CVE-2017-7751

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This vulnerability affects Firefox < 54, Firefox ESR < 52.2, and Thunderbird < 52.2."}, {"lang": "es", "value": "Vulnerabilidad de uso de memoria previamente liberada en los escuchadores del visor de contenido que resulta en un cierre inesperado potencialmente explotable. La vulnerabilidad afecta a Firefox en versiones anteriores a la 54, Firefox ESR en versiones anteriores a la 52.2 y Thunderbird en versiones anteriores a la 52.2."}], "id": "CVE-2017-7751", "lastModified": "2026-06-17T01:25:07.223", "metrics": {"cvssMetricV2": [{"acInsufInfo": true, "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": "2018-06-11T21:29:07.763", "references": [{"source": "security@mozilla.org", "tags": ["Third Party Advisory", "VDB Entry"], "url": "http://www.securityfocus.com/bid/99057"}, {"source": "security@mozilla.org", "tags": ["Third Party Advisory", "VDB Entry"], "url": "http://www.securitytracker.com/id/1038689"}, {"source": "security@mozilla.org", "tags": ["Third Party Advisory"], "url": "https://access.redhat.com/errata/RHSA-2017:1440"}, {"source": "security@mozilla.org", "tags": ["Third Party Advisory"], "url": "https://access.redhat.com/errata/RHSA-2017:1561"}, {"source": "security@mozilla.org", "tags": ["Exploit", "Issue Tracking", "Vendor Advisory"], "url": "https://bugzilla.mozilla.org/show_bug.cgi?id=1363396"}, {"source": "security@mozilla.org", "tags": ["Third Party Advisory"], "url": "https://www.debian.org/security/2017/dsa-3881"}, {"source": "security@mozilla.org", "tags": ["Third Party Advisory"], "url": "https://www.debian.org/security/2017/dsa-3918"}, {"source": "security@mozilla.org", "tags": ["Vendor Advisory"], "url": "https://www.mozilla.org/security/advisories/mfsa2017-15/"}, {"source": "security@mozilla.org", "tags": ["Vendor Advisory"], "url": "https://www.mozilla.org/security/advisories/mfsa2017-16/"}, {"source": "security@mozilla.org", "tags": ["Vendor Advisory"], "url": "https://www.mozilla.org/security/advisories/mfsa2017-17/"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Third Party Advisory", "VDB Entry"], "url": "http://www.securityfocus.com/bid/99057"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Third Party Advisory", "VDB Entry"], "url": "http://www.securitytracker.com/id/1038689"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Third Party Advisory"], "url": "https://access.redhat.com/errata/RHSA-2017:1440"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Third Party Advisory"], "url": "https://access.redhat.com/errata/RHSA-2017:1561"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Exploit", "Issue Tracking", "Vendor Advisory"], "url": "https://bugzilla.mozilla.org/show_bug.cgi?id=1363396"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Third Party Advisory"], "url": "https://www.debian.org/security/2017/dsa-3881"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Third Party Advisory"], "url": "https://www.debian.org/security/2017/dsa-3918"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Vendor Advisory"], "url": "https://www.mozilla.org/security/advisories/mfsa2017-15/"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Vendor Advisory"], "url": "https://www.mozilla.org/security/advisories/mfsa2017-16/"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Vendor Advisory"], "url": "https://www.mozilla.org/security/advisories/mfsa2017-17/"}], "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-2017:1440", "cpe": "cpe:/o:redhat:enterprise_linux:6", "package": "firefox-0:52.2.0-1.el6_9", "product_name": "Red Hat Enterprise Linux 6", "release_date": "2017-06-14T00:00:00Z"}, {"advisory": "RHSA-2017:1561", "cpe": "cpe:/o:redhat:enterprise_linux:6", "package": "thunderbird-0:52.2.0-1.el6_9", "product_name": "Red Hat Enterprise Linux 6", "release_date": "2017-06-21T00:00:00Z"}, {"advisory": "RHSA-2017:1440", "cpe": "cpe:/o:redhat:enterprise_linux:7", "package": "firefox-0:52.2.0-1.el7_3", "product_name": "Red Hat Enterprise Linux 7", "release_date": "2017-06-14T00:00:00Z"}, {"advisory": "RHSA-2017:1561", "cpe": "cpe:/o:redhat:enterprise_linux:7", "package": "thunderbird-0:52.2.0-1.el7_3", "product_name": "Red Hat Enterprise Linux 7", "release_date": "2017-06-21T00:00:00Z"}], "bugzilla": {"description": "Mozilla: Use-after-free with content viewer listeners (MFSA 2017-16)", "id": "1461255", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1461255"}, "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"}, "details": ["A use-after-free vulnerability with content viewer listeners that results in a potentially exploitable crash. This vulnerability affects Firefox < 54, Firefox ESR < 52.2, and Thunderbird < 52.2."], "name": "CVE-2017-7751", "public_date": "2017-06-14T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2017-7751\nhttps://nvd.nist.gov/vuln/detail/CVE-2017-7751\nhttps://www.mozilla.org/en-US/security/advisories/mfsa2017-16/#CVE-2017-7751"], "threat_severity": "Important"}

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