CVE-2015-4520

{"containers": {"cna": {"affected": [{"product": "n/a", "vendor": "n/a", "versions": [{"status": "affected", "version": "n/a"}]}], "datePublic": "2015-09-22T00:00:00.000Z", "descriptions": [{"lang": "en", "value": "Mozilla Firefox before 41.0 and Firefox ESR 38.x before 38.3 allow remote attackers to bypass CORS preflight protection mechanisms by leveraging (1) duplicate cache-key generation or (2) retrieval of a value from an incorrect HTTP Access-Control-* response header."}], "problemTypes": [{"descriptions": [{"description": "n/a", "lang": "en", "type": "text"}]}], "providerMetadata": {"dateUpdated": "2016-12-20T16:57:01.000Z", "orgId": "f16b083a-5664-49f3-a51e-8d479e5ed7fe", "shortName": "mozilla"}, "references": [{"tags": ["x_refsource_CONFIRM"], "url": "http://www.mozilla.org/security/announce/2015/mfsa2015-111.html"}, {"name": "SUSE-SU-2015:1680", "tags": ["vendor-advisory", "x_refsource_SUSE"], "url": "http://lists.opensuse.org/opensuse-security-announce/2015-10/msg00004.html"}, {"name": "SUSE-SU-2015:2081", "tags": ["vendor-advisory", "x_refsource_SUSE"], "url": "http://lists.opensuse.org/opensuse-security-announce/2015-11/msg00025.html"}, {"name": "openSUSE-SU-2015:1681", "tags": ["vendor-advisory", "x_refsource_SUSE"], "url": "http://lists.opensuse.org/opensuse-security-announce/2015-10/msg00005.html"}, {"name": "USN-2754-1", "tags": ["vendor-advisory", "x_refsource_UBUNTU"], "url": "http://www.ubuntu.com/usn/USN-2754-1"}, {"name": "USN-2743-4", "tags": ["vendor-advisory", "x_refsource_UBUNTU"], "url": "http://www.ubuntu.com/usn/USN-2743-4"}, {"tags": ["x_refsource_CONFIRM"], "url": "http://www.oracle.com/technetwork/topics/security/bulletinapr2016-2952098.html"}, {"tags": ["x_refsource_CONFIRM"], "url": "http://www.oracle.com/technetwork/topics/security/linuxbulletinoct2015-2719645.html"}, {"name": "USN-2743-3", "tags": ["vendor-advisory", "x_refsource_UBUNTU"], "url": "http://www.ubuntu.com/usn/USN-2743-3"}, {"name": "RHSA-2015:1834", "tags": ["vendor-advisory", "x_refsource_REDHAT"], "url": "http://rhn.redhat.com/errata/RHSA-2015-1834.html"}, {"name": "USN-2743-2", "tags": ["vendor-advisory", "x_refsource_UBUNTU"], "url": "http://www.ubuntu.com/usn/USN-2743-2"}, {"tags": ["x_refsource_CONFIRM"], "url": "https://bugzilla.mozilla.org/show_bug.cgi?id=1200856"}, {"tags": ["x_refsource_CONFIRM"], "url": "https://bugzilla.mozilla.org/show_bug.cgi?id=1200869"}, {"name": "1033640", "tags": ["vdb-entry", "x_refsource_SECTRACK"], "url": "http://www.securitytracker.com/id/1033640"}, {"name": "RHSA-2015:1852", "tags": ["vendor-advisory", "x_refsource_REDHAT"], "url": "http://rhn.redhat.com/errata/RHSA-2015-1852.html"}, {"name": "DSA-3365", "tags": ["vendor-advisory", "x_refsource_DEBIAN"], "url": "http://www.debian.org/security/2015/dsa-3365"}, {"name": "76816", "tags": ["vdb-entry", "x_refsource_BID"], "url": "http://www.securityfocus.com/bid/76816"}, {"name": "SUSE-SU-2015:1703", "tags": ["vendor-advisory", "x_refsource_SUSE"], "url": "http://lists.opensuse.org/opensuse-security-announce/2015-10/msg00007.html"}, {"name": "openSUSE-SU-2015:1679", "tags": ["vendor-advisory", "x_refsource_SUSE"], "url": "http://lists.opensuse.org/opensuse-security-announce/2015-10/msg00003.html"}, {"name": "openSUSE-SU-2015:1658", "tags": ["vendor-advisory", "x_refsource_SUSE"], "url": "http://lists.opensuse.org/opensuse-security