Excessive Platform Resource Consumption within a Loop in Kubernetes
Date: 2021-12
Affected: go/github.com/go-yaml/yaml, go/gopkg.in/yaml.v2
Attack vector: other
Category: vulnerability-disclosure
Severity: Medium
CVE: CVE-2019-11254
CWE: CWE-1050
CVSS: 6.5 (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H)

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.


Mitigations:

Architectural layers (MAESTRO):