{"dataType": "CVE_RECORD", "dataVersion": "5.0", "cveMetadata": {"state": "PUBLISHED", "cveId": "CVE-2021-43529", "assignerOrgId": "f16b083a-5664-49f3-a51e-8d479e5ed7fe", "assignerShortName": "mozilla", "dateUpdated": "2023-02-16T00:00:00", "dateReserved": "2021-11-08T00:00:00", "datePublished": "2023-02-16T00:00:00"}, "containers": {"cna": {"providerMetadata": {"orgId": "f16b083a-5664-49f3-a51e-8d479e5ed7fe", "shortName": "mozilla", "dateUpdated": "2023-02-16T00:00:00"}, "descriptions": [{"lang": "en", "value": "Thunderbird versions prior to 91.3.0 are vulnerable to the heap overflow described in CVE-2021-43527 when processing S/MIME messages. Thunderbird versions 91.3.0 and later will not call the vulnerable code when processing S/MIME messages that contain certificates with DER-encoded DSA or RSA-PSS signatures."}], "affected": [{"vendor": "Mozilla", "product": "Thunderbird", "versions": [{"version": "unspecified", "lessThan": "91.3.0", "status": "affected", "versionType": "custom"}]}], "references": [{"url": "https://bugzilla.mozilla.org/show_bug.cgi?id=CVE-2021-43529"}], "problemTypes": [{"descriptions": [{"type": "text", "lang": "en", "description": "Memory corruption when processing S/MIME messages"}]}], "x_generator": {"engine": "Vulnogram 0.0.9"}, "source": {"discovery": "UNKNOWN"}}}}

{"configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:mozilla:thunderbird:*:*:*:*:*:*:*:*", "matchCriteriaId": "65E19CA9-5FDF-4253-8D56-FD82239F7D93", "versionEndExcluding": "91.3.0", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "descriptions": [{"lang": "en", "value": "Thunderbird versions prior to 91.3.0 are vulnerable to the heap overflow described in CVE-2021-43527 when processing S/MIME messages. Thunderbird versions 91.3.0 and later will not call the vulnerable code when processing S/MIME messages that contain certificates with DER-encoded DSA or RSA-PSS signatures."}], "id": "CVE-2021-43529", "lastModified": "2023-02-28T13:55:26.027", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 9.8, "baseSeverity": "CRITICAL", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 5.9, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2023-02-16T22:15:10.810", "references": [{"source": "security@mozilla.org", "tags": ["Issue Tracking"], "url": "https://bugzilla.mozilla.org/show_bug.cgi?id=CVE-2021-43529"}], "sourceIdentifier": "security@mozilla.org", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-787"}], "source": "nvd@nist.gov", "type": "Primary"}]}

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