CVE-2020-15114 (GCVE-0-2020-15114)
Vulnerability from cvelistv5 – Published: 2020-08-06 22:25 – Updated: 2024-08-04 13:08
VLAI
EPSS
VEX
Title
Denial of Service in etcd
Summary
In etcd before versions 3.3.23 and 3.4.10, the etcd gateway is a simple TCP proxy to allow for basic service discovery and access. However, it is possible to include the gateway address as an endpoint. This results in a denial of service, since the endpoint can become stuck in a loop of requesting itself until there are no more available file descriptors to accept connections on the gateway.
Severity
7.7 (High)
CWE
- CWE-400 - {"CWE-400":"Uncontrolled Resource Consumption"}
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://github.com/etcd-io/etcd/security/advisori… | x_refsource_CONFIRM |
| https://lists.fedoraproject.org/archives/list/pac… | vendor-advisoryx_refsource_FEDORA |
Impacted products
{
"containers": {
"adp": [
{
"providerMetadata": {
"dateUpdated": "2024-08-04T13:08:21.664Z",
"orgId": "af854a3a-2127-422b-91ae-364da2661108",
"shortName": "CVE"
},
"references": [
{
"tags": [
"x_refsource_CONFIRM",
"x_transferred"
],
"url": "https://github.com/etcd-io/etcd/security/advisories/GHSA-2xhq-gv6c-p224"
},
{
"name": "FEDORA-2020-cd43b84c16",
"tags": [
"vendor-advisory",
"x_refsource_FEDORA",
"x_transferred"
],
"url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/L6B6R43Y7M3DCHWK3L3UVGE2K6WWECMP/"
}
],
"title": "CVE Program Container"
}
],
"cna": {
"affected": [
{
"product": "etcd",
"vendor": "etcd-io",
"versions": [
{
"status": "affected",
"version": "\u003c 3.3.23"
},
{
"status": "affected",
"version": "\u003c 3.4.10"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "In etcd before versions 3.3.23 and 3.4.10, the etcd gateway is a simple TCP proxy to allow for basic service discovery and access. However, it is possible to include the gateway address as an endpoint. This results in a denial of service, since the endpoint can become stuck in a loop of requesting itself until there are no more available file descriptors to accept connections on the gateway."
}
],
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 7.7,
"baseSeverity": "HIGH",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "LOW",
"scope": "CHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H",
"version": "3.1"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-400",
"description": "{\"CWE-400\":\"Uncontrolled Resource Consumption\"}",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2021-01-04T02:06:14.000Z",
"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"shortName": "GitHub_M"
},
"references": [
{
"tags": [
"x_refsource_CONFIRM"
],
"url": "https://github.com/etcd-io/etcd/security/advisories/GHSA-2xhq-gv6c-p224"
},
{
"name": "FEDORA-2020-cd43b84c16",
"tags": [
"vendor-advisory",
"x_refsource_FEDORA"
],
"url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/L6B6R43Y7M3DCHWK3L3UVGE2K6WWECMP/"
}
],
"source": {
"advisory": "GHSA-2xhq-gv6c-p224",
"discovery": "UNKNOWN"
},
"title": "Denial of Service in etcd",
"x_legacyV4Record": {
"CVE_data_meta": {
"ASSIGNER": "security-advisories@github.com",
"ID": "CVE-2020-15114",
"STATE": "PUBLIC",
"TITLE": "Denial of Service in etcd"
},
"affects": {
"vendor": {
"vendor_data": [
{
"product": {
"product_data": [
{
"product_name": "etcd",
"version": {
"version_data": [
{
"version_value": "\u003c 3.3.23"
},
{
"version_value": "\u003c 3.4.10"
}
]
}
}
]
},
"vendor_name": "etcd-io"
}
]
}
},
"data_format": "MITRE",
"data_type": "CVE",
"data_version": "4.0",
"description": {
"description_data": [
{
"lang": "eng",
"value": "In etcd before versions 3.3.23 and 3.4.10, the etcd gateway is a simple TCP proxy to allow for basic service discovery and access. However, it is possible to include the gateway address as an endpoint. This results in a denial of service, since the endpoint can become stuck in a loop of requesting itself until there are no more available file descriptors to accept connections on the gateway."
