CVE-2019-9515
Some HTTP/2 implementations are vulnerable to a settings flood, 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 a settings flood, potentially leading to a denial of service. The attacker sends a stream of SETTINGS frames to the peer. Since the RFC requires that the peer reply with one acknowledgement per SETTINGS frame, an empty SETTINGS frame is almost equivalent in behavior to a ping. Depending on how efficiently this data is queued, this can consume excess CPU, memory, or both.
Algunas implementaciones de HTTP / 2 son vulnerables a una inundación de configuraciones, lo que puede conducir a una denegación de servicio. El atacante envía una secuencia de marcos de CONFIGURACIÓN al par. Como el RFC requiere que el igual responda con un acuse de recibo por cuadro de CONFIGURACIÓN, un cuadro de CONFIGURACIÓN vacío es casi equivalente en comportamiento a un ping. Dependiendo de cuán eficientemente se pongan en cola estos datos, esto puede consumir un exceso de CPU, memoria o ambos.
A flaw was found in HTTP/2. Using SETTINGS frames and queuing of SETTINGS ACK frames, a flood could occur resulting in unbounded memory growth. 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
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
- 2024-10-17 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 (40)
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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" | 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 Container Platform Search vendor "Redhat" for product "Openshift Container Platform" | 4.1 Search vendor "Redhat" for product "Openshift Container Platform" and version "4.1" | - |
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" | Openstack Search vendor "Redhat" for product "Openstack" | 14 Search vendor "Redhat" for product "Openstack" and version "14" | - |
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" | Single Sign-on Search vendor "Redhat" for product "Single Sign-on" | 7.3 Search vendor "Redhat" for product "Single Sign-on" and version "7.3" | - |
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" | Graalvm Search vendor "Oracle" for product "Graalvm" | 19.2.0 Search vendor "Oracle" for product "Graalvm" and version "19.2.0" | enterprise |
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
| ||||||
| F5 Search vendor "F5" | Big-ip Local Traffic Manager Search vendor "F5" for product "Big-ip Local Traffic Manager" | >= 11.6.1 < 11.6.5.1 Search vendor "F5" for product "Big-ip Local Traffic Manager" and version " >= 11.6.1 < 11.6.5.1" | - |
Affected
| ||||||
| F5 Search vendor "F5" | Big-ip Local Traffic Manager Search vendor "F5" for product "Big-ip Local Traffic Manager" | >= 12.1.0 < 12.1.5.1 Search vendor "F5" for product "Big-ip Local Traffic Manager" and version " >= 12.1.0 < 12.1.5.1" | - |
Affected
| ||||||
| F5 Search vendor "F5" | Big-ip Local Traffic Manager Search vendor "F5" for product "Big-ip Local Traffic Manager" | >= 13.1.0 < 13.1.3.2 Search vendor "F5" for product "Big-ip Local Traffic Manager" and version " >= 13.1.0 < 13.1.3.2" | - |
Affected
| ||||||
| F5 Search vendor "F5" | Big-ip Local Traffic Manager Search vendor "F5" for product "Big-ip Local Traffic Manager" | >= 14.0.0 < 14.0.1.1 Search vendor "F5" for product "Big-ip Local Traffic Manager" and version " >= 14.0.0 < 14.0.1.1" | - |
Affected
| ||||||
| F5 Search vendor "F5" | Big-ip Local Traffic Manager Search vendor "F5" for product "Big-ip Local Traffic Manager" | >= 14.1.0 < 14.1.2.1 Search vendor "F5" for product "Big-ip Local Traffic Manager" and version " >= 14.1.0 < 14.1.2.1" | - |
Affected
| ||||||
| F5 Search vendor "F5" | Big-ip Local Traffic Manager Search vendor "F5" for product "Big-ip Local Traffic Manager" | >= 15.0.0 < 15.0.1.1 Search vendor "F5" for product "Big-ip Local Traffic Manager" and version " >= 15.0.0 < 15.0.1.1" | - |
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
| ||||||