CVE-2018-0491

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{"affected": [{"affectedData": [{"product": "Tor", "vendor": "n/a", "versions": [{"status": "affected", "version": "Tor"}]}], "source": "security@debian.org"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:torproject:tor:*:*:*:*:*:*:*:*", "matchCriteriaId": "1E3C7B44-DBC7-4D14-94F9-0DC25C1167EE", "versionEndExcluding": "0.3.2.10", "versionStartIncluding": "0.3.2.0", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "A use-after-free issue was discovered in Tor 0.3.2.x before 0.3.2.10. It allows remote attackers to cause a denial of service (relay crash) because the KIST implementation allows a channel to be added more than once in the pending list."}, {"lang": "es", "value": "Se ha descubierto un problema de uso de memoria previamente liberada en Tor, en versiones 0.3.2.x anteriores a la 0.3.2.10. Permite que atacantes remotos provoquen una denegaci\u00f3n de servicio (cierre inesperado del relevo) debido a que la implementaci\u00f3n KIST permite que un canal se a\u00f1ada m\u00e1s de una vez en la lista de pendientes."}], "id": "CVE-2018-0491", "lastModified": "2026-06-17T01:30:57.000", "metrics": {"cvssMetricV2": [{"acInsufInfo": true, "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": "2018-03-05T15:29:00.270", "references": [{"source": "security@debian.org", "tags": ["Vendor Advisory"], "url": "https://blog.torproject.org/new-stable-tor-releases-security-fixes-and-dos-prevention-03210-03110-02915"}, {"source": "security@debian.org", "tags": ["Issue Tracking", "Mitigation", "Vendor Advisory"], "url": "https://trac.torproject.org/projects/tor/ticket/24700"}, {"source": "security@debian.org", "tags": ["Issue Tracking", "Patch", "Vendor Advisory"], "url": "https://trac.torproject.org/projects/tor/ticket/25117"}, {"source": "security@debian.org", "tags": ["Exploit", "Third Party Advisory", "VDB Entry"], "url": "https://www.exploit-db.com/exploits/44994/"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Vendor Advisory"], "url": "https://blog.torproject.org/new-stable-tor-releases-security-fixes-and-dos-prevention-03210-03110-02915"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Issue Tracking", "Mitigation", "Vendor Advisory"], "url": "https://trac.torproject.org/projects/tor/ticket/24700"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Issue Tracking", "Patch", "Vendor Advisory"], "url": "https://trac.torproject.org/projects/tor/ticket/25117"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Exploit", "Third Party Advisory", "VDB Entry"], "url": "https://www.exploit-db.com/exploits/44994/"}], "sourceIdentifier": "security@debian.org", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-416"}], "source": "nvd@nist.gov", "type": "Primary"}]}

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