-announce/2015-10/msg00000.html"}, {"name": "USN-2743-1", "tags": ["vendor-advisory", "x_refsource_UBUNTU"], "url": "http://www.ubuntu.com/usn/USN-2743-1"}], "x_legacyV4Record": {"CVE_data_meta": {"ASSIGNER": "security@mozilla.org", "ID": "CVE-2015-4520", "STATE": "PUBLIC"}, "affects": {"vendor": {"vendor_data": [{"product": {"product_data": [{"product_name": "n/a", "version": {"version_data": [{"version_value": "n/a"}]}}]}, "vendor_name": "n/a"}]}}, "data_format": "MITRE", "data_type": "CVE", "data_version": "4.0", "description": {"description_data": [{"lang": "eng", "value": "Mozilla Firefox before 41.0 and Firefox ESR 38.x before 38.3 allow remote attackers to bypass CORS preflight protection mechanisms by leveraging (1) duplicate cache-key generation or (2) retrieval of a value from an incorrect HTTP Access-Control-* response header."}]}, "problemtype": {"problemtype_data": [{"description": [{"lang": "eng", "value": "n/a"}]}]}, "references": {"reference_data": [{"name": "http://www.mozilla.org/security/announce/2015/mfsa2015-111.html", "refsource": "CONFIRM", "url": "http://www.mozilla.org/security/announce/2015/mfsa2015-111.html"}, {"name": "SUSE-SU-2015:1680", "refsource": "SUSE", "url": "http://lists.opensuse.org/opensuse-security-announce/2015-10/msg00004.html"}, {"name": "SUSE-SU-2015:2081", "refsource": "SUSE", "url": "http://lists.opensuse.org/opensuse-security-announce/2015-11/msg00025.html"}, {"name": "openSUSE-SU-2015:1681", "refsource": "SUSE", "url": "http://lists.opensuse.org/opensuse-security-announce/2015-10/msg00005.html"}, {"name": "USN-2754-1", "refsource": "UBUNTU", "url": "http://www.ubuntu.com/usn/USN-2754-1"}, {"name": "USN-2743-4", "refsource": "UBUNTU", "url": "http://www.ubuntu.com/usn/USN-2743-4"}, {"name": "http://www.oracle.com/technetwork/topics/security/bulletinapr2016-2952098.html", "refsource": "CONFIRM", "url": "http://www.oracle.com/technetwork/topics/security/bulletinapr2016-2952098.html"}, {"name": "http://www.oracle.com/technetwork/topics/security/linuxbulletinoct2015-2719645.html", "refsource": "CONFIRM", "url": "http://www.oracle.com/technetwork/topics/security/linuxbulletinoct2015-2719645.html"}, {"name": "USN-2743-3", "refsource": "UBUNTU", "url": "http://www.ubuntu.com/usn/USN-2743-3"}, {"name": "RHSA-2015:1834", "refsource": "REDHAT", "url": "http://rhn.redhat.com/errata/RHSA-2015-1834.html"}, {"name": "USN-2743-2", "refsource": "UBUNTU", "url": "http://www.ubuntu.com/usn/USN-2743-2"}, {"name": "https://bugzilla.mozilla.org/show_bug.cgi?id=1200856", "refsource": "CONFIRM", "url": "https://bugzilla.mozilla.org/show_bug.cgi?id=1200856"}, {"name": "https://bugzilla.mozilla.org/show_bug.cgi?id=1200869", "refsource": "CONFIRM", "url": "https://bugzilla.mozilla.org/show_bug.cgi?id=1200869"}, {"name": "1033640", "refsource": "SECTRACK", "url": "http://www.securitytracker.com/id/1033640"}, {"name": "RHSA-2015:1852", "refsource": "REDHAT", "url": "http://rhn.redhat.com/errata/RHSA-2015-1852.html"}, {"name": "DSA-3365", "refsource": "DEBIAN", "url": "http://www.debian.org/security/2015/dsa-3365"}, {"name": "76816", "refsource": "BID", "url": "http://www.securityfocus.com/bid/76816"}, {"name": "SUSE-SU-2015:1703", "refsource": "SUSE", "url": "http://lists.opensuse.org/opensuse-security-announce/2015-10/msg00007.html"}, {"name": "openSUSE-SU-2015:1679", "refsource": "SUSE", "url": "http://lists.opensuse.org/opensuse-security-announce/2015-10/msg00003.html"}, {"name": "openSUSE-SU-2015:1658", "refsource": "SUSE", "url": "http://lists.opensuse.org/opensuse-security-announce/2015-10/msg00000.html"}, {"name": "USN-2743-1", "refsource": "UBUNTU", "url": "http://www.ubuntu.com/usn/USN-2743-1"}]}}}, "adp": [{"providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-06T06:18:11.566Z"}, "title": "CVE