.js Search vendor "Nodejs" for product "Node.js" | >= 8.0.0 <= 8.8.1 Search vendor "Nodejs" for product "Node.js" and version " >= 8.0.0 <= 8.8.1" | - |
Affected
| ||||||
| Nodejs Search vendor "Nodejs" | Node.js Search vendor "Nodejs" for product "Node.js" | >= 8.9.0 < 8.16.1 Search vendor "Nodejs" for product "Node.js" and version " >= 8.9.0 < 8.16.1" | lts |
Affected
| ||||||
| Nodejs Search vendor "Nodejs" | Node.js Search vendor "Nodejs" for product "Node.js" | >= 10.0.0 <= 10.12.0 Search vendor "Nodejs" for product "Node.js" and version " >= 10.0.0 <= 10.12.0" | - |
Affected
| ||||||
| Nodejs Search vendor "Nodejs" | Node.js Search vendor "Nodejs" for product "Node.js" | >= 10.13.0 < 10.16.3 Search vendor "Nodejs" for product "Node.js" and version " >= 10.13.0 < 10.16.3" | lts |
Affected
| ||||||
| Nodejs Search vendor "Nodejs" | Node.js Search vendor "Nodejs" for product "Node.js" | >= 12.0.0 < 12.8.1 Search vendor "Nodejs" for product "Node.js" and version " >= 12.0.0 < 12.8.1" | - |
Affected
| ||||||