CVE-2020-8904

{"containers": {"cna": {"affected": [{"product": "Asylo", "vendor": "Google LLC", "versions": [{"lessThan": "0.6.0", "status": "affected", "version": "stable", "versionType": "custom"}]}], "credits": [{"lang": "en", "value": "Qinkun Bao, Zhaofeng Chen, Mingshen Sun, and Kang Li from Baidu Security"}], "datePublic": "2020-07-22T00:00:00.000Z", "descriptions": [{"lang": "en", "value": "An arbitrary memory overwrite vulnerability in the trusted memory of Asylo exists in versions prior to 0.6.0. As the ecall_restore function fails to validate the range of the output_len pointer, an attacker can manipulate the tmp_output_len value and write to an arbitrary location in the trusted (enclave) memory. We recommend updating Asylo to version 0.6.0 or later."}], "metrics": [{"cvssV3_1": {"attackComplexity": "HIGH", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 6.4, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "LOW", "privilegesRequired": "LOW", "scope": "CHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:N/I:L/A:H", "version": "3.1"}}], "problemTypes": [{"descriptions": [{"cweId": "CWE-823", "description": "CWE-823 Use of Out-of-range Pointer Offset", "lang": "en", "type": "CWE"}]}], "providerMetadata": {"dateUpdated": "2020-08-12T18:20:12.000Z", "orgId": "14ed7db2-1595-443d-9d34-6215bf890778", "shortName": "Google"}, "references": [{"tags": ["x_refsource_CONFIRM"], "url": "https://github.com/google/asylo/commit/e582f36ac49ee11a21d23ad6a30c333092e0a94e"}], "source": {"discovery": "EXTERNAL"}, "title": "Arbitrary trusted memory overwrite vulnerability in Asylo", "x_generator": {"engine": "Vulnogram 0.0.9"}, "x_legacyV4Record": {"CVE_data_meta": {"ASSIGNER": "security@google.com", "DATE_PUBLIC": "2020-07-22T00:22:00.000Z", "ID": "CVE-2020-8904", "STATE": "PUBLIC", "TITLE": "Arbitrary trusted memory overwrite vulnerability in Asylo"}, "affects": {"vendor": {"vendor_data": [{"product": {"product_data": [{"product_name": "Asylo", "version": {"version_data": [{"version_affected": "<", "version_name": "stable", "version_value": "0.6.0"}]}}]}, "vendor_name": "Google LLC"}]}}, "credit": [{"lang": "eng", "value": "Qinkun Bao, Zhaofeng Chen, Mingshen Sun, and Kang Li from Baidu Security"}], "data_format": "MITRE", "data_type": "CVE", "data_version": "4.0", "description": {"description_data": [{"lang": "eng", "value": "An arbitrary memory overwrite vulnerability in the trusted memory of Asylo exists in versions prior to 0.6.0. As the ecall_restore function fails to validate the range of the output_len pointer, an attacker can manipulate the tmp_output_len value and write to an arbitrary location in the trusted (enclave) memory. We recommend updating Asylo to version 0.6.0 or later."}]}, "generator": {"engine": "Vulnogram 0.0.9"}, "impact": {"cvss": {"attackComplexity": "HIGH", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 6.4, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "LOW", "privilegesRequired": "LOW", "scope": "CHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:N/I:L/A:H", "version": "3.1"}}, "problemtype": {"problemtype_data": [{"description": [{"lang": "eng", "value": "CWE-823 Use of Out-of-range Pointer Offset"}]}]}, "references": {"reference_data": [{"name": "https://github.com/google/asylo/commit/e582f36ac49ee11a21d23ad6a30c333092e0a94e", "refsource": "CONFIRM", "url": "https://github.com/google/asylo/commit/e582f36ac49ee11a21d23ad6a30c333092e0a94e"}]}, "source": {"discovery": "EXTERNAL"}}}, "adp": [{"providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-04T10:12:11.014Z"}, "title": "CVE Program Container", "references": [{"tags": ["x_refsource_CONFIRM", "x_transferred"], "url": "https://github.com/google/asylo/commit/e582f36ac49ee11a21d23ad6a30c333092e0a94e"}]}]}, "cveMetadata": {"assignerOrgId": "14ed7db2-1595-443d-9d34-6215bf890778", "assignerShortName": "Google", "cveId": "CVE-2020-8904", "datePublished": "2020-08-12T18:20:13.047Z", "dateReserved": "2020-02-12T00:00:00.000Z", "dateUpdated": "2024-09-16T23:21:07.649Z", "state": "PUBLISHED"}, "dataType": "CVE_RECORD", "dataVersion": "5.1"}

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{"affected": [{"affectedData": [{"product": "Asylo", "vendor": "Google LLC", "versions": [{"lessThan": "0.6.0", "status": "affected", "version": "stable", "versionType": "custom"}]}], "source": "cve-coordination@google.com"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:google:asylo:*:*:*:*:*:*:*:*", "matchCriteriaId": "2E43ACF0-4DFF-4A7A-BC8B-90E067F13206", "versionEndExcluding": "0.6.0", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "An arbitrary memory overwrite vulnerability in the trusted memory of Asylo exists in versions prior to 0.6.0. As the ecall_restore function fails to validate the range of the output_len pointer, an attacker can manipulate the tmp_output_len value and write to an arbitrary location in the trusted (enclave) memory. We recommend updating Asylo to version 0.6.0 or later."}, {"lang": "es", "value": "Se presenta una vulnerabilidad de sobrescritura de memoria arbitraria en la memoria confiable de Asylo en versiones anteriores a 0.6.0. Como la funci\u00f3n ecall_restore presenta un fallo al comprobar el rango del puntero output_len, un atacante puede manipular el valor tmp_output_len y escribir en una ubicaci\u00f3n arbitraria en la memoria confiable (enclave). Recomendamos actualizar Asylo en las versiones 0.6. 0 o posteriores"}], "id": "CVE-2020-8904", "lastModified": "2026-06-17T03:27:09.380", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "MEDIUM", "cvssData": {"accessComplexity": "LOW", "accessVector": "NETWORK", "authentication": "SINGLE", "availabilityImpact": "PARTIAL", "baseScore": 5.5, "confidentialityImpact": "NONE", "integrityImpact": "PARTIAL", "vectorString": "AV:N/AC:L/Au:S/C:N/I:P/A:P", "version": "2.0"}, "exploitabilityScore": 8.0, "impactScore": 4.9, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": false}], "cvssMetricV31": [{"cvssData": {"attackComplexity": "HIGH", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 6.4, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "LOW", "privilegesRequired": "LOW", "scope": "CHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:N/I:L/A:H", "version": "3.1"}, "exploitabilityScore": 1.1, "impactScore": 4.7, "source": "cve-coordination@google.com", "type": "Secondary"}, {"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 9.6, "baseSeverity": "CRITICAL", "confidentialityImpact": "NONE", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "CHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 3.1, "impactScore": 5.8, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2020-08-12T19:15:14.593", "references": [{"source": "cve-coordination@google.com", "tags": ["Patch", "Third Party Advisory"], "url": "https://github.com/google/asylo/commit/e582f36ac49ee11a21d23ad6a30c333092e0a94e"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch", "Third Party Advisory"], "url": "https://github.com/google/asylo/commit/e582f36ac49ee11a21d23ad6a30c333092e0a94e"}], "sourceIdentifier": "cve-coordination@google.com", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-823"}], "source": "cve-coordination@google.com", "type": "Secondary"}, {"description": [{"lang": "en", "value": "CWE-119"}], "source": "nvd@nist.gov", "type": "Primary"}]}

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