Program Container", "references": [{"tags": ["x_refsource_CONFIRM", "x_transferred"], "url": "http://www.mozilla.org/security/announce/2015/mfsa2015-111.html"}, {"name": "SUSE-SU-2015:1680", "tags": ["vendor-advisory", "x_refsource_SUSE", "x_transferred"], "url": "http://lists.opensuse.org/opensuse-security-announce/2015-10/msg00004.html"}, {"name": "SUSE-SU-2015:2081", "tags": ["vendor-advisory", "x_refsource_SUSE", "x_transferred"], "url": "http://lists.opensuse.org/opensuse-security-announce/2015-11/msg00025.html"}, {"name": "openSUSE-SU-2015:1681", "tags": ["vendor-advisory", "x_refsource_SUSE", "x_transferred"], "url": "http://lists.opensuse.org/opensuse-security-announce/2015-10/msg00005.html"}, {"name": "USN-2754-1", "tags": ["vendor-advisory", "x_refsource_UBUNTU", "x_transferred"], "url": "http://www.ubuntu.com/usn/USN-2754-1"}, {"name": "USN-2743-4", "tags": ["vendor-advisory", "x_refsource_UBUNTU", "x_transferred"], "url": "http://www.ubuntu.com/usn/USN-2743-4"}, {"tags": ["x_refsource_CONFIRM", "x_transferred"], "url": "http://www.oracle.com/technetwork/topics/security/bulletinapr2016-2952098.html"}, {"tags": ["x_refsource_CONFIRM", "x_transferred"], "url": "http://www.oracle.com/technetwork/topics/security/linuxbulletinoct2015-2719645.html"}, {"name": "USN-2743-3", "tags": ["vendor-advisory", "x_refsource_UBUNTU", "x_transferred"], "url": "http://www.ubuntu.com/usn/USN-2743-3"}, {"name": "RHSA-2015:1834", "tags": ["vendor-advisory", "x_refsource_REDHAT", "x_transferred"], "url": "http://rhn.redhat.com/errata/RHSA-2015-1834.html"}, {"name": "USN-2743-2", "tags": ["vendor-advisory", "x_refsource_UBUNTU", "x_transferred"], "url": "http://www.ubuntu.com/usn/USN-2743-2"}, {"tags": ["x_refsource_CONFIRM", "x_transferred"], "url": "https://bugzilla.mozilla.org/show_bug.cgi?id=1200856"}, {"tags": ["x_refsource_CONFIRM", "x_transferred"], "url": "https://bugzilla.mozilla.org/show_bug.cgi?id=1200869"}, {"name": "1033640", "tags": ["vdb-entry", "x_refsource_SECTRACK", "x_transferred"], "url": "http://www.securitytracker.com/id/1033640"}, {"name": "RHSA-2015:1852", "tags": ["vendor-advisory", "x_refsource_REDHAT", "x_transferred"], "url": "http://rhn.redhat.com/errata/RHSA-2015-1852.html"}, {"name": "DSA-3365", "tags": ["vendor-advisory", "x_refsource_DEBIAN", "x_transferred"], "url": "http://www.debian.org/security/2015/dsa-3365"}, {"name": "76816", "tags": ["vdb-entry", "x_refsource_BID", "x_transferred"], "url": "http://www.securityfocus.com/bid/76816"}, {"name": "SUSE-SU-2015:1703", "tags": ["vendor-advisory", "x_refsource_SUSE", "x_transferred"], "url": "http://lists.opensuse.org/opensuse-security-announce/2015-10/msg00007.html"}, {"name": "openSUSE-SU-2015:1679", "tags": ["vendor-advisory", "x_refsource_SUSE", "x_transferred"], "url": "http://lists.opensuse.org/opensuse-security-announce/2015-10/msg00003.html"}, {"name": "openSUSE-SU-2015:1658", "tags": ["vendor-advisory", "x_refsource_SUSE", "x_transferred"], "url": "http