{ "id": "CVE-2021-34550", "sourceIdentifier": "cve@mitre.org", "published": "2021-06-29T12:15:08.670", "lastModified": "2021-09-20T18:53:43.557", "vulnStatus": "Analyzed", "descriptions": [ { "lang": "en", "value": "An issue was discovered in Tor before 0.4.6.5, aka TROVE-2021-006. The v3 onion service descriptor parsing allows out-of-bounds memory access, and a client crash, via a crafted onion service descriptor" }, { "lang": "es", "value": "Se ha detectado un problema en Tor versiones anteriores a 0.4.6.5, tambi\u00e9n se conoce como TROVE-2021-006. El an\u00e1lisis del descriptor del servicio de v3 onion, permite un acceso a la memoria fuera de l\u00edmites, y un bloqueo del cliente, por medio de un descriptor de servicio onion dise\u00f1ado" } ], "metrics": { "cvssMetricV31": [ { "source": "nvd@nist.gov", "type": "Primary", "cvssData": { "version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "availabilityImpact": "HIGH", "baseScore": 7.5, "baseSeverity": "HIGH" }, "exploitabilityScore": 3.9, "impactScore": 3.6 } ], "cvssMetricV2": [ { "source": "nvd@nist.gov", "type": "Primary", "cvssData": { "version": "2.0", "vectorString": "AV:N/AC:L/Au:N/C:N/I:N/A:P", "accessVector": "NETWORK", "accessComplexity": "LOW", "authentication": "NONE", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "availabilityImpact": "PARTIAL", "baseScore": 5.0 }, "baseSeverity": "MEDIUM", "exploitabilityScore": 10.0, "impactScore": 2.9, "acInsufInfo": false, "obtainAllPrivilege": false, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": false } ] }, "weaknesses": [ { "source": "nvd@nist.gov", "type": "Primary", "description": [ { "lang": "en", "value": "CWE-119" } ] } ], "configurations": [ { "nodes": [ { "operator": "OR", "negate": false, "cpeMatch": [ { "vulnerable": true, "criteria": "cpe:2.3:a:torproject:tor:*:*:*:*:*:*:*:*", "versionEndExcluding": "0.3.5.15", "matchCriteriaId": "C2666B22-DC07-4BFA-A756-3DC4E970EBDD" }, { "vulnerable": true, "criteria": "cpe:2.3:a:torproject:tor:*:*:*:*:*:*:*:*", "versionStartIncluding": "0.4.0.0", "versionEndExcluding": "0.4.4.9", "matchCriteriaId": "072B35B0-7EBF-4652-BB89-12B4BEC9A8EF" }, { "vulnerable": true, "criteria": "cpe:2.3:a:torproject:tor:*:*:*:*:*:*:*:*", "versionStartIncluding": "0.4.5.0", "versionEndExcluding": "0.4.5.9", "matchCriteriaId": "57ED9234-622B-4B0D-8E29-2851A87DE0D1" }, { "vulnerable": true, "criteria": "cpe:2.3:a:torproject:tor:*:*:*:*:*:*:*:*", "versionStartIncluding": "0.4.6.0", "versionEndExcluding": "0.4.6.5", "matchCriteriaId": "EFD89230-DBEF-4134-9C42-8187CE542B7C" } ] } ] } ], "references": [ { "url": "https://blog.torproject.org/node/2041", "source": "cve@mitre.org", "tags": [ "Release Notes", "Vendor Advisory" ] }, { "url": "https://gitlab.torproject.org/tpo/core/tor/-/issues/40392", "source": "cve@mitre.org", "tags": [ "Broken Link" ] }, { "url": "https://security.gentoo.org/glsa/202107-25", "source": "cve@mitre.org", "tags": [ "Third Party Advisory" ] } ] }