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
  National Vulnerability Database SUSE
Base Score 7.5 6.5
Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Access Vector Network Network
Access Complexity Low Low
Privileges Required None None
User Interaction None Required
Scope Unchanged Unchanged
Confidentiality Impact None None
Integrity Impact None None
Availability Impact High High
CVSSv3 Version 3.1 3
SUSE Bugzilla entry: 1152861 [IN_PROGRESS]

SUSE Security Advisories:

List of released packages

Product(s) Fixed package version(s) References
openSUSE Tumbleweed
  • kubernetes-apiserver >= 1.22.2-21.2
  • kubernetes-apiserver-minus1 >= 1.21.5-21.2
  • kubernetes-client >= 1.22.2-21.2
  • kubernetes-controller-manager >= 1.22.2-21.2
  • kubernetes-controller-manager-minus1 >= 1.21.5-21.2
  • kubernetes-coredns >= 1.8.4-21.2
  • kubernetes-coredns-minus1 >= 1.8.0-21.2
  • kubernetes-etcd >= 3.5.0-21.2
  • kubernetes-etcd-minus1 >= 3.4.13-21.2
  • kubernetes-kubeadm >= 1.22.2-21.2
  • kubernetes-kubelet >= 1.22.2-21.2
  • kubernetes-proxy >= 1.22.2-21.2
  • kubernetes-proxy-minus1 >= 1.21.5-21.2
  • kubernetes-scheduler >= 1.22.2-21.2
  • kubernetes-scheduler-minus1 >= 1.21.5-21.2
 Patchnames:
openSUSE Tumbleweed GA kubernetes-apiserver-1.22.2-21.2

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Please note that this evaluation state might be work in progress, incomplete or outdated.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 kubernetes Released
SUSE CaaS Platform 4.0 release-notes-caasp Released
SUSE CaaS Platform 4.5 kubernetes-1.18 In progress
SUSE Container as a Service Platform 1.0 kubernetes Affected
SUSE Container as a Service Platform 2.0 kubernetes Affected
SUSE Enterprise Storage 6 kubernetes Released
SUSE Linux Enterprise High Performance Computing 15 SP1 ESPOS kubernetes Released
SUSE Linux Enterprise High Performance Computing 15 SP1 LTSS kubernetes Released
SUSE Linux Enterprise Module for Containers 15 SP1 kubernetes Released
SUSE Linux Enterprise Module for Public Cloud 12 kubernetes Affected
SUSE Linux Enterprise Server 15 SP1 LTSS kubernetes Released
SUSE Linux Enterprise Server Business Critical Linux 15 SP1 kubernetes Released
SUSE Linux Enterprise Server for SAP Applications 15 SP1 kubernetes Released
SUSE Manager Proxy 4.0 kubernetes Released
SUSE Manager Retail Branch Server 4.0 kubernetes Released
SUSE Manager Server 4.0 kubernetes Released