://lists.opensuse.org/opensuse-security-announce/2015-10/msg00000.html"}, {"name": "USN-2743-1", "tags": ["vendor-advisory", "x_refsource_UBUNTU", "x_transferred"], "url": "http://www.ubuntu.com/usn/USN-2743-1"}]}]}, "cveMetadata": {"assignerOrgId": "f16b083a-5664-49f3-a51e-8d479e5ed7fe", "assignerShortName": "mozilla", "cveId": "CVE-2015-4520", "datePublished": "2015-09-24T01:00:00.000Z", "dateReserved": "2015-06-10T00:00:00.000Z", "dateUpdated": "2024-08-06T06:18:11.566Z", "state": "PUBLISHED"}, "dataType": "CVE_RECORD", "dataVersion": "5.1"}

{}

{"affected": [{"affectedData": [{"product": "n/a", "vendor": "n/a", "versions": [{"status": "affected", "version": "n/a"}]}], "source": "security@mozilla.org"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:mozilla:firefox:38.0:*:*:*:*:*:*:*", "matchCriteriaId": "35BF0AFB-26BA-4BEA-B6B8-11CF88E951DE", "vulnerable": true}, {"criteria": "cpe:2.3:a:mozilla:firefox:38.0.1:*:*:*:*:*:*:*", "matchCriteriaId": "1F007CC6-9391-4E1C-A747-F3DE5E572FA5", "vulnerable": true}, {"criteria": "cpe:2.3:a:mozilla:firefox:38.0.5:*:*:*:*:*:*:*", "matchCriteriaId": "45E9641F-430C-4B3A-BD63-EC13DBD3D1E4", "vulnerable": true}, {"criteria": "cpe:2.3:a:mozilla:firefox:38.1.0:*:*:*:*:*:*:*", "matchCriteriaId": "5AADD23B-A8AF-4679-990D-C29A1D6EB5CD", "vulnerable": true}, {"criteria": "cpe:2.3:a:mozilla:firefox:38.1.1:*:*:*:*:*:*:*", "matchCriteriaId": "1343A1FD-98CF-4A6C-A697-1253E538FD5C", "vulnerable": true}, {"criteria": "cpe:2.3:a:mozilla:firefox:38.2.0:*:*:*:*:*:*:*", "matchCriteriaId": "6D098567-B55E-4EAC-8FAA-31FAFDD4058F", "vulnerable": true}, {"criteria": "cpe:2.3:a:mozilla:firefox:38.2.1:*:*:*:*:*:*:*", "matchCriteriaId": "BE0389BC-D295-4957-8AE7-EDAC770F596D", "vulnerable": true}], "negate": false, "operator": "OR"}]}, {"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:*", "matchCriteriaId": "4EE7B0EF-4A3A-4353-8B50-6F28B5CADBDB", "versionEndIncluding": "40.0.3", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "Mozilla Firefox before 41.0 and Firefox ESR 38.x before 38.3 allow remote attackers to bypass CORS preflight protection mechanisms by leveraging (1) duplicate cache-key generation or (2) retrieval of a value from an incorrect HTTP Access-Control-* response header."}, {"lang": "es", "value": "Vulnerabilidad en Mozilla Firefox en versiones anteriores a 41.0 y Firefox ESR 38.x en versiones anteriores a 38.3, permite a atacantes remotos eludir los mecanismos de protecci\u00f3n de verificaci\u00f3n CORS preflight aprovechando la (1) generaci\u00f3n de cache-key duplicada o (2) recuperaci\u00f3n de un valor desde una respuesta de cabecera HTTP Acces-Control-* incorrecta."}], "id": "CVE-2015-4520", "lastModified": "2026-06-17T00:27:28.773", "metrics": {"cvssMetricV2": [{"acInsufInfo": true, "baseSeverity": "MEDIUM", "cvssData": {"accessComplexity": "LOW", "accessVector": "NETWORK", "authentication": "NONE", "availabilityImpact": "NONE", "baseScore": 6.4, "confidentialityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:N", "version": "2.0"}, "exploitabilityScore": 10.0, "impactScore": 