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CVE-2019-11253

CVE-2019-11253 · Kubernetes API Server JSON/YAML parsing vulnerable to resource exhaustion attack

This page contains facts from public vulnerability sources. Check the original advisory before updating.

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.

CVSS 7.5 · High · EPSS 25.9% · Public exploit · Fix available

Published
Updated

Stack: system · containers

Affected products and versions

  • kubernetes

    Versions
    • prior to 1.13.12: Affected
    • prior to 1.14.8: Affected
    • prior to 1.15.5: Affected
    • prior to 1.16.2: Affected
    • 1.1: Affected
    • 1.2: Affected
    • 1.3: Affected
    • 1.4: Affected
    • 1.5: Affected
    • 1.6: Affected
    • 1.7: Affected
    • 1.8: Affected
    • 1.9: Affected
    • 1.10: Affected
    • 1.11: Affected
    • 1.12: Affected

    No fix published

  • kubernetes Debian:12

    Affected ranges
    • ECOSYSTEM: < 1.17.4-1

    Update to 1.17.4-1

  • kubernetes Debian:13

    Affected ranges
    • ECOSYSTEM: < 1.17.4-1

    Update to 1.17.4-1

  • kubernetes Debian:14

    Affected ranges
    • ECOSYSTEM: < 1.17.4-1

    Update to 1.17.4-1

Original sources

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