CVE-2020-8943

{"containers": {"cna": {"affected": [{"product": "Asylo", "vendor": "Google LLC", "versions": [{"lessThanOrEqual": "0.6.0", "status": "affected", "version": "unspecified", "versionType": "custom"}]}], "credits": [{"lang": "en", "value": "Qinkun Bao (Baidu Security)"}, {"lang": "en", "value": "Zhaofeng Chen (Baidu Security)"}, {"lang": "en", "value": "Mingshen Sun (Baidu Security)"}, {"lang": "en", "value": "Kang Li (Baidu Security)"}], "descriptions": [{"lang": "en", "value": "An arbitrary memory read vulnerability in Asylo versions up to 0.6.0 allows an untrusted attacker to make a call to enc_untrusted_recvfrom whose return size was not validated against the requested size. The parameter size is unchecked allowing the attacker to read memory locations outside of the intended buffer size including memory addresses within the secure enclave. We recommend upgrading past commit 6e158d558abd3c29a0208e30c97c9a8c5bd4230f"}], "metrics": [{"cvssV3_1": {"attackComplexity": "HIGH", "attackVector": "LOCAL", "availabilityImpact": "NONE", "baseScore": 5.3, "baseSeverity": "MEDIUM", "confidentialityImpact": "HIGH", "integrityImpact": "LOW", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:L/A:N", "version": "3.1"}}], "problemTypes": [{"descriptions": [{"cweId": "CWE-120", "description": "CWE-120 Buffer Overflow", "lang": "en", "type": "CWE"}]}], "providerMetadata": {"dateUpdated": "2020-12-15T14:55:38.000Z", "orgId": "14ed7db2-1595-443d-9d34-6215bf890778", "shortName": "Google"}, "references": [{"tags": ["x_refsource_CONFIRM"], "url": "https://github.com/google/asylo/commit/6e158d558abd3c29a0208e30c97c9a8c5bd4230f"}], "solutions": [{"lang": "en", "value": "We recommend upgradingpast commit 6e158d558abd3c29a0208e30c97c9a8c5bd4230f"}], "source": {"discovery": "UNKNOWN"}, "title": "Unchecked buffer overrun in enc_untrusted_recvfrom", "x_generator": {"engine": "Vulnogram 0.0.9"}, "x_legacyV4Record": {"CVE_data_meta": {"ASSIGNER": "security@google.com", "ID": "CVE-2020-8943", "STATE": "PUBLIC", "TITLE": "Unchecked buffer overrun in enc_untrusted_recvfrom"}, "affects": {"vendor": {"vendor_data": [{"product": {"product_data": [{"product_name": "Asylo", "version": {"version_data": [{"version_affected": "<=", "version_value": "0.6.0"}]}}]}, "vendor_name": "Google LLC"}]}}, "credit": [{"lang": "eng", "value": "Qinkun Bao (Baidu Security)"}, {"lang": "eng", "value": "Zhaofeng Chen (Baidu Security)"}, {"lang": "eng", "value": "Mingshen Sun (Baidu Security)"}, {"lang": "eng", "value": "Kang Li (Baidu Security)"}], "data_format": "MITRE", "data_type": "CVE", "data_version": "4.0", "description": {"description_data": [{"lang": "eng", "value": "An arbitrary memory read vulnerability in Asylo versions up to 0.6.0 allows an untrusted attacker to make a call to enc_untrusted_recvfrom whose return size was not validated against the requested size. The parameter size is unchecked allowing the attacker to read memory locations outside of the intended buffer size including memory addresses within the secure enclave. We recommend upgrading past commit 6e158d558abd3c29a0208e30c97c9a8c5bd4230f"}]}, "generator": {"engine": "Vulnogram 0.0.9"}, "impact": {"cvss": {"attackComplexity": "HIGH", "attackVector": "LOCAL", "availabilityImpact": "NONE", "baseScore": 5.3, "baseSeverity": "MEDIUM", "confidentialityImpact": "HIGH", "integrityImpact": "LOW", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:L/A:N", "version": "3.1"}}, "problemtype": {"problemtype_data": [{"description": [{"lang": "eng", "value": "CWE-120 Buffer Overflow"}]}]}, "references": {"reference_data": [{"name": "https://github.com/google/asylo/commit/6e158d558abd3c29a0208e30c97c9a8c5bd4230f", "refsource": "CONFIRM", "url": "https://github.com/google/asylo/commit/6e158d558abd3c29a0208e30c97c9a8c5bd4230f"}]}, "solution": [{"lang": "en", "value": "We recommend upgradingpast commit 6e158d558abd3c29a0208e30c97c9a8c5bd4230f"}], "source": {"discovery": "UNKNOWN"}}}, "adp": [{"providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-04T10:12:11.017Z"}, "title": "CVE Program Container", "references": [{"tags": ["x_refsource_CONFIRM", "x_transferred"], "url": "https://github.com/google/asylo/commit/6e158d558abd3c29a0208e30c97c9a8c5bd4230f"}]}]}, "cveMetadata": {"assignerOrgId": "14ed7db2-1595-443d-9d34-6215bf890778", "assignerShortName": "Google", "cveId": "CVE-2020-8943", "datePublished": "2020-12-15T14:55:38.000Z", "dateReserved": "2020-02-12T00:00:00.000Z", "dateUpdated": "2024-08-04T10:12:11.017Z", "state": "PUBLISHED"}, "dataType": "CVE_RECORD", "dataVersion": "5.1"}