4.9, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": false}]}, "published": "2015-09-24T04:59:19.253", "references": [{"source": "security@mozilla.org", "url": "http://lists.opensuse.org/opensuse-security-announce/2015-10/msg00000.html"}, {"source": "security@mozilla.org", "url": "http://lists.opensuse.org/opensuse-security-announce/2015-10/msg00003.html"}, {"source": "security@mozilla.org", "url": "http://lists.opensuse.org/opensuse-security-announce/2015-10/msg00004.html"}, {"source": "security@mozilla.org", "url": "http://lists.opensuse.org/opensuse-security-announce/2015-10/msg00005.html"}, {"source": "security@mozilla.org", "url": "http://lists.opensuse.org/opensuse-security-announce/2015-10/msg00007.html"}, {"source": "security@mozilla.org", "url": "http://lists.opensuse.org/opensuse-security-announce/2015-11/msg00025.html"}, {"source": "security@mozilla.org", "url": "http://rhn.redhat.com/errata/RHSA-2015-1834.html"}, {"source": "security@mozilla.org", "url": "http://rhn.redhat.com/errata/RHSA-2015-1852.html"}, {"source": "security@mozilla.org", "url": "http://www.debian.org/security/2015/dsa-3365"}, {"source": "security@mozilla.org", "tags": ["Vendor Advisory"], "url": "http://www.mozilla.org/security/announce/2015/mfsa2015-111.html"}, {"source": "security@mozilla.org", "url": "http://www.oracle.com/technetwork/topics/security/bulletinapr2016-2952098.html"}, {"source": "security@mozilla.org", "url": "http://www.oracle.com/technetwork/topics/security/linuxbulletinoct2015-2719645.html"}, {"source": "security@mozilla.org", "url": "http://www.securityfocus.com/bid/76816"}, {"source": "security@mozilla.org", "url": "http://www.securitytracker.com/id/1033640"}, {"source": "security@mozilla.org", "url": "http://www.ubuntu.com/usn/USN-2743-1"}, {"source": "security@mozilla.org", "url": "http://www.ubuntu.com/usn/USN-2743-2"}, {"source": "security@mozilla.org", "url": "http://www.ubuntu.com/usn/USN-2743-3"}, {"source": "security@mozilla.org", "url": "http://www.ubuntu.com/usn/USN-2743-4"}, {"source": "security@mozilla.org", "url": "http://www.ubuntu.com/usn/USN-2754-1"}, {"source": "security@mozilla.org", "url": "https://bugzilla.mozilla.org/show_bug.cgi?id=1200856"}, {"source": "security@mozilla.org", "url": "https://bugzilla.mozilla.org/show_bug.cgi?id=1200869"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "http://lists.opensuse.org/opensuse-security-announce/2015-10/msg00000.html"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "http://lists.opensuse.org/opensuse-security-announce/2015-10/msg00003.html"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "http://lists.opensuse.org/opensuse-security-announce/2015-10/msg00004.html"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "http://lists.opensuse.org/opensuse-security-announce/2015-10/msg00005.html"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "http://lists.opensuse.org/opensuse-security-announce/2015-10/msg00007.html"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "http://lists.opensuse.org/opensuse-security-announce/2015-11/msg00025.html"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "http://rhn.redhat.com/errata/RHSA-2015-1834.html"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "http://rhn.redhat.com/errata/RHSA-2015-1852.html"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "http://www.debian.org/security/2015/dsa-3365"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Vendor