CVE-2020-6820

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{"acknowledgement": "Red Hat would like to thank the Mozilla project for reporting this issue. Upstream acknowledges Francisco Alonso and Javier Marcos as the original reporter.", "affected_release": [{"advisory": "RHSA-2020:1339", "cpe": "cpe:/o:redