CVE-2020-12405

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This vulnerability affects Thunderbird < 68.9.0, Firefox < 77, and Firefox ESR < 68.9."}, {"lang": "es", "value": "Cuando se navega una p\u00e1gina maliciosa, podr\u00eda ocurrir una condici\u00f3n de carrera en nuestro SharedWorkerService y conllevar a un bloqueo potencialmente explotable. Esta vulnerabilidad afecta a Thunderbird versiones anteriores a 68.9.0, Firefox versiones anteriores a 77 y Firefox ESR versiones anteriores a 68.9"}], "id": "CVE-2020-12405", "lastModified": "2026-06-17T02:51:46.380", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "LOW", "cvssData": {"accessComplexity": "HIGH", "accessVector": "NETWORK", "authentication": "NONE", "availabilityImpact": "PARTIAL", "baseScore": 2.6, "confidentialityImpact": "NONE", "integrityImpact": "NONE", "vectorString": "AV:N/AC:H/Au:N/C:N/I:N/A:P", "version": "2.0"}, "exploitabilityScore": 4.9, "impactScore": 2.9, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": true}], "cvssMetricV31": [{"cvssData": {"attackComplexity": "HIGH", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 5.3, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 1.6, "impactScore": 3.6, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2020-07-09T15:15:10.943", "references": [{"source": "security@mozilla.org", "tags": ["Exploit", "Issue Tracking", "Vendor Advisory"], "url": "https://bugzilla.mozilla.org/show_bug.cgi?id=1631618"}, {"source": "security@mozilla.org", "tags": ["Third Party Advisory"], "url": "https://usn.ubuntu.com/4421-1/"}, {"source": "security@mozilla.org", "tags": ["Vendor Advisory"], "url": "https://www.mozilla.org/security/advisories/mfsa2020-20/"}, {"source": "security@mozilla.org", "tags": ["Vendor Advisory"], "url": "https://www.mozilla.org/security/advisories/mfsa2020-21/"}, {"source": "security@mozilla.org", "tags": ["Vendor Advisory"], "url": "https://www.mozilla.org/security/advisories/mfsa2020-22/"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Exploit", "Issue Tracking", "Vendor Advisory"], "url": "https://bugzilla.mozilla.org/show_bug.cgi?id=1631618"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Third Party Advisory"], "url": "https://usn.ubuntu.com/4421-1/"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Vendor Advisory"], "url": "https://www.mozilla.org/security/advisories/mfsa2020-20/"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Vendor Advisory"], "url": "https://www.mozilla.org/security/advisories/mfsa2020-21/"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Vendor Advisory"], "url": "https://www.mozilla.org/security/advisories/mfsa2020-22/"}], "sourceIdentifier": "security@mozilla.org", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-362"}, {"lang": "en", "value": "CWE-416"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"acknowledgement": "Red Hat would like to thank the Mozilla project for reporting this issue. Upstream acknowledges Marcin 'Icewall' Noga (Cisco Talos) as the original reporter.", "affected_release": [{"advisory": "RHSA-2020:2378", "cpe": "cpe:/o:redhat:enterprise_linux:6", "package": "firefox-0:68.9.0-1.el6_10", "product_name": "Red Hat Enterprise Linux 6", "release_date": "2020-06-03T00:00:00Z"}, {"advisory": "RHSA-2020:2613", "cpe": "cpe:/o:redhat:enterprise_linux:6", "package": "thunderbird-0:68.9.0-1.el6_10", "product_name": "Red Hat Enterprise Linux 6", "release_date": "2020-06-19T00:00:00Z"}, {"advisory": "RHSA-2020:2381", "cpe": "cpe:/o:redhat:enterprise_linux:7", "package": "firefox-0:68.9.0-1.el7_8", "product_name": "Red Hat Enterprise Linux 7", "release_date": "2020-06-03T00:00:00Z"}, {"advisory": "RHSA-2020:2615", "cpe": "cpe:/o:redhat:enterprise_linux:7", "package": "thunderbird-0:68.9.0-1.el7_8", "product_name": "Red Hat Enterprise Linux 7", "release_date": "2020-06-22T00:00:00Z"}, {"advisory": "RHSA-2020:2379", "cpe": "cpe:/a:redhat:enterprise_linux:8", "package": "firefox-0:68.9.0-1.el8_2", "product_name": "Red Hat Enterprise Linux 8", "release_date": "2020-06-03T00:00:00Z"}, {"advisory": "RHSA-2020:2614", "cpe": "cpe:/a:redhat:enterprise_linux:8", "package": "thunderbird-0:68.9.0-1.el8_2", "product_name": "Red Hat Enterprise Linux 8", "release_date": "2020-06-22T00:00:00Z"}, {"advisory": "RHSA-2020:2382", "cpe": "cpe:/a:redhat:rhel_e4s:8.0", "package": "firefox-0:68.9.0-1.el8_0", "product_name": "Red Hat Enterprise Linux 8.0 Update Services for SAP Solutions", "release_date": "2020-06-03T00:00:00Z"}, {"advisory": "RHSA-2020:2616", "cpe": "cpe:/a:redhat:rhel_e4s:8.0", "package": "thunderbird-0:68.9.0-1.el8_0", "product_name": "Red Hat Enterprise Linux 8.0 Update Services for SAP Solutions", "release_date": "2020-06-19T00:00:00Z"}, {"advisory": "RHSA-2020:2380", "cpe": "cpe:/a:redhat:rhel_eus:8.1", "package": "firefox-0:68.9.0-1.el8_1", "product_name": "Red Hat Enterprise Linux 8.1 Extended Update Support", "release_date": "2020-06-03T00:00:00Z"}, {"advisory": "RHSA-2020:2611", "cpe": "cpe:/a:redhat:rhel_eus:8.1", "package": "thunderbird-0:68.9.0-1.el8_1", "product_name": "Red Hat Enterprise Linux 8.1 Extended Update Support", "release_date": "2020-06-19T00:00:00Z"}], "bugzilla": {"description": "Mozilla: Use-after-free in SharedWorkerService", "id": "1843313", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1843313"}, "csaw": false, "cvss3": {"cvss3_base_score": "5.3", "cvss3_scoring_vector": "CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:N/A:H", "status": "verified"}, "cwe": "CWE-416", "details": ["When browsing a malicious page, a race condition in our SharedWorkerService could occur and lead to a potentially exploitable crash. This vulnerability affects Thunderbird < 68.9.0, Firefox < 77, and Firefox ESR < 68.9.", "The Mozilla Foundation Security Advisory describes this flaw as:\nWhen browsing a malicious page, a race condition in our SharedWorkerService could occur and lead to a potentially exploitable crash."], "name": "CVE-2020-12405", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:5", "fix_state": "Out of support scope", "package_name": "firefox", "product_name": "Red Hat Enterprise Linux 5"}, {"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": "2020-06-02T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2020-12405\nhttps://nvd.nist.gov/vuln/detail/CVE-2020-12405\nhttps://www.mozilla.org/en-US/security/advisories/mfsa2020-21/#CVE-2020-12405"], "threat_severity": "Important"}

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