{ "id": "CVE-2018-18500", "sourceIdentifier": "security@mozilla.org", "published": "2019-02-05T21:29:00.330", "lastModified": "2019-04-02T07:29:06.163", "vulnStatus": "Modified", "descriptions": [ { "lang": "en", "value": "A use-after-free vulnerability can occur while parsing an HTML5 stream in concert with custom HTML elements. This results in the stream parser object being freed while still in use, leading to a potentially exploitable crash. This vulnerability affects Thunderbird < 60.5, Firefox ESR < 60.5, and Firefox < 65." }, { "lang": "es", "value": "Una vulnerabilidad de memoria previamente liberada puede ocurrir a la hora de analizar una transmisi\u00f3n HTML5 junto con elementos HTML personalizados. Esto resulta en la liberaci\u00f3n del objeto de an\u00e1lisis de transmisi\u00f3n mientras est\u00e1 en uso, conduciendo potencialmente a un cierre inesperado explotable. Esta vulnerabilidad afecta a las versiones anteriores a la 60.5 de Thunderbird, las versiones anteriores a la 60.5 de Firefox ESR y las versiones anteriores a la 65 de Firefox." } ], "metrics": { "cvssMetricV30": [ { "source": "nvd@nist.gov", "type": "Primary", "cvssData": { "version": "3.0", "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "availabilityImpact": "HIGH", "baseScore": 9.8, "baseSeverity": "CRITICAL" }, "exploitabilityScore": 3.9, "impactScore": 5.9 } ], "cvssMetricV2": [ { "source": "nvd@nist.gov", "type": "Primary", "cvssData": { "version": "2.0", "vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:P", "accessVector": "NETWORK", "accessComplexity": "LOW", "authentication": "NONE", "confidentialityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "availabilityImpact": "PARTIAL", "baseScore": 7.5 }, "baseSeverity": "HIGH", "exploitabilityScore": 10.0, "impactScore": 6.4, "acInsufInfo": false, "obtainAllPrivilege": false, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": false } ] }, "weaknesses": [ { "source": "nvd@nist.gov", "type": "Primary", "description": [ { "lang": "en", "value": "CWE-416" } ] } ], "configurations": [ { "nodes": [ { "operator": "OR", "negate": false, "cpeMatch": [ { "vulnerable": true, "criteria": "cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:*", "versionEndExcluding": "65.0", "matchCriteriaId": "3E8102F0-FD9B-4732-8E06-9CBE8054D614" }, { "vulnerable": true, "criteria": "cpe:2.3:a:mozilla:firefox_esr:*:*:*:*:*:*:*:*", "versionEndExcluding": "60.5", "matchCriteriaId": "EEFCACC7-F861-49F3-83F3-7F30518BC1C3" }, { "vulnerable": true, "criteria": "cpe:2.3:a:mozilla:thunderbird:*:*:*:*:*:*:*:*", "versionEndExcluding": "60.5", "matchCriteriaId": "3E345964-64EF-416D-88D3-414296C986CE" } ] } ] }, { 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