CVE-2019-11253 (GCVE-0-2019-11253)
Vulnerability from cvelistv5 – Published: 2019-10-17 15:40 – Updated: 2024-09-16 23:21
VLAI
EPSS
VEX
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)
CWE
- CWE-20 - Improper Input Validation
Assigner
References
6 references
| URL | Tags |
|---|---|
| https://github.com/kubernetes/kubernetes/issues/83253 | x_refsource_CONFIRM |
| https://groups.google.com/forum/#%21topic/kuberne… | mailing-listx_refsource_MLIST |
| https://access.redhat.com/errata/RHSA-2019:3239 | vendor-advisoryx_refsource_REDHAT |
| https://security.netapp.com/advisory/ntap-2019103… | x_refsource_CONFIRM |
| https://access.redhat.com/errata/RHSA-2019:3811 | vendor-advisoryx_refsource_REDHAT |
| https://access.redhat.com/errata/RHSA-2019:3905 | vendor-advisoryx_refsource_REDHAT |
Impacted products
1 product
| Vendor | Product | Version | CPE status | |
|---|---|---|---|---|
| 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 |
guessed |
Date Public
2019-09-27 00:00
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anteriores.\"}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"jordan@liggitt.net\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H\",\"baseScore\":7.5,\"baseSeverity\":\"HIGH\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":3.9,\"impactScore\":3.6},{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H\",\"baseScore\":7.5,\"baseSeverity\":\"HIGH\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":3.9,\"impactScore\":3.6}],\"cvssMetricV2\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"2.0\",\"vectorString\":\"AV:N/AC:L/Au:N/C:N/I:N/A:P\",\"baseScore\":5.0,\"accessVector\":\"NETWORK\",\"accessComplexity\":\"LOW\",\"authentication\":\"NONE\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"PARTIAL\"},\"baseSeverity\":\"MEDIUM\",\"exploitabilityScore\":10.0,\"impactScore\":2.9,\"acInsufInfo\":false,\"obtainAllPrivilege\":false,\"obtainUserPrivilege\":false,\"obtainOtherPrivilege\":false,\"userInteractionRequired\":false}]},\"weaknesses\":[{\"source\":\"jordan@liggitt.net\",\"type\":\"Secondary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-20\"}]},{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-776\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:kubernetes:kubernetes:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"1.1.0\",\"versionEndIncluding\":\"1.12.10\",\"matchCriteriaId\":\"F0820894-56B7-4CB8-AE5C-29639FA59718\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:kubernetes:kubernetes:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"1.13.0\",\"versionEndExcluding\":\"1.13.12\",\"matchCriteriaId\":\"C4C87C13-A72F-4930-88DD-658099449303\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:kubernetes:kubernetes:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"1.14.0\",\"versionEndExcluding\":\"1.14.8\",\"matchCriteriaId\":\"ADA3952E-8133-4E6A-A365-4FD74ABA962C\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:kubernetes:kubernetes:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"1.15.0\",\"versionEndExcluding\":\"1.15.5\",\"matchCriteriaId\":\"F9F7837F-DA69-453E-8B24-1EDF0A5CAB4C\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:kubernetes:kubernetes:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"1.16.0\",\"versionEndExcluding\":\"1.16.2\",\"matchCriteriaId\":\"E1BDF819-871C-4E34-978F-BAFF8D895B84\"}]}]},{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:redhat:openshift_container_platform:3.9:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"309CB6F8-F178-454C-BE97-787F78647C28\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:redhat:openshift_container_platform:3.10:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"4DBCD38F-BBE8-488C-A8C3-5782F191D915\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:redhat:openshift_container_platform:3.11:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"2F87326E-0B56-4356-A889-73D026DB1D4B\"}]}]}],\"references\":[{\"url\":\"https://access.redhat.com/errata/RHSA-2019:3239\",\"source\":\"jordan@liggitt.net\",\"tags\":[\"Third Party Advisory\"]},{\"url\":\"https://access.redhat.com/errata/RHSA-2019:3811\",\"source\":\"jordan@liggitt.net\",\"tags\":[\"Third Party Advisory\"]},{\"url\":\"https://access.redhat.com/errata/RHSA-2019:3905\",\"source\":\"jordan@liggitt.net\",\"tags\":[\"Third Party Advisory\"]},{\"url\":\"https://github.com/kubernetes/kubernetes/issues/83253\",\"source\":\"jordan@liggitt.net\",\"tags\":[\"Exploit\",\"Issue Tracking\",\"Mitigation\",\"Third Party Advisory\"]},{\"url\":\"https://groups.google.com/forum/#%21topic/kubernetes-security-announce/jk8polzSUxs\",\"source\":\"jordan@liggitt.net\",\"tags\":[\"Permissions Required\"]},{\"url\":\"https://security.netapp.com/advisory/ntap-20191031-0006/\",\"source\":\"jordan@liggitt.net\",\"tags\":[\"Third Party Advisory\"]},{\"url\":\"https://access.redhat.com/errata/RHSA-2019:3239\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Third Party Advisory\"]},{\"url\":\"https://access.redhat.com/errata/RHSA-2019:3811\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Third Party Advisory\"]},{\"url\":\"https://access.redhat.com/errata/RHSA-2019:3905\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Third Party Advisory\"]},{\"url\":\"https://github.com/kubernetes/kubernetes/issues/83253\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Exploit\",\"Issue Tracking\",\"Mitigation\",\"Third Party Advisory\"]},{\"url\":\"https://groups.google.com/forum/#%21topic/kubernetes-security-announce/jk8polzSUxs\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Permissions Required\"]},{\"url\":\"https://security.netapp.com/advisory/ntap-20191031-0006/\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Third Party Advisory\"]}]}}",
"redhat_vex": {
"aggregate_severity": "Important",
"current_release_date": "2026-06-27T00:49:10+00:00",
"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"
},
"suse_vex": {
"aggregate_severity": "moderate",
"current_release_date": "2026-08-23T17:02:06Z",
"cve": "CVE-2019-11253",
"id": "CVE-2019-11253",
"initial_release_date": "2023-02-15T04:12:43Z",
"product_status:known_not_affected": "20",
"product_status:recommended": "19",
"source": "SUSE CSAF VEX",
"status": "interim",
"title": "SUSE CVE CVE-2019-11253",
"url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2019-11253.json",
"version": "13"
}
}
}
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
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.
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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
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