CVE-2020-6795

{"containers": {"cna": {"affected": [{"product": "Thunderbird", "vendor": "Mozilla", "versions": [{"lessThan": "68.5", "status": "affected", "version": "unspecified", "versionType": "custom"}]}], "descriptions": [{"lang": "en", "value": "When processing a message that contains multiple S/MIME signatures, a bug in the MIME processing code caused a null pointer dereference, leading to an unexploitable crash. This vulnerability affects Thunderbird < 68.5."}], "problemTypes": [{"descriptions": [{"description": "Crash processing S/MIME messages with multiple signatures", "lang": "en", "type": "text"}]}], "providerMetadata": {"dateUpdated": "2020-04-29T02:06:56.000Z", "orgId": "f16b083a-5664-49f3-a51e-8d479e5ed7fe", "shortName": "mozilla"}, "references": [{"tags": ["x_refsource_MISC"], "url": "https://www.mozilla.org/security/advisories/mfsa2020-07/"}, {"tags": ["x_refsource_MISC"], "url": "https://bugzilla.mozilla.org/show_bug.cgi?id=1611105"}, {"name": "GLSA-202003-10", "tags": ["vendor-advisory", "x_refsource_GENTOO"], "url": "https://security.gentoo.org/glsa/202003-10"}, {"name": "USN-4328-1", "tags": ["vendor-advisory", "x_refsource_UBUNTU"], "url": "https://usn.ubuntu.com/4328-1/"}, {"name": "USN-4335-1", "tags": ["vendor-advisory", "x_refsource_UBUNTU"], "url": "https://usn.ubuntu.com/4335-1/"}], "x_legacyV4Record": {"CVE_data_meta": {"ASSIGNER": "security@mozilla.org", "ID": "CVE-2020-6795", "STATE": "PUBLIC"}, "affects": {"vendor": {"vendor_data": [{"product": {"product_data": [{"product_name": "Thunderbird", "version": {"version_data": [{"version_affected": "<", "version_value": "68.5"}]}}]}, "vendor_name": "Mozilla"}]}}, "data_format": "MITRE", "data_type": "CVE", "data_version": "4.0", "description": {"description_data": [{"lang": "eng", "value": "When processing a message that contains multiple S/MIME signatures, a bug in the MIME processing code caused a null pointer dereference, leading to an unexploitable crash. This vulnerability affects Thunderbird < 68.5."}]}, "problemtype": {"problemtype_data": [{"description": [{"lang": "eng", "value": "Crash processing S/MIME messages with multiple signatures"}]}]}, "references": {"reference_data": [{"name": "https://www.mozilla.org/security/advisories/mfsa2020-07/", "refsource": "MISC", "url": "https://www.mozilla.org/security/advisories/mfsa2020-07/"}, {"name": "https://bugzilla.mozilla.org/show_bug.cgi?id=1611105", "refsource": "MISC", "url": "https://bugzilla.mozilla.org/show_bug.cgi?id=1611105"}, {"name": "GLSA-202003-10", "refsource": "GENTOO", "url": "https://security.gentoo.org/glsa/202003-10"}, {"name": "USN-4328-1", "refsource": "UBUNTU", "url": "https://usn.ubuntu.com/4328-1/"}, {"name": "USN-4335-1", "refsource": "UBUNTU", "url": "https://usn.ubuntu.com/4335-1/"}]}}}, "adp": [{"providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-04T09:11:05.139Z"}, "title": "CVE Program Container", "references": [{"tags": ["x_refsource_MISC", "x_transferred"], "url": "https://www.mozilla.org/security/advisories/mfsa2020-07/"}, {"tags": ["x_refsource_MISC", "x_transferred"], "url": "https://bugzilla.mozilla.org/show_bug.cgi?id=1611105"}, {"name": "GLSA-202003-10", "tags": ["vendor-advisory", "x_refsource_GENTOO", "x_transferred"], "url": "https://security.gentoo.org/glsa/202003-10"}, {"name": "USN-4328-1", "tags": ["vendor-advisory", "x_refsource_UBUNTU", "x_transferred"], "url": "https://usn.ubuntu.com/4328-1/"}, {"name": "USN-4335-1", "tags": ["vendor-advisory", "x_refsource_UBUNTU", "x_transferred"], "url": "https://usn.ubuntu.com/4335-1/"}]}]}, "cveMetadata": {"assignerOrgId": "f16b083a-5664-49f3-a51e-8d479e5ed7fe", "assignerShortName": "mozilla", "cveId": "CVE-2020-6795", "datePublished": "2020-03-02T04:05:03.000Z", "dateReserved": "2020-01-10T00:00:00.000Z", "dateUpdated": "2024-08-04T09:11:05.139Z", "state": "PUBLISHED"}, "dataType": "CVE_RECORD", "dataVersion": "5.1"}

