{ "id": "CVE-2021-23973", "sourceIdentifier": "security@mozilla.org", "published": "2021-02-26T02:15:13.243", "lastModified": "2022-05-27T18:04:21.870", "vulnStatus": "Analyzed", "descriptions": [ { "lang": "en", "value": "When trying to load a cross-origin resource in an audio/video context a decoding error may have resulted, and the content of that error may have revealed information about the resource. This vulnerability affects Firefox < 86, Thunderbird < 78.8, and Firefox ESR < 78.8." }, { "lang": "es", "value": "Cuando se intenta cargar un recurso de origen cruzado en un contexto de audio y video, puede haber resultado un error de decodificaci\u00f3n, y el contenido de ese error puede haber divulgado informaci\u00f3n sobre el recurso. Esta vulnerabilidad afecta a Firefox versiones anteriores a 86, Thunderbird versiones anteriores a 78,8 y Firefox ESR versiones anteriores a 78,8" } ], "metrics": { "cvssMetricV31": [ { "source": "nvd@nist.gov", "type": "Primary", "cvssData": { "version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "REQUIRED", "scope": "UNCHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "NONE", "availabilityImpact": "NONE", "baseScore": 6.5, "baseSeverity": "MEDIUM" }, "exploitabilityScore": 2.8, "impactScore": 3.6 } ], "cvssMetricV2": [ { "source": "nvd@nist.gov", "type": "Primary", "cvssData": { "version": "2.0", "vectorString": "AV:N/AC:M/Au:N/C:P/I:N/A:N", "accessVector": "NETWORK", "accessComplexity": "MEDIUM", "authentication": "NONE", "confidentialityImpact": "PARTIAL", "integrityImpact": "NONE", "availabilityImpact": "NONE", "baseScore": 4.3 }, "baseSeverity": "MEDIUM", "exploitabilityScore": 8.6, "impactScore": 2.9, "acInsufInfo": false, "obtainAllPrivilege": false, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": true } ] }, "weaknesses": [ { "source": "nvd@nist.gov", "type": "Primary", "description": [ { "lang": "en", "value": "CWE-209" } ] } ], "configurations": [ { "nodes": [ { "operator": "OR", "negate": false, "cpeMatch": [ { "vulnerable": true, "criteria": "cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:*", "versionEndExcluding": "86.0", "matchCriteriaId": "89580DC6-183F-46F0-A27E-4E16D6B10EB6" }, { "vulnerable": true, "criteria": "cpe:2.3:a:mozilla:firefox_esr:*:*:*:*:*:*:*:*", "versionEndExcluding": "78.8", "matchCriteriaId": "6A523AED-F145-4D51-BF78-95B61B8A0B34" }, { "vulnerable": true, "criteria": "cpe:2.3:a:mozilla:thunderbird:*:*:*:*:*:*:*:*", "versionEndExcluding": "78.8", "matchCriteriaId": "3ABA16AF-38C2-4445-B41F-9228C97A89C1" } ] } ] }, { "nodes": [ { "operator": "OR", "negate": false, "cpeMatch": [ { "vulnerable": true, "criteria": "cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*", "matchCriteriaId": "DEECE5FC-CACF-4496-A3E7-164736409252" }, { "vulnerable": true, "criteria": "cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*", "matchCriteriaId": "07B237A9-69A3-4A9C-9DA0-4E06BD37AE73" } ] } ] } ], "references": [ { "url": "https://bugzilla.mozilla.org/show_bug.cgi?id=1690976", "source": "security@mozilla.org", "tags": [ "Issue Tracking", "Permissions Required", "Vendor Advisory" ] }, { "url": "https://lists.debian.org/debian-lts-announce/2021/03/msg00000.html", "source": "security@mozilla.org", "tags": [ "Mailing List", "Third Party Advisory" ] }, { "url": "https://security.gentoo.org/glsa/202104-09", "source": "security@mozilla.org", "tags": [ "Third Party Advisory" ] }, { "url": "https://security.gentoo.org/glsa/202104-10", "source": "security@mozilla.org", "tags": [ "Third Party Advisory" ] }, { "url": "https://www.debian.org/security/2021/dsa-4866", "source": "security@mozilla.org", "tags": [ "Third Party Advisory" ] }, { "url": "https://www.mozilla.org/security/advisories/mfsa2021-07/", "source": "security@mozilla.org", "tags": [ "Release Notes", "Vendor Advisory" ] }, { "url": "https://www.mozilla.org/security/advisories/mfsa2021-08/", "source": "security@mozilla.org", "tags": [ "Release Notes", "Vendor Advisory" ] }, { "url": "https://www.mozilla.org/security/advisories/mfsa2021-09/", "source": "security@mozilla.org", "tags": [ "Release Notes", "Vendor Advisory" ] } ] }