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National Vulnerability Database

National Vulnerability Database

NVD

National Vulnerability Database
  1. Vulnerabilities

CVE-2019-11253 Detail

Description

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.


Severity

 


CVSS 3.x Severity and Metrics:

NIST CVSS score matches with CNA score
CNA:  Kubernetes
Base Score:  7.5 HIGH
Vector:  CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H


NVD Analysts use publicly available information to associate vector strings and CVSS scores. We also display any CVSS information provided within the CVE List from the CNA.

Note: The NVD and the CNA have provided the same score. When this occurs only the CNA information is displayed, but the Acceptance Level icon for the CNA is given a checkmark to signify NVD concurrence.

References to Advisories, Solutions, and Tools

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Hyperlink Resource
https://access.redhat.com/errata/RHSA-2019:3239 Third Party Advisory 
https://access.redhat.com/errata/RHSA-2019:3811 Third Party Advisory 
https://access.redhat.com/errata/RHSA-2019:3905 Third Party Advisory 
https://github.com/kubernetes/kubernetes/issues/83253 Exploit  Issue Tracking  Mitigation  Third Party Advisory 
https://groups.google.com/forum/#!topic/kubernetes-security-announce/jk8polzSUxs Mailing List  Third Party Advisory 
https://security.netapp.com/advisory/ntap-20191031-0006/ Third Party Advisory 

Weakness Enumeration

CWE-ID CWE Name Source
CWE-776 Improper Restriction of Recursive Entity References in DTDs ('XML Entity Expansion') cwe source acceptance level NIST  
CWE-20 Improper Input Validation Reference acceptance level Kubernetes  

Known Affected Software Configurations Switch to CPE 2.2

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Change History

6 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2019-11253
NVD Published Date:
10/17/2019
NVD Last Modified:
10/02/2020
Source:
Kubernetes