FKIE_CVE-2023-4785
Vulnerability from fkie_nvd - Published: 2023-09-13 17:15 - Updated: 2026-06-17 06:38
Severity
7.5 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
7.5 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
7.5 (High) - CVSS:3.1/
Summary
Lack of error handling in the TCP server in Google's gRPC starting version 1.23 on posix-compatible platforms (ex. Linux) allows an attacker to cause a denial of service by initiating a significant number of connections with the server. Note that gRPC C++ Python, and Ruby are affected, but gRPC Java, and Go are NOT affected.
References
{
"affected": [
{
"affectedData": [
{
"defaultStatus": "unaffected",
"platforms": [
"Posix-compatible platforms"
],
"product": "gRPC",
"repo": "https://github.com/grpc/grpc",
"vendor": "Google",
"versions": [
{
"lessThan": "1.23",
"status": "unaffected",
"version": "0",
"versionType": "custom"
},
{
"status": "unaffected",
"version": "1.57"
},
{
"changes": [
{
"at": "1.56.2",
"status": "unaffected"
}
],
"lessThanOrEqual": "1.56.1",
"status": "affected",
"version": "1.56.0",
"versionType": "custom"
},
{
"changes": [
{
"at": "1.55.3",
"status": "unaffected"
}
],
"lessThanOrEqual": "1.55.2",
"status": "affected",
"version": "1.55.0",
"versionType": "custom"
},
{
"changes": [
{
"at": "1.54.3",
"status": "unaffected"
}
],
"lessThanOrEqual": "1.54.2",
"status": "affected",
"version": "1.54.0",
"versionType": "custom"
},
{
"changes": [
{
"at": "1.53.2",
"status": "unaffected"
}
],
"lessThanOrEqual": "1.53.1",
"status": "affected",
"version": "1.53.0",
"versionType": "custom"
}
]
}
],
"source": "cve-coordination@google.com"
},
{
"affectedData": [
{
"cpes": [
"cpe:2.3:a:grpc:grpc:*:*:*:*:*:*:*:*"
],
"defaultStatus": "unknown",
"product": "grpc",
"vendor": "grpc",
"versions": [
{
"lessThan": "1.23",
"status": "affected",
"version": "0",
"versionType": "custom"
},
{
"status": "affected",
"version": "1.57"
},
{
"lessThanOrEqual": "1.56.1",
"status": "affected",
"version": "1.56.0",
"versionType": "custom"
},
{
"lessThanOrEqual": "155.2",
"status": "affected",
"version": "1.55.0",
"versionType": "custom"
},
{
"lessThanOrEqual": "1.54.2",
"status": "affected",
"version": "1.54.0",
"versionType": "custom"
},
{
"lessThanOrEqual": "1.53.1",
"status": "affected",
"version": "1.53.0",
"versionType": "custom"
}
]
}
],
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0"
}
],
"configurations": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:a:grpc:grpc:*:*:*:*:*:-:*:*",
"matchCriteriaId": "988AD4A4-5F77-4474-B06B-7677D748F1AC",
"versionEndExcluding": "1.53.2",
"versionStartIncluding": "1.23.0",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:grpc:grpc:*:*:*:*:*:-:*:*",
"matchCriteriaId": "1A6B7840-8878-4F83-977A-1AF53E103F51",
"versionEndExcluding": "1.54.3",
"versionStartIncluding": "1.54.0",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:grpc:grpc:*:*:*:*:*:-:*:*",
"matchCriteriaId": "75EDD526-0BB3-43B4-9158-B3D9593E7368",
"versionEndExcluding": "1.55.3",
"versionStartIncluding": "1.55.0",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:grpc:grpc:1.56.0:*:*:*:*:-:*:*",
"matchCriteriaId": "DB59E93E-4F0B-49D7-AD20-AC7B3A151195",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "Lack of error handling in the TCP server in Google\u0027s gRPC starting version 1.23 on posix-compatible platforms (ex. Linux) allows an attacker to cause a denial of service by initiating a significant number of connections with the server. Note that gRPC C++ Python, and Ruby are affected, but gRPC Java, and Go are NOT affected."
},
{
"lang": "es",
"value": "La falta de manejo de errores en el servidor TCP en gRPC de Google a partir de la versi\u00f3n 1.23 en plataformas compatibles con posix (por ejemplo, Linux) permite a un atacante provocar una denegaci\u00f3n de servicio al iniciar una cantidad significativa de conexiones con el servidor. Tenga en cuenta que gRPC C++ Python y Ruby se ven afectados, pero gRPC Java y Go NO se ven afectados."
}
],
"id": "CVE-2023-4785",
"lastModified": "2026-06-17T06:38:35.567",
"metrics": {
"cvssMetricV31": [
{
"cvssData": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 7.5,
"baseSeverity": "HIGH",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"version": "3.1"
},
"exploitabilityScore": 3.9,
"impactScore": 3.6,
"source": "cve-coordination@google.com",
"type": "Secondary"
},
{
"cvssData": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 7.5,
"baseSeverity": "HIGH",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"version": "3.1"
},
"exploitabilityScore": 3.9,
"impactScore": 3.6,
"source": "nvd@nist.gov",
"type": "Primary"
}
],
"ssvcV203": [
{
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"ssvcData": {
"id": "CVE-2023-4785",
"options": [
{
"exploitation": "none"
},
{
"automatable": "yes"
},
{
"technicalImpact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2024-09-25T18:02:01.004344Z",
"version": "2.0.3"
}
}
]
},
"published": "2023-09-13T17:15:10.227",
"references": [
{
"source": "cve-coordination@google.com",
"tags": [
"Issue Tracking",
"Patch"
],
"url": "https://github.com/grpc/grpc/pull/33656"
},
{
"source": "cve-coordination@google.com",
"tags": [
"Issue Tracking"
],
"url": "https://github.com/grpc/grpc/pull/33667"
},
{
"source": "cve-coordination@google.com",
"tags": [
"Issue Tracking"
],
"url": "https://github.com/grpc/grpc/pull/33669"
},
{
"source": "cve-coordination@google.com",
"tags": [
"Issue Tracking"
],
"url": "https://github.com/grpc/grpc/pull/33670"
},
{
"source": "cve-coordination@google.com",
"tags": [
"Issue Tracking"
],
"url": "https://github.com/grpc/grpc/pull/33672"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Issue Tracking",
"Patch"
],
"url": "https://github.com/grpc/grpc/pull/33656"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Issue Tracking"
],
"url": "https://github.com/grpc/grpc/pull/33667"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Issue Tracking"
],
"url": "https://github.com/grpc/grpc/pull/33669"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Issue Tracking"
],
"url": "https://github.com/grpc/grpc/pull/33670"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Issue Tracking"
],
"url": "https://github.com/grpc/grpc/pull/33672"
}
],
"sourceIdentifier": "cve-coordination@google.com",
"vulnStatus": "Modified",
"weaknesses": [
{
"description": [
{
"lang": "en",
"value": "CWE-248"
}
],
"source": "cve-coordination@google.com",
"type": "Secondary"
},
{
"description": [
{
"lang": "en",
"value": "NVD-CWE-noinfo"
}
],
"source": "nvd@nist.gov",
"type": "Primary"
}
]
}
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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.
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.
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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.
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