CVE-2019-11254

Kubernetes API Server denial of service vulnerability from malicious YAML payloads

Severity Score

6.5

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

The Kubernetes API Server component in versions 1.1-1.14, and versions prior to 1.15.10, 1.16.7 and 1.17.3 allows an authorized user who sends malicious YAML payloads to cause the kube-apiserver to consume excessive CPU cycles while parsing YAML.

El componente Kubernetes API Server en versiones 1.1-1.14 y versiones anteriores a 1.15.10, 1.16.7 y 1.17.3, permite a un usuario autorizado que envía cargas maliciosas de YAML causar que el kube-apiserver consuma ciclos de CPU excesivos mientras analiza YAML.

Red Hat OpenShift Container Platform is Red Hat's cloud computing Kubernetes application platform solution designed for on-premise or private cloud deployments. Issues addressed include code execution, cross site scripting, denial of service, and man-in-the-middle vulnerabilities.

*Credits: Mike Danese of Google

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

Attack Vector

Network

Attack Complexity

Low

Authentication

Single

Confidentiality

None

Integrity

None

Availability

Partial

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2019-04-17 CVE Reserved
2020-04-01 CVE Published
2024-09-16 CVE Updated
2025-03-30 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-400: Uncontrolled Resource Consumption
CWE-1050: Excessive Platform Resource Consumption within a Loop

CAPEC

References (5)

URL	Tag	Source
https://github.com/kubernetes/kubernetes/issues/89535	Third Party Advisory
https://groups.google.com/d/msg/kubernetes-announce/ALL9s73E5ck/4yHe8J-PBAAJ	Third Party Advisory
https://security.netapp.com/advisory/ntap-20200413-0003	Third Party Advisory

URL	Date	SRC

URL	Date	SRC

URL	Date	SRC
https://access.redhat.com/security/cve/CVE-2019-11254	2020-06-18
https://bugzilla.redhat.com/show_bug.cgi?id=1819486	2020-06-18

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"				< 1.15.10 Search vendor "Kubernetes" for product "Kubernetes" and version " < 1.15.10"		-		Affected
Kubernetes Search vendor "Kubernetes"		Kubernetes Search vendor "Kubernetes" for product "Kubernetes"				>= 1.16.0 < 1.16.7 Search vendor "Kubernetes" for product "Kubernetes" and version " >= 1.16.0 < 1.16.7"		-		Affected
Kubernetes Search vendor "Kubernetes"		Kubernetes Search vendor "Kubernetes" for product "Kubernetes"				>= 1.17.0 < 1.17.3 Search vendor "Kubernetes" for product "Kubernetes" and version " >= 1.17.0 < 1.17.3"		-		Affected