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We recommend upgrading past git commit&nbsp;<a target=\"_blank\" rel=\"nofollow\" href=\"https://github.com/google-deepmind/reverb/commit/6a0dcf4c9e842b7f999912f792aaa6f6bd261a25\">https://github.com/google-deepmind/reverb/commit/6a0dcf4c9e842b7f999912f792aaa6f6bd261a25</a></span>"}], "value": "There exists a use after free vulnerability in Reverb.\u00a0Reverb supports the VARIANT datatype, which is supposed to represent an arbitrary object in C++. When a tensor proto of type VARIANT is unpacked, memory is first allocated to store the entire tensor, and a ctor is called on each instance. Afterwards, Reverb copies the content in tensor_content\u00a0to the previously mentioned pre-allocated memory, which results in the bytes in tensor_content\u00a0overwriting the vtable pointers of all the objects which were previously allocated.\u00a0Reverb exposes 2 relevant gRPC endpoints: InsertStream and SampleStream. The attacker can insert this stream into the server\u2019s database, then when the client next calls SampleStream they will unpack the tensor into RAM, and when any method on that object is called (including its destructor) the attacker gains control of the Program Counter. 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We recommend upgrading past git commit&nbsp;<a target=\"_blank\" rel=\"nofollow\" href=\"https://github.com/google-deepmind/reverb/commit/6a0dcf4c9e842b7f999912f792aaa6f6bd261a25\">https://github.com/google-deepmind/reverb/commit/6a0dcf4c9e842b7f999912f792aaa6f6bd261a25</a></span>", "base64": false}]}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-502", "description": "CWE-502 Deserialization of Untrusted Data"}]}], "providerMetadata": {"orgId": "14ed7db2-1595-443d-9d34-6215bf890778", "shortName": "Google", "dateUpdated": "2024-09-19T15:50:12.825Z"}}}, "cveMetadata": {"cveId": "CVE-2024-8375", "state": "PUBLISHED", "dateUpdated": "2024-09-19T18:02:42.333Z", "dateReserved": "2024-09-02T12:42:51.115Z", "assignerOrgId": "14ed7db2-1595-443d-9d34-6215bf890778", "datePublished": "2024-09-19T15:50:12.825Z", "assignerShortName": "Google"}, "dataVersion": "5.1"}

{"cveTags": [], "descriptions": [{"lang": "en", "value": "There exists a use after free vulnerability in Reverb.\u00a0Reverb supports the VARIANT datatype, which is supposed to represent an arbitrary object in C++. When a tensor proto of type VARIANT is unpacked, memory is first allocated to store the entire tensor, and a ctor is called on each instance. Afterwards, Reverb copies the content in tensor_content\u00a0to the previously mentioned pre-allocated memory, which results in the bytes in tensor_content\u00a0overwriting the vtable pointers of all the objects which were previously allocated.\u00a0Reverb exposes 2 relevant gRPC endpoints: InsertStream and SampleStream. The attacker can insert this stream into the server\u2019s database, then when the client next calls SampleStream they will unpack the tensor into RAM, and when any method on that object is called (including its destructor) the attacker gains control of the Program Counter. We recommend upgrading past git commit\u00a0 https://github.com/google-deepmind/reverb/commit/6a0dcf4c9e842b7f999912f792aaa6f6bd261a25"}, {"lang": "es", "value": "Existe una vulnerabilidad de use after free en Reverb. Reverb admite el tipo de datos VARIANT, que se supone que representa un objeto arbitrario en C++. Cuando se descomprime un prototipo de tensor de tipo VARIANT, primero se asigna memoria para almacenar el tensor completo y se llama a un ctor en cada instancia. Luego, Reverb copia el contenido en tensor_content a la memoria preasignada mencionada anteriormente, lo que hace que los bytes en tensor_content sobrescriban los punteros de vtable de todos los objetos que se asignaron previamente. Reverb expone 2 endpoints gRPC relevantes: InsertStream y SampleStream. El atacante puede insertar este flujo en la base de datos del servidor, luego, cuando el cliente vuelva a llamar a SampleStream, descomprimir\u00e1 el tensor en la RAM y, cuando se llame a cualquier m\u00e9todo en ese objeto (incluido su destructor), el atacante obtendr\u00e1 el control del contador de programa. Recomendamos actualizar el commit de Git anterior https://github.com/google-deepmind/reverb/commit/6a0dcf4c9e842b7f999912f792aaa6f6bd261a25"}], "id": "CVE-2024-8375", "lastModified": "2024-09-20T12:30:17.483", "metrics": {"cvssMetricV40": [{"cvssData": {"attackComplexity": "HIGH", "attackRequirements": "PRESENT", "attackVector": "LOCAL", "automatable": "NOT_DEFINED", "availabilityRequirements": "NOT_DEFINED", "baseScore": 5.7, "baseSeverity": "MEDIUM", "confidentialityRequirements": "NOT_DEFINED", "exploitMaturity": "NOT_DEFINED", "integrityRequirements": "NOT_DEFINED", "modifiedAttackComplexity": "NOT_DEFINED", "modifiedAttackRequirements": "NOT_DEFINED", "modifiedAttackVector": "NOT_DEFINED", "modifiedPrivilegesRequired": "NOT_DEFINED", "modifiedSubsequentSystemAvailability": "NOT_DEFINED", "modifiedSubsequentSystemConfidentiality": "NOT_DEFINED", "modifiedSubsequentSystemIntegrity": "NOT_DEFINED", "modifiedUserInteraction": "NOT_DEFINED", "modifiedVulnerableSystemAvailability": "NOT_DEFINED", "modifiedVulnerableSystemConfidentiality": "NOT_DEFINED", "modifiedVulnerableSystemIntegrity": "NOT_DEFINED", "privilegesRequired": "LOW", "providerUrgency": "NOT_DEFINED", "recovery": "NOT_DEFINED", "safety": "NOT_DEFINED", "subsequentSystemAvailability": "NONE", "subsequentSystemConfidentiality": "LOW", "subsequentSystemIntegrity": "HIGH", "userInteraction": "ACTIVE", "valueDensity": "NOT_DEFINED", "vectorString": "CVSS:4.0/AV:L/AC:H/AT:P/PR:L/UI:A/VC:L/VI:H/VA:N/SC:L/SI:H/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X", "version": "4.0", "vulnerabilityResponseEffort": "NOT_DEFINED", "vulnerableSystemAvailability": "NONE", "vulnerableSystemConfidentiality": "LOW", "vulnerableSystemIntegrity": "HIGH"}, "source": "cve-coordination@google.com", "type": "Secondary"}]}, "published": "2024-09-19T16:15:06.023", "references": [{"source": "cve-coordination@google.com", "url": "https://github.com/google-deepmind/reverb/commit/6a0dcf4c9e842b7f999912f792aaa6f6bd261a25"}, {"source": "cve-coordination@google.com", "url": "https://github.com/google-deepmind/reverb/issues/141"}], "sourceIdentifier": "cve-coordination@google.com", "vulnStatus": "Awaiting Analysis", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-502"}], "source": "cve-coordination@google.com", "type": "Secondary"}]}

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