CVE-2019-8955

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"vulnerable": true}, {"criteria": "cpe:2.3:a:torproject:tor:0.4.0.1:alpha:*:*:*:*:*:*", "matchCriteriaId": "3ED7A3E0-F720-476F-B440-4724BC8AAD9F", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "In Tor before 0.3.3.12, 0.3.4.x before 0.3.4.11, 0.3.5.x before 0.3.5.8, and 0.4.x before 0.4.0.2-alpha, remote denial of service against Tor clients and relays can occur via memory exhaustion in the KIST cell scheduler."}, {"lang": "es", "value": "En Tor, en versiones anteriores a la 0.3.3.12, en las 0.3.4.x anteriores a la 0.3.4.11, en las 0.3.5.x anteriores a la 0.3.5.8 y en las 0.4.x anteriores a la 0.4.0.2-alpha, puede ocurrir una denegaci\u00f3n de servicio (DoS) remota contra los clientes Tor, adem\u00e1s de reproducciones mediante el agotamiento de memoria en el programador \"KIST cell\"."}], "id": "CVE-2019-8955", "lastModified": "2026-06-17T02:42:50.857", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "MEDIUM", "cvssData": {"accessComplexity": "LOW", "accessVector": "NETWORK", "authentication": "NONE", "availabilityImpact": "PARTIAL", "baseScore": 5.0, "confidentialityImpact": "NONE", "integrityImpact": "NONE", "vectorString": "AV:N/AC:L/Au:N/C:N/I:N/A:P", "version": "2.0"}, "exploitabilityScore": 10.0, "impactScore": 2.9, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": false}], "cvssMetricV30": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 7.5, "baseSeverity": "HIGH", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "version": "3.0"}, "exploitabilityScore": 3.9, "impactScore": 3.6, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2019-02-21T23:29:00.267", "references": [{"source": "cve@mitre.org", "url": "http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00013.html"}, {"source": "cve@mitre.org", "tags": ["Third Party Advisory", "VDB Entry"], "url": "http://www.securityfocus.com/bid/107136"}, {"source": "cve@mitre.org", "tags": ["Vendor Advisory"], "url": "https://blog.torproject.org/new-releases-tor-0402-alpha-0358-03411-and-03312"}, {"source": "cve@mitre.org", "tags": ["Vendor Advisory"], "url": "https://trac.torproject.org/projects/tor/ticket/29168"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00013.html"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Third Party Advisory", "VDB Entry"], "url": "http://www.securityfocus.com/bid/107136"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Vendor Advisory"], "url": "https://blog.torproject.org/new-releases-tor-0402-alpha-0358-03411-and-03312"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Vendor Advisory"], "url": "https://trac.torproject.org/projects/tor/ticket/29168"}], "sourceIdentifier": "cve@mitre.org", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-770"}], "source": "nvd@nist.gov", "type": "Primary"}]}

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