CVE-2021-29981

{"id": "CVE-2021-29981", "metrics": {"cvssMetricV2": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"version": "2.0", "baseScore": 6.8, "accessVector": "NETWORK", "vectorString": "AV:N/AC:M/Au:N/C:P/I:P/A:P", "authentication": "NONE", "integrityImpact": "PARTIAL", "accessComplexity": "MEDIUM", "availabilityImpact": "PARTIAL", "confidentialityImpact": "PARTIAL"}, "acInsufInfo": false, "impactScore": 6.4, "baseSeverity": "MEDIUM", "obtainAllPrivilege": false, "exploitabilityScore": 8.6, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": true}], "cvssMetricV31": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 8.8, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "REQUIRED", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "HIGH"}, "impactScore": 5.9, "exploitabilityScore": 2.8}]}, "published": "2021-08-17T20:15:07.730", "references": [{"url": "https://bugzilla.mozilla.org/show_bug.cgi?id=1707774", "tags": ["Issue Tracking", "Vendor Advisory"], "source": "security@mozilla.org"}, {"url": "https://security.gentoo.org/glsa/202202-03", "tags": ["Third Party Advisory"], "source": "security@mozilla.org"}, {"url": "https://www.mozilla.org/security/advisories/mfsa2021-33/", "tags": ["Vendor Advisory"], "source": "security@mozilla.org"}, {"url": "https://www.mozilla.org/security/advisories/mfsa2021-36/", "tags": ["Vendor Advisory"], "source": "security@mozilla.org"}, {"url": "https://bugzilla.mozilla.org/show_bug.cgi?id=1707774", "tags": ["Issue Tracking", "Vendor Advisory"], "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "https://security.gentoo.org/glsa/202202-03", "tags": ["Third Party Advisory"], "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "https://www.mozilla.org/security/advisories/mfsa2021-33/", "tags": ["Vendor Advisory"], "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "https://www.mozilla.org/security/advisories/mfsa2021-36/", "tags": ["Vendor Advisory"], "source": "af854a3a-2127-422b-91ae-364da2661108"}], "vulnStatus": "Modified", "weaknesses": [{"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "NVD-CWE-noinfo"}]}], "descriptions": [{"lang": "en", "value": "An issue present in lowering/register allocation could have led to obscure but deterministic register confusion failures in JITted code that would lead to a potentially exploitable crash. This vulnerability affects Firefox < 91 and Thunderbird < 91."}, {"lang": "es", "value": "Un problema presente en la asignaci\u00f3n de bajada y registro podr\u00eda haber conllevado a fallos de confusi\u00f3n de registro oscuros pero deterministas en el c\u00f3digo JITted que conllevar\u00eda un bloqueo potencialmente explotable. Esta vulnerabilidad afecta a Firefox versiones anteriores a 91 y Thunderbird versiones anteriores a 91."}], "lastModified": "2024-11-21T06:02:06.513", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "E2960D13-5DCE-4A97-8586-B259C31DEBFE", "versionEndExcluding": "91.0"}, {"criteria": "cpe:2.3:a:mozilla:thunderbird:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "FBC0787E-AD3E-4AC2-B56A-BBA460544DCE", "versionEndExcluding": "91.0"}], "operator": "OR"}]}], "sourceIdentifier": "security@mozilla.org"}