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{"affected": [{"affectedData": [{"product": "Thunderbird", "vendor": "Mozilla", "versions": [{"lessThan": "68.5", "status": "affected", "version": "unspecified", "versionType": "custom"}]}], "source": "security@mozilla.org"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:mozilla:thunderbird:*:*:*:*:*:*:*:*", "matchCriteriaId": "BED2E060-4B8C-403F-B1E9-D45E2511D1CA", "versionEndExcluding": "68.5.0", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "When processing a message that contains multiple S/MIME signatures, a bug in the MIME processing code caused a null pointer dereference, leading to an unexploitable crash. This vulnerability affects Thunderbird < 68.5."}, {"lang": "es", "value": "Cuando se procesa un mensaje que contiene m\u00faltiples firmas S/MIME, un bug en el c\u00f3digo de procesamiento de MIME caus\u00f3 una desreferencia de puntero null, conllevando a un bloqueo sin explotar. Esta vulnerabilidad afecta a Thunderbird versiones anteriores a 68.5."}], "id": "CVE-2020-6795", "lastModified": "2026-06-17T03:23:49.200", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "MEDIUM", "cvssData": {"accessComplexity": "MEDIUM", "accessVector": "NETWORK", "authentication": "NONE", "availabilityImpact": "PARTIAL", "baseScore": 4.3, "confidentialityImpact": "NONE", "integrityImpact": "NONE", "vectorString": "AV:N/AC:M/Au:N/C:N/I:N/A:P", "version": "2.0"}, "exploitabilityScore": 8.6, "impactScore": 2.9, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": true}], "cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 6.5, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 2.8, "impactScore": 3.6, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2020-03-02T05:15:12.353", "references": [{"source": "security@mozilla.org", "tags": ["Permissions Required"], "url": "https://bugzilla.mozilla.org/show_bug.cgi?id=1611105"}, {"source": "security@mozilla.org", "url": "https://security.gentoo.org/glsa/202003-10"}, {"source": "security@mozilla.org", "url": "https://usn.ubuntu.com/4328-1/"}, {"source": "security@mozilla.org", "url": "https://usn.ubuntu.com/4335-1/"}, {"source": "security@mozilla.org", "tags": ["Vendor Advisory"], "url": "https://www.mozilla.org/security/advisories/mfsa2020-07/"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Permissions Required"], "url": "https://bugzilla.mozilla.org/show_bug.cgi?id=1611105"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://security.gentoo.org/glsa/202003-10"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://usn.ubuntu.com/4328-1/"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://usn.ubuntu.com/4335-1/"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Vendor Advisory"], "url": "https://www.mozilla.org/security/advisories/mfsa2020-07/"}], "sourceIdentifier": "security@mozilla.org", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-476"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"acknowledgement": "Red Hat would like to thank the Mozilla project for reporting this issue. Upstream acknowledges Stephan Lauffer as the original reporter.", "affected_release": [{"advisory": "RHSA-2020:0574", "cpe": "cpe:/o:redhat:enterprise_linux:6", "package": "thunderbird-0:68.5.0-1.el6_10", "product_name": "Red Hat Enterprise Linux 6", "release_date": "2020-02-24T00:00:00Z"}, {"advisory": "RHSA-2020:0576", "cpe": "cpe:/o:redhat:enterprise_linux:7", "package": "thunderbird-0:68.5.0-1.el7_7", "product_name": "Red Hat Enterprise Linux 7", "release_date": "2020-02-24T00:00:00Z"}, {"advisory": "RHSA-2020:0577", "cpe": "cpe:/a:redhat:enterprise_linux:8", "package": "thunderbird-0:68.5.0-1.el8_1", "product_name": "Red Hat Enterprise Linux 8", "release_date": "2020-02-24T00:00:00Z"}, {"advisory": "RHSA-2020:0565", "cpe": "cpe:/a:redhat:rhel_e4s:8.0", "package": "thunderbird-0:68.5.0-1.el8_0", "product_name": "Red Hat Enterprise Linux 8.0 Update Services for SAP Solutions", "release_date": "2020-02-20T00:00:00Z"}], "bugzilla": {"description": "Mozilla: Crash processing S/MIME messages with multiple signatures", "id": "1801957", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1801957"}, "csaw": false, "cvss3": {"cvss3_base_score": "6.1", "cvss3_scoring_vector": "CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N", "status": "verified"}, "cwe": "CWE-476", "details": ["When processing a message that contains multiple S/MIME signatures, a bug in the MIME processing code caused a null pointer dereference, leading to an unexploitable crash. This vulnerability affects Thunderbird < 68.5."], "name": "CVE-2020-6795", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:5", "fix_state": "Out of support scope", "package_name": "thunderbird", "product_name": "Red Hat Enterprise Linux 5"}], "public_date": "2020-02-11T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2020-6795\nhttps://nvd.nist.gov/vuln/detail/CVE-2020-6795\nhttps://www.mozilla.org/en-US/security/advisories/mfsa2020-07/#CVE-2020-6795"], "threat_severity": "Moderate"}

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