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{"affected": [{"affectedData": [{"product": "Asylo", "vendor": "Google LLC", "versions": [{"lessThanOrEqual": "0.6.0", "status": "affected", "version": "unspecified", "versionType": "custom"}]}], "source": "cve-coordination@google.com"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:google:asylo:*:*:*:*:*:*:*:*", "matchCriteriaId": "D4356338-A28E-442E-BD14-1A927E3824E9", "versionEndIncluding": "0.6.0", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "An arbitrary memory read vulnerability in Asylo versions up to 0.6.0 allows an untrusted attacker to make a call to enc_untrusted_recvfrom whose return size was not validated against the requested size. The parameter size is unchecked allowing the attacker to read memory locations outside of the intended buffer size including memory addresses within the secure enclave. We recommend upgrading past commit 6e158d558abd3c29a0208e30c97c9a8c5bd4230f"}, {"lang": "es", "value": "Una vulnerabilidad de lectura de memoria arbitraria en Asylo versiones hasta 0.6.0, permite a un atacante que no es confiable realizar una llamada a la funci\u00f3n enc_untrusted_recvfrom cuyo tama\u00f1o de retorno no se comprob\u00f3 contra el tama\u00f1o solicitado.&#xa0;El tama\u00f1o del par\u00e1metro no es comprobado, permitiendo al atacante leer ubicaciones de memoria fuera del tama\u00f1o de b\u00fafer previsto, incluyendo unas direcciones de memoria dentro del enclave seguro.&#xa0;Recomendamos actualizar m\u00e1s all\u00e1 del commit 6e158d558abd3c29a0208e30c97c9a8c5bd4230f"}], "id": "CVE-2020-8943", "lastModified": "2026-06-17T03:27:12.807", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "LOW", "cvssData": {"accessComplexity": "LOW", "accessVector": "LOCAL", "authentication": "NONE", "availabilityImpact": "NONE", "baseScore": 2.1, "confidentialityImpact": "PARTIAL", "integrityImpact": "NONE", "vectorString": "AV:L/AC:L/Au:N/C:P/I:N/A:N", "version": "2.0"}, "exploitabilityScore": 3.9, "impactScore": 2.9, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": false}], "cvssMetricV31": [{"cvssData": {"attackComplexity": "HIGH", "attackVector": "LOCAL", "availabilityImpact": "NONE", "baseScore": 5.3, "baseSeverity": "MEDIUM", "confidentialityImpact": "HIGH", "integrityImpact": "LOW", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:L/A:N", "version": "3.1"}, "exploitabilityScore": 1.0, "impactScore": 4.2, "source": "cve-coordination@google.com", "type": "Secondary"}, {"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "NONE", "baseScore": 5.5, "baseSeverity": "MEDIUM", "confidentialityImpact": "HIGH", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 3.6, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2020-12-15T15:15:13.643", "references": [{"source": "cve-coordination@google.com", "tags": ["Patch", "Third Party Advisory"], "url": "https://github.com/google/asylo/commit/6e158d558abd3c29a0208e30c97c9a8c5bd4230f"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch", "Third Party Advisory"], "url": "https://github.com/google/asylo/commit/6e158d558abd3c29a0208e30c97c9a8c5bd4230f"}], "sourceIdentifier": "cve-coordination@google.com", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-120"}], "source": "cve-coordination@google.com", "type": "Secondary"}, {"description": [{"lang": "en", "value": "CWE-125"}], "source": "nvd@nist.gov", "type": "Primary"}]}

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