CVE-2019-11253 (High) detected in github.com/kubernetes/client-go/pkg/util/json-v2.0.0

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CVE-2019-11253 - High Severity Vulnerability

Vulnerable Library - github.com/kubernetes/client-go/pkg/util/json-v2.0.0

Go client for Kubernetes.

Dependency Hierarchy:

• github.com/kubernetes/client-go-v2.0.0 (Root Library)
  • github.com/kubernetes/client-go-v2.0.0
    • github.com/kubernetes/client-go-v2.0.0
      • github.com/kubernetes/client-go/pkg/api-v2.0.0
        • github.com/kubernetes/client-go/pkg/apimachinery/announced-v2.0.0
          • github.com/kubernetes/client-go/pkg/runtime-v2.0.0
            • ❌ github.com/kubernetes/client-go/pkg/util/json-v2.0.0 (Vulnerable Library)

Vulnerability Details

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.

Publish Date: 2019-10-17

URL: CVE-2019-11253

CVSS 3 Score Details (7.5)

Base Score Metrics:

• Exploitability Metrics:
  • Attack Vector: Network
  • Attack Complexity: Low
  • Privileges Required: None
  • User Interaction: None
  • Scope: Unchanged
• Impact Metrics:
  • Confidentiality Impact: None
  • Integrity Impact: None
  • Availability Impact: High

For more information on CVSS3 Scores, click here.

Suggested Fix

Type: Upgrade version

Release Date: 2020-10-02

Fix Resolution: v1.13.12;v1.14.8;v1.15.5;v1.16.2