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{"acknowledgement": "Red Hat would like to thank the Mozilla project for reporting this issue. Upstream acknowledges Andreas Pehrson as the original reporter.", "affected_release": [{"advisory": "RHSA-2021:0656", "cpe": "cpe:/o:redhat:enterprise_linux:7", "package": "firefox-0:78.8.0-1.el7_9", "product_name": "Red Hat Enterprise Linux 7", "release_date": "2021-02-24T00:00:00Z"}, {"advisory": "RHSA-2021:0661", "cpe": "cpe:/o:redhat:enterprise_linux:7", "package": "thunderbird-0:78.8.0-1.el7_9", "product_name": "Red Hat Enterprise Linux 7", "release_date": "2021-02-24T00:00:00Z"}, {"advisory": "RHSA-2021:0655", "cpe": "cpe:/a:redhat:enterprise_linux:8", "package": "firefox-0:78.8.0-1.el8_3", "product_name": "Red Hat Enterprise Linux 8", "release_date": "2021-02-24T00:00:00Z"}, {"advisory": "RHSA-2021:0657", "cpe": "cpe:/a:redhat:enterprise_linux:8", "package": "thunderbird-0:78.8.0-1.el8_3", "product_name": "Red Hat Enterprise Linux 8", "release_date": "2021-02-24T00:00:00Z"}, {"advisory": "RHSA-2021:0658", "cpe": "cpe:/a:redhat:rhel_eus:8.1", "package": "thunderbird-0:78.8.0-1.el8_1", "product_name": "Red Hat Enterprise Linux 8.1 Extended Update Support", "release_date": "2021-02-24T00:00:00Z"}, {"advisory": "RHSA-2021:0659", "cpe": "cpe:/a:redhat:rhel_eus:8.1", "package": "firefox-0:78.8.0-1.el8_1", "product_name": "Red Hat Enterprise Linux 8.1 Extended Update Support", "release_date": "2021-02-24T00:00:00Z"}, {"advisory": "RHSA-2021:0660", "cpe": "cpe:/a:redhat:rhel_eus:8.2", "package": "firefox-0:78.8.0-1.el8_2", "product_name": "Red Hat Enterprise Linux 8.2 Extended Update Support", "release_date": "2021-02-24T00:00:00Z"}, {"advisory": "RHSA-2021:0662", "cpe": "cpe:/a:redhat:rhel_eus:8.2", "package": "thunderbird-0:78.8.0-1.el8_2", "product_name": "Red Hat Enterprise Linux 8.2 Extended Update Support", "release_date": "2021-02-24T00:00:00Z"}], "bugzilla": {"description": "Mozilla: MediaError message property could have leaked information about cross-origin resources", "id": "1932111", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1932111"}, "csaw": false, "cvss3": {"cvss3_base_score": "6.5", "cvss3_scoring_vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N", "status": "verified"}, "cwe": "CWE-209", "details": ["When trying to load a cross-origin resource in an audio/video context a decoding error may have resulted, and the content of that error may have revealed information about the resource. This vulnerability affects Firefox < 86, Thunderbird < 78.8, and Firefox ESR < 78.8."], "name": "CVE-2021-23973", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Out of support scope", "package_name": "firefox", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Out of support scope", "package_name": "thunderbird", "product_name": "Red Hat Enterprise Linux 6"}], "public_date": "2021-02-23T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2021-23973\nhttps://nvd.nist.gov/vuln/detail/CVE-2021-23973\nhttps://www.mozilla.org/en-US/security/advisories/mfsa2021-08/#CVE-2021-23973"], "threat_severity": "Low", "upstream_fix": "thunderbird 78.8, firefox 78.8"}