CVE-2019-1002100 Information

Description

In all Kubernetes versions prior to v1.11.8 v1.12.6 and v1.13.4 users that are authorized to make patch requests to the Kubernetes API Server can send a specially crafted patch of type \json-patch\ (e.g. kubectl patch --type json or \Content-Type: application/json-patch+json\) that consumes excessive resources while processing causing a Denial of Service on the API Server.

CVSS Vector

CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Reference

http://www.securityfocus.com/bid/107290 https://access.redhat.com/errata/RHSA-2019:1851 https://access.redhat.com/errata/RHSA-2019:3239 https://github.com/kubernetes/kubernetes/issues/74534 https://groups.google.com/forum/!topic/kubernetes-announce/vmUUNkYfG9g https://security.netapp.com/advisory/ntap-20190416-0002/

Attack Complexity

LOW

Privileges Required

LOW

User Interaction Required

LOW

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

NONE

Availability Impact

NONE

Base Score

HIGH

Base Severity

6.5