CVE-2019-11691

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{"affected": [{"affectedData": [{"product": "Thunderbird", "vendor": "Mozilla", "versions": [{"lessThan": "60.7", "status": "affected", "version": "unspecified", "versionType": "custom"}]}, {"product": "Firefox", "vendor": "Mozilla", "versions": [{"lessThan": "67", "status": "affected", "version": "unspecified", "versionType": "custom"}]}, {"product": "Firefox ESR", "vendor": "Mozilla", "versions": [{"lessThan": "60.7", "status": "affected", "version": "unspecified", "versionType": "custom"}]}], "source": "security@mozilla.org"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:*", "matchCriteriaId": "83DEE955-3E09-489F-BE40-2FD33EACF436", "versionEndExcluding": "67.0", "vulnerable": true}, {"criteria": "cpe:2.3:a:mozilla:firefox_esr:*:*:*:*:*:*:*:*", "matchCriteriaId": "0AE86A15-DB39-4AA7-992B-FEBC77C52CF3", "versionEndExcluding": "60.7", "vulnerable": true}, {"criteria": "cpe:2.3:a:mozilla:thunderbird:*:*:*:*:*:*:*:*", "matchCriteriaId": "FD578CD5-6B23-4339-BE6F-4FC336F890B2", "versionEndExcluding": "60.7", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "A use-after-free vulnerability can occur when working with XMLHttpRequest (XHR) in an event loop, causing the XHR main thread to be called after it has been freed. This results in a potentially exploitable crash. This vulnerability affects Thunderbird < 60.7, Firefox < 67, and Firefox ESR < 60.7."}, {"lang": "es", "value": "Puede ocurrir una vulnerabilidad de uso despu\u00e9s de liberarse cuando se trabaja con XMLHttpRequest (XHR) en un bucle de eventos, lo que hace que se llame al subproceso principal de XHR despu\u00e9s de que se haya liberado. Esto da lugar a una ca\u00edda potencialmente explotable. Esta vulnerabilidad afecta a Thunderbird inferior a 60.7, Firefox inferior a 67 y Firefox ESR inferior a 60.7 .."}], "id": "CVE-2019-11691", "lastModified": "2026-06-17T02:13:26.080", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "HIGH", "cvssData": {"accessComplexity": "LOW", "accessVector": "NETWORK", "authentication": "NONE", "availabilityImpact": "PARTIAL", "baseScore": 7.5, "confidentialityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:P", "version": "2.0"}, "exploitabilityScore": 10.0, "impactScore": 6.4, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": false}], "cvssMetricV30": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 9.8, "baseSeverity": "CRITICAL", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "version": "3.0"}, "exploitabilityScore": 3.9, "impactScore": 5.9, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2019-07-23T14:15:13.903", "references": [{"source": "security@mozilla.org", "tags": ["Issue Tracking", "Permissions Required", "Vendor Advisory"], "url": "https://bugzilla.mozilla.org/show_bug.cgi?id=1542465"}, {"source": "security@mozilla.org", "tags": ["Vendor Advisory"], "url": "https://www.mozilla.org/security/advisories/mfsa2019-13/"}, {"source": "security@mozilla.org", "tags": ["Vendor Advisory"], "url": "https://www.mozilla.org/security/advisories/mfsa2019-14/"}, {"source": "security@mozilla.org", "tags": ["Vendor Advisory"], "url": "https://www.mozilla.org/security/advisories/mfsa2019-15/"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Issue Tracking", "Permissions Required", "Vendor Advisory"], "url": "https://bugzilla.mozilla.org/show_bug.cgi?id=1542465"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Vendor Advisory"], "url": "https://www.mozilla.org/security/advisories/mfsa2019-13/"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Vendor Advisory"], "url": "https://www.mozilla.org/security/advisories/mfsa2019-14/"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Vendor Advisory"], "url": "https://www.mozilla.org/security/advisories/mfsa2019-15/"}], "sourceIdentifier": "security@mozilla.org", "vulnStatus": "Modified", "weaknesses": [{"description": [{"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 Nils as the original reporter.", "affected_release": [{"advisory": "RHSA-2019:1267", "cpe": "cpe:/o:redhat:enterprise_linux:6", "package": "firefox-0:60.7.0-1.el6_10", "product_name": "Red Hat Enterprise Linux 6", "release_date": "2019-05-23T00:00:00Z"}, {"advisory": "RHSA-2019:1310", "cpe": "cpe:/o:redhat:enterprise_linux:6", "package": "thunderbird-0:60.7.0-1.el6_10", "product_name": "Red Hat Enterprise Linux 6", "release_date": "2019-06-03T00:00:00Z"}, {"advisory": "RHSA-2019:1265", "cpe": "cpe:/o:redhat:enterprise_linux:7", "package": "firefox-0:60.7.0-1.el7_6", "product_name": "Red Hat Enterprise Linux 7", "release_date": "2019-05-23T00:00:00Z"}, {"advisory": "RHSA-2019:1309", "cpe": "cpe:/o:redhat:enterprise_linux:7", "package": "thunderbird-0:60.7.0-1.el7_6", "product_name": "Red Hat Enterprise Linux 7", "release_date": "2019-06-03T00:00:00Z"}, {"advisory": "RHSA-2019:1269", "cpe": "cpe:/a:redhat:enterprise_linux:8", "package": "firefox-0:60.7.0-1.el8_0", "product_name": "Red Hat Enterprise Linux 8", "release_date": "2019-05-23T00:00:00Z"}, {"advisory": "RHSA-2019:1308", "cpe": "cpe:/a:redhat:enterprise_linux:8", "package": "thunderbird-0:60.7.0-1.el8_0", "product_name": "Red Hat Enterprise Linux 8", "release_date": "2019-06-03T00:00:00Z"}], "bugzilla": {"description": "Mozilla: Use-after-free in XMLHttpRequest", "id": "1712617", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1712617"}, "csaw": false, "cvss3": {"cvss3_base_score": "9.8", "cvss3_scoring_vector": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "status": "verified"}, "cwe": "CWE-416", "details": ["A use-after-free vulnerability can occur when working with XMLHttpRequest (XHR) in an event loop, causing the XHR main thread to be called after it has been freed. This results in a potentially exploitable crash. This vulnerability affects Thunderbird < 60.7, Firefox < 67, and Firefox ESR < 60.7."], "name": "CVE-2019-11691", "public_date": "2019-05-22T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2019-11691\nhttps://nvd.nist.gov/vuln/detail/CVE-2019-11691\nhttps://www.mozilla.org/en-US/security/advisories/mfsa2019-14/#CVE-2019-11691"], "statement": "In general, this flaw cannot be exploited through email in Thunderbird because scripting is disabled when reading mail, but it is potentially a risk in browser or browser-like contexts.", "threat_severity": "Important"}

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