}
]
},
"impact": {
"cvss": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 7.7,
"baseSeverity": "HIGH",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "LOW",
"scope": "CHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H",
"version": "3.1"
}
},
"problemtype": {
"problemtype_data": [
{
"description": [
{
"lang": "eng",
"value": "{\"CWE-400\":\"Uncontrolled Resource Consumption\"}"
}
]
}
]
},
"references": {
"reference_data": [
{
"name": "https://github.com/etcd-io/etcd/security/advisories/GHSA-2xhq-gv6c-p224",
"refsource": "CONFIRM",
"url": "https://github.com/etcd-io/etcd/security/advisories/GHSA-2xhq-gv6c-p224"
},
{
"name": "FEDORA-2020-cd43b84c16",
"refsource": "FEDORA",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/L6B6R43Y7M3DCHWK3L3UVGE2K6WWECMP/"
}
]
},
"source": {
"advisory": "GHSA-2xhq-gv6c-p224",
"discovery": "UNKNOWN"
}
}
}
},
"cveMetadata": {
"assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"assignerShortName": "GitHub_M",
"cveId": "CVE-2020-15114",
"datePublished": "2020-08-06T22:25:12.000Z",
"dateReserved": "2020-06-25T00:00:00.000Z",
"dateUpdated": "2024-08-04T13:08:21.664Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.1",
"vulnerability-lookup:meta": {
"epss": {
"cve": "CVE-2020-15114",
"date": "2026-09-19",
"epss": "0.01206",
"percentile": "0.66949"
},
"microsoft_vex": {
"current_release_date": "2021-12-16T00:00:00.000Z",
"cve": "CVE-2020-15114",
"id": "msrc_CVE-2020-15114",
"initial_release_date": "2020-08-02T00:00:00.000Z",
"product_status:fixed": "1",
"product_status:known_affected": "1",
"source": "Microsoft CSAF VEX",
"status": "final",
"title": "Denial of Service in etcd",
"url": "https://msrc.microsoft.com/csaf/vex/2020/msrc_cve-2020-15114.json",
"version": "1"
},
"nvd": {
"cve": {
"configurations": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:a:redhat:etcd:*:*:*:*:*:*:*:*",
"matchCriteriaId": "44C58F4F-02EB-40DC-86CB-98D027FE7F84",
"versionEndExcluding": "3.3.23",
"versionStartIncluding": "3.3.0",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:redhat:etcd:*:*:*:*:*:*:*:*",
"matchCriteriaId": "362ED3D1-DC14-4BC6-A565-39EA4CA7B061",
"versionEndExcluding": "3.4.10",
"versionStartIncluding": "3.4.0",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
},
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:o:fedoraproject:fedora:32:*:*:*:*:*:*:*",
"matchCriteriaId": "36D96259-24BD-44E2-96D9-78CE1D41F956",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "In etcd before versions 3.3.23 and 3.4.10, the etcd gateway is a simple TCP proxy to allow for basic service discovery and access. However, it is possible to include the gateway address as an endpoint. This results in a denial of service, since the endpoint can become stuck in a loop of requesting itself until there are no more available file descriptors to accept connections on the gateway."
},
{
"lang": "es",
"value": "En etcd anteriores a las versiones 3.3.23 y 3.4.10, la puerta de enlace etcd es un proxy TCP simple para permitir el acceso y detecci\u00f3n de servicios b\u00e1sicos. Sin embargo, es posible incluir la direcci\u00f3n de la puerta de enlace como endpoint. Esto resulta en una denegaci\u00f3n de servicio, ya que el endpoint puede quedarse atrapado en un bucle de petici\u00f3n hasta que no haya m\u00e1s descriptores de archivo disponibles para aceptar conexiones en la puerta de enlace"
}
],
"id": "CVE-2020-15114",
"lastModified": "2024-11-21T05:04:50.810",
"metrics": {
"cvssMetricV2": [
{
"acInsufInfo": false,
"baseSeverity": "MEDIUM",
"cvssData": {
"accessComplexity": "LOW",
"accessVector": "NETWORK",
"authentication": "SINGLE",
"availabilityImpact": "PARTIAL",
"baseScore": 4.0,
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"vectorString": "AV:N/AC:L/Au:S/C:N/I:N/A:P",
"version": "2.0"
},
"exploitabilityScore": 8.0,
"impactScore": 2.9,
"obtainAllPrivilege": false,
"obtainOtherPrivilege": false,
"obtainUserPrivilege": false,
"source": "nvd@nist.gov",
"type": "Primary",
"userInteractionRequired": false
}
],
"cvssMetricV31": [
{
"cvssData": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 7.7,
"baseSeverity": "HIGH",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "LOW",
"scope": "CHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H",
"version": "3.1"
},
"exploitabilityScore": 3.1,
"impactScore": 4.0,
"source": "security-advisories@github.com",
"type": "Secondary"
},
{
"cvssData": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 7.7,
"baseSeverity": "HIGH",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "LOW",
"scope": "CHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H",
"version": "3.1"
},
"exploitabilityScore": 3.1,
"impactScore": 4.0,
"source": "nvd@nist.gov",
"type": "Primary"
}
]
},
"published": "2020-08-06T23:15:11.517",
"references": [
{
"source": "security-advisories@github.com",
"tags": [
"Third Party Advisory"
],
"url": "https://github.com/etcd-io/etcd/security/advisories/GHSA-2xhq-gv6c-p224"
},
{
"source": "security-advisories@github.com",
"url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/L6B6R43Y7M3DCHWK3L3UVGE2K6WWECMP/"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Third Party Advisory"
],
"url": "https://github.com/etcd-io/etcd/security/advisories/GHSA-2xhq-gv6c-p224"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/L6B6R43Y7M3DCHWK3L3UVGE2K6WWECMP/"
}
],
"sourceIdentifier": "security-advisories@github.com",
"vulnStatus": "Modified",
"weaknesses": [
{
"description": [
{
"lang": "en",
"value": "CWE-400"
}
],
"source": "security-advisories@github.com",
"type": "Secondary"
},
{
"description": [
{
"lang": "en",
"value": "CWE-772"
}
],
"source": "nvd@nist.gov",
"type": "Primary"
}
]
}
},
"redhat_vex": {
"aggregate_severity": "Moderate",
"current_release_date": "2026-03-27T06:15:46+00:00",
"cve": "CVE-2020-15114",
"id": "CVE-2020-15114",
"initial_release_date": "2020-08-05T00:00:00+00:00",
"product_status:fixed": "10",
"product_status:known_affected": "4",
"product_status:known_not_affected": "384",
"source": "Red Hat CSAF VEX",
"status": "final",
"title": "etcd: gateway can include itself as an endpoint resulting in resource exhaustion and leads to DoS",
"url": "https://security.access.redhat.com/data/csaf/v2/vex/2020/cve-2020-15114.json",
"version": "3"
}
}
}
Loading…
Loading…
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.
Loading…
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.
Browse all ATT&CK techniques and the vulnerabilities related to each.
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.
Browse all ATT&CK techniques and the vulnerabilities related to each.
Loading…
Related by attack behaviour
Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.
Loading…