CVE-2019-11253
Kubernetes API Server JSON/YAML parsing vulnerable to resource exhaustion attack
Severity Score
Exploit Likelihood
Affected Versions
Public Exploits
1Exploited in Wild
-Decision
Descriptions
Improper input validation in the Kubernetes API server in versions v1.0-1.12 and versions prior to v1.13.12, v1.14.8, v1.15.5, and v1.16.2 allows authorized users to send malicious YAML or JSON payloads, causing the API server to consume excessive CPU or memory, potentially crashing and becoming unavailable. Prior to v1.14.0, default RBAC policy authorized anonymous users to submit requests that could trigger this vulnerability. Clusters upgraded from a version prior to v1.14.0 keep the more permissive policy by default for backwards compatibility.
La comprobación de entrada inapropiada en el servidor API de Kubernetes en las versiones v1.0 hasta 1.12 y versiones anteriores a v1.13.12, v1.14.8, v1.15.5 y v1.16.2, permite a los usuarios autorizados enviar cargas maliciosas de YAML o JSON, causando que el servidor API consuma demasiada CPU o memoria, fallando potencialmente y dejando de estar disponible. En versiones anteriores a v1.14.0, la política predeterminada de RBAC autorizaba a los usuarios anónimos para enviar peticiones que pudieran desencadenar esta vulnerabilidad. Los clústeres actualizados desde una versión anterior a v1.14.0 mantienen la política más permisiva por defecto para la compatibilidad con versiones anteriores.
A flaw was found kubernetes. The parsing of YAML manifests by the Kubernetes API server could lead to a denial-of-service attack leaving it vulnerable to an instance of a "billion laughs" attack. The highest threat from this vulnerability is to system availability.
CVSS Scores
SSVC
- Decision:-
Timeline
- 2019-04-17 CVE Reserved
- 2019-10-16 CVE Published
- 2024-09-16 CVE Updated
- 2024-09-16 First Exploit
- 2024-10-10 EPSS Updated
- ---------- Exploited in Wild
- ---------- KEV Due Date
CWE
- CWE-20: Improper Input Validation
- CWE-400: Uncontrolled Resource Consumption
- CWE-776: Improper Restriction of Recursive Entity References in DTDs ('XML Entity Expansion')
CAPEC
References (8)
| URL | Tag | Source |
|---|---|---|
| https://groups.google.com/forum/#%21topic/kubernetes-security-announce/jk8polzSUxs | Mailing List | |
| https://security.netapp.com/advisory/ntap-20191031-0006 | Third Party Advisory |
|
| URL | Date | SRC |
|---|---|---|
| https://github.com/kubernetes/kubernetes/issues/83253 | 2024-09-16 |
| URL | Date | SRC |
|---|
| URL | Date | SRC |
|---|---|---|
| https://access.redhat.com/errata/RHSA-2019:3239 | 2023-11-07 | |
| https://access.redhat.com/errata/RHSA-2019:3811 | 2023-11-07 | |
| https://access.redhat.com/errata/RHSA-2019:3905 | 2023-11-07 | |
| https://access.redhat.com/security/cve/CVE-2019-11253 | 2022-05-11 | |
| https://bugzilla.redhat.com/show_bug.cgi?id=1757701 | 2022-05-11 |
Affected Vendors, Products, and Versions
| Vendor | Product | Version | Other | Status | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Vendor | Product | Version | Other | Status | <-- --> | Vendor | Product | Version | Other | Status |
| Kubernetes Search vendor "Kubernetes" | Kubernetes Search vendor "Kubernetes" for product "Kubernetes" | >= 1.1.0 <= 1.12.10 Search vendor "Kubernetes" for product "Kubernetes" and version " >= 1.1.0 <= 1.12.10" | - |
Affected
| ||||||
| Kubernetes Search vendor "Kubernetes" | Kubernetes Search vendor "Kubernetes" for product "Kubernetes" | >= 1.13.0 < 1.13.2 Search vendor "Kubernetes" for product "Kubernetes" and version " >= 1.13.0 < 1.13.2" | - |
Affected
| ||||||
| Kubernetes Search vendor "Kubernetes" | Kubernetes Search vendor "Kubernetes" for product "Kubernetes" | >= 1.14.0 < 1.14.8 Search vendor "Kubernetes" for product "Kubernetes" and version " >= 1.14.0 < 1.14.8" | - |
Affected
| ||||||
| Kubernetes Search vendor "Kubernetes" | Kubernetes Search vendor "Kubernetes" for product "Kubernetes" | >= 1.15.0 < 1.15.5 Search vendor "Kubernetes" for product "Kubernetes" and version " >= 1.15.0 < 1.15.5" | - |
Affected
| ||||||
| Kubernetes Search vendor "Kubernetes" | Kubernetes Search vendor "Kubernetes" for product "Kubernetes" | >= 1.16.0 < 1.16.2 Search vendor "Kubernetes" for product "Kubernetes" and version " >= 1.16.0 < 1.16.2" | - |
Affected
| ||||||
| Redhat Search vendor "Redhat" | Openshift Container Platform Search vendor "Redhat" for product "Openshift Container Platform" | 3.9 Search vendor "Redhat" for product "Openshift Container Platform" and version "3.9" | - |
Affected
| ||||||
| Redhat Search vendor "Redhat" | Openshift Container Platform Search vendor "Redhat" for product "Openshift Container Platform" | 3.10 Search vendor "Redhat" for product "Openshift Container Platform" and version "3.10" | - |
Affected
| ||||||
| Redhat Search vendor "Redhat" | Openshift Container Platform Search vendor "Redhat" for product "Openshift Container Platform" | 3.11 Search vendor "Redhat" for product "Openshift Container Platform" and version "3.11" | - |
Affected
| ||||||