CVE-2019-11253

Aliases:GHSA-pmqp-h87c-mr78GO-2022-0703
Advisory lineage Upstream: 0 Downstream: 13
Analyzed
Published: 17 Oct 2019, 15:40
Last modified:16 Sept 2024, 23:21

Vulnerability Summary

Overall Risk (default)
high
57/100
CVSS Score
7.5 HIGH
v3.1 (cve.org)
EPSS Score
84.51% CRITICAL
85% probability +5.76%
KEV
Not listed
Ransomware
No reports
Public exploits
1 found
Dark Web
Not detected

Timeline

17 Oct 2019, 15:40
Published
Vulnerability first disclosed
16 Sept 2024, 23:21
Last Modified
Vulnerability information updated

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.

CVSS Metrics

  • v3.1•HIGH•Score: 7.5CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
  • v2.0•MEDIUM•Score: 5AV:N/AC:L/Au:N/C:N/I:N/A:P

EPSS Trends

Current EPSS score: 84.51%• Percentile: 99%

Techniques & Countermeasures

  • CWE-20•Improper Input Validation

    The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.

  • CWE-776•Improper Restriction of Recursive Entity References in DTDs ('XML Entity Expansion')

    The product uses XML documents and allows their structure to be defined with a Document Type Definition (DTD), but it does not properly control the number of recursive definitions of entities.

Affected Systems

  • k8s.io•kubernetes

    ≥ 1.0.0, < 1.13.12 | ≥ 1.14.0, < 1.14.8 | ≥ 1.15.0, < 1.15.5 | ≥ 1.16.0, < 1.16.2

  • kubernetes•kubernetes

    ≥ 1.13.0, < 1.13.2 | prior to 1.13.12 | prior to 1.14.8 | prior to 1.15.5 | prior to 1.16.2 | 1.1 | 1.2 | 1.3 | 1.4 | 1.5 | 1.6 | 1.7 | 1.8 | 1.9 | 1.10 | 1.11 | 1.12 | ≥ 1.1.0, ≤ 1.12.10 | ≥ 1.13.0, < 1.13.12 | ≥ 1.14.0, < 1.14.8 | ≥ 1.15.0, < 1.15.5 | ≥ 1.16.0, < 1.16.2

  • redhat•openshift_container_platform

    3.9 | 3.10 | 3.11

References (13)