{ "id": "CVE-2021-28089", "sourceIdentifier": "cve@mitre.org", "published": "2021-03-19T05:15:12.807", "lastModified": "2022-05-16T21:06:51.787", "vulnStatus": "Analyzed", "descriptions": [ { "lang": "en", "value": "Tor before 0.4.5.7 allows a remote participant in the Tor directory protocol to exhaust CPU resources on a target, aka TROVE-2021-001." }, { "lang": "es", "value": "Tor versiones anteriores a 0.4.5.7, permite a un participante remoto en el protocolo de directorio de Tor agotar los recursos de la CPU en un objetivo, tambi\u00e9n se conoce como TROVE-2021-001" } ], "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-400" } ] } ], "configurations": [ { "nodes": [ { "operator": "OR", "negate": false, "cpeMatch": [ { "vulnerable": true, "criteria": "cpe:2.3:a:torproject:tor:*:*:*:*:*:*:*:*", "versionEndExcluding": "0.3.5.14", "matchCriteriaId": "43571CF8-3E89-4207-85A4-809927C4E8B1" }, { "vulnerable": true, "criteria": "cpe:2.3:a:torproject:tor:*:*:*:*:*:*:*:*", "versionStartIncluding": "0.4.4.4", "versionEndExcluding": "0.4.4.8", "matchCriteriaId": "172491E9-1095-4908-8D59-F65C7639FDAF" }, { "vulnerable": true, "criteria": "cpe:2.3:a:torproject:tor:*:*:*:*:*:*:*:*", "versionStartIncluding": "0.4.5.0", "versionEndExcluding": "0.4.5.7", "matchCriteriaId": "A7449C9D-05ED-49E4-A3D9-674B44E032F9" }, { "vulnerable": true, "criteria": "cpe:2.3:a:torproject:tor:0.4.4.0:alpha:*:*:*:*:*:*", "matchCriteriaId": "C3708B4D-8F02-47B4-81E8-AA626B04C906" }, { "vulnerable": true, "criteria": "cpe:2.3:a:torproject:tor:0.4.4.1:alpha:*:*:*:*:*:*", "matchCriteriaId": "2143F2C0-BBD4-4B14-84D6-70125DD37376" }, { "vulnerable": true, "criteria": "cpe:2.3:a:torproject:tor:0.4.4.2:alpha:*:*:*:*:*:*", "matchCriteriaId": "85811EFA-8639-439D-BC97-52C70D5937E1" }, { "vulnerable": true, "criteria": "cpe:2.3:a:torproject:tor:0.4.4.3:alpha:*:*:*:*:*:*", "matchCriteriaId": "419573B8-18FB-4BEA-8C21-023BA05B3D8E" } ] } ] }, { "nodes": [ { "operator": "OR", "negate": false, "cpeMatch": [ { "vulnerable": true, "criteria": "cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:*", "matchCriteriaId": "E460AA51-FCDA-46B9-AE97-E6676AA5E194" } ] } ] } ], "references": [ { "url": "https://blog.torproject.org/node/2009", "source": "cve@mitre.org", "tags": [ "Release Notes", "Vendor Advisory" ] }, { "url": "https://gitlab.torproject.org/tpo/core/tor/-/issues/40304", "source": "cve@mitre.org", "tags": [ "Vendor Advisory" ] }, { "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/HPDXB2GZHG3VNOTWSXQ3QZVHNV76WCU5/", "source": "cve@mitre.org", "tags": [ "Mailing List", "Third Party Advisory" ] }, { "url": "https://security.gentoo.org/glsa/202107-25", "source": "cve@mitre.org", "tags": [ "Third Party Advisory" ] } ] }