CVE-2021-36154

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{"affected": [{"affectedData": [{"product": "n/a", "vendor": "n/a", "versions": [{"status": "affected", "version": "n/a"}]}], "source": "cve@mitre.org"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:linuxfoundation:grpc_swift:1.0.0:*:*:*:*:*:*:*", "matchCriteriaId": "54DBEB87-579F-4445-AE7A-568ABC156B98", "vulnerable": true}, {"criteria": "cpe:2.3:a:linuxfoundation:grpc_swift:1.1.0:*:*:*:*:*:*:*", "matchCriteriaId": "B578662F-9EBE-4555-8EC2-929ECB2F8638", "vulnerable": true}, {"criteria": "cpe:2.3:a:linuxfoundation:grpc_swift:1.1.1:*:*:*:*:*:*:*", "matchCriteriaId": "86FC8B42-F425-4F74-A992-E5739997C1C5", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "HTTP2ToRawGRPCServerCodec in gRPC Swift 1.1.1 and earlier allows remote attackers to deny service via the delivery of many small messages within a single HTTP/2 frame, leading to Uncontrolled Recursion and stack consumption."}, {"lang": "es", "value": "La funci\u00f3n HTTP2ToRawGRPCServerCodec en gRPC Swift versiones 1.1.1 y anteriores, permite a atacantes remotos denegar el servicio por medio de la entrega de muchos mensajes peque\u00f1os dentro de una sola trama HTTP/2, conllevando a una Recursi\u00f3n no controlada y un consumo de la pila"}], "id": "CVE-2021-36154", "lastModified": "2026-06-17T03:58:25.503", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "MEDIUM", "cvssData": {"accessComplexity": "LOW", "accessVector": "NETWORK", "authentication": "NONE", "availabilityImpact": "PARTIAL", "baseScore": 5.0, "confidentialityImpact": "NONE", "integrityImpact": "NONE", "vectorString": "AV:N/AC:L/Au:N/C:N/I:N/A:P", "version": "2.0"}, "exploitabilityScore": 10.0, "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": 7.5, "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"}]}, "published": "2021-07-09T12:15:08.097", "references": [{"source": "cve@mitre.org", "tags": ["Mailing List", "Third Party Advisory"], "url": "https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=35274"}, {"source": "cve@mitre.org", "tags": ["Release Notes", "Third Party Advisory"], "url": "https://github.com/grpc/grpc-swift/releases"}, {"source": "cve@mitre.org", "tags": ["Third Party Advisory"], "url": "https://github.com/grpc/grpc-swift/security/advisories/GHSA-4rhq-vq24-88gw"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Mailing List", "Third Party Advisory"], "url": "https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=35274"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Release Notes", "Third Party Advisory"], "url": "https://github.com/grpc/grpc-swift/releases"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Third Party Advisory"], "url": "https://github.com/grpc/grpc-swift/security/advisories/GHSA-4rhq-vq24-88gw"}], "sourceIdentifier": "cve@mitre.org", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-674"}], "source": "nvd@nist.gov", "type": "Primary"}]}

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