CVE-2019-11253 (GCVE-0-2019-11253)

Vulnerability from cvelistv5 – Published: 2019-10-17 15:40 – Updated: 2024-09-16 23:21
VLAI
Title
Kubernetes API Server JSON/YAML parsing vulnerable to resource exhaustion attack
Summary
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.
Severity
7.5 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CWE
  • CWE-20 - Improper Input Validation
Assigner
References
Impacted products
Vendor Product Version
Kubernetes Kubernetes Affected: 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
Create a notification for this product.
Date Public
2019-09-27 00:00
Credits
Rory McCune
Show details on NVD website
To clipboard 

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      "cve": "CVE-2019-11253",
      "id": "CVE-2019-11253",
      "initial_release_date": "2019-09-28T00:00:00+00:00",
      "product_status:fixed": "113",
      "product_status:known_affected": "3",
      "product_status:known_not_affected": "6",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kubernetes: YAML parsing vulnerable to \"Billion Laughs\" attack, allowing for remote denial of service",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2019/cve-2019-11253.json",
      "version": "3"
    }
  }
}



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Tags
Taxonomy of the tags.





Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.