Advisory"], "url": "http://www.mozilla.org/security/announce/2015/mfsa2015-111.html"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "http://www.oracle.com/technetwork/topics/security/bulletinapr2016-2952098.html"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "http://www.oracle.com/technetwork/topics/security/linuxbulletinoct2015-2719645.html"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "http://www.securityfocus.com/bid/76816"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "http://www.securitytracker.com/id/1033640"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "http://www.ubuntu.com/usn/USN-2743-1"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "http://www.ubuntu.com/usn/USN-2743-2"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "http://www.ubuntu.com/usn/USN-2743-3"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "http://www.ubuntu.com/usn/USN-2743-4"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "http://www.ubuntu.com/usn/USN-2754-1"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://bugzilla.mozilla.org/show_bug.cgi?id=1200856"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://bugzilla.mozilla.org/show_bug.cgi?id=1200869"}], "sourceIdentifier": "security@mozilla.org", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-254"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"acknowledgement": "Red Hat would like to thank Mozilla project for reporting this issue. Upstream acknowledges Ehsan Akhgari as the original reporter.", "affected_release": [{"advisory": "RHSA-2015:1834", "cpe": "cpe:/o:redhat:enterprise_linux:5", "package": "firefox-0:38.3.0-2.el5_11", "product_name": "Red Hat Enterprise Linux 5", "release_date": "2015-09-22T00:00:00Z"}, {"advisory": "RHSA-2015:1852", "cpe": "cpe:/o:redhat:enterprise_linux:5", "package": "thunderbird-0:38.3.0-1.el5_11", "product_name": "Red Hat Enterprise Linux 5", "release_date": "2015-10-01T00:00:00Z"}, {"advisory": "RHSA-2015:1834", "cpe": "cpe:/o:redhat:enterprise_linux:6", "package": "firefox-0:38.3.0-2.el6_7", "product_name": "Red Hat Enterprise Linux 6", "release_date": "2015-09-22T00:00:00Z"}, {"advisory": "RHSA-2015:1852", "cpe": "cpe:/o:redhat:enterprise_linux:6", "package": "thunderbird-0:38.3.0-1.el6_7", "product_name": "Red Hat Enterprise Linux 6", "release_date": "2015-10-01T00:00:00Z"}, {"advisory": "RHSA-2015:1834", "cpe": "cpe:/o:redhat:enterprise_linux:7", "package": "firefox-0:38.3.0-2.ael7b_1", "product_name": "Red Hat Enterprise Linux 7", "release_date": "2015-09-22T00:00:00Z"}, {"advisory": "RHSA-2015:1852", "cpe": "cpe:/o:redhat:enterprise_linux:7", "package": "thunderbird-0:38.3.0-1.el7_1", "product_name": "Red Hat Enterprise Linux 7", "release_date": "2015-10-01T00:00:00Z"}], "bugzilla": {"description": "Mozilla: Errors in the handling of CORS preflight request headers (MFSA 2015-111)", "id": "1265781", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1265781"}, "csaw": false, "cvss": {"cvss_base_score": "6.8", "cvss_scoring_vector": "AV:N/AC:M/Au:N/C:P/I:P/A:P", "status": "verified"}, "cwe": "CWE-284", "details": ["Mozilla Firefox before 41.0 and Firefox ESR 38.x before 38.3 allow remote attackers to bypass CORS preflight protection mechanisms by leveraging (1) duplicate cache-key generation or (2) retrieval of a value from an incorrect HTTP Access-Control-* response header."], "name": "CVE-2015-4520", "public_date": "2015-09-22T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2015-4520\nhttps://nvd.nist.gov/vuln/detail/CVE-2015-4520\nhttps://www.mozilla.org/en-US/security/advisories/mfsa2015-111/"], "threat_severity": "Important"}

{}