Upstream information

CVE-2019-11253 at MITRE

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.

SUSE information

Overall state of this security issue: Running

This issue is currently rated as having moderate severity.

CVSS v2 Scores
  National Vulnerability Database
Base Score 5
Vector AV:N/AC:L/Au:N/C:N/I:N/A:P
Access Vector Network
Access Complexity Low
Authentication None
Confidentiality Impact None
Integrity Impact None
Availability Impact Partial
CVSS v3 Scores
  SUSE
Base Score 6.5
Vector CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Access Vector Network
Access Complexity Low
Privileges Required None
User Interaction Required
Scope Unchanged
Confidentiality Impact None
Integrity Impact None
Availability Impact High
CVSSv3 Version 3
SUSE Bugzilla entry: 1152861 [IN_PROGRESS]

No SUSE Security Announcements cross referenced.


Status of this issue by product and package

Please note that this evaluation state might be work in progress, incomplete or outdated. Also information for service packs in the LTSS phase is only included for issues meeting the LTSS criteria. If in doubt, feel free to contact us for clarification.

Product(s) Source package State
Magnum Orchestration kubernetes Affected
SUSE CaaS Platform 3.0 kubernetes Ignore
SUSE CaaS Platform 4.0 caasp-release Released
SUSE CaaS Platform 4.0 conmon Released
SUSE CaaS Platform 4.0 cri-o Released
SUSE CaaS Platform 4.0 cri-tools Released
SUSE CaaS Platform 4.0 etcd Released
SUSE CaaS Platform 4.0 helm Released
SUSE CaaS Platform 4.0 kubernetes Released
SUSE CaaS Platform 4.0 patterns-caasp-Node-1.15-1.16 Released
SUSE CaaS Platform 4.0 patterns-caasp-Node-1.16 Released
SUSE CaaS Platform 4.0 release-notes-caasp Released
SUSE CaaS Platform 4.0 skuba Released
SUSE Container as a Service Platform 1.0 kubernetes Affected
SUSE Container as a Service Platform 2.0 kubernetes Affected
SUSE Linux Enterprise 12 Module for Public Cloud kubernetes Affected
SUSE Linux Enterprise 15-SP1 Module for Containers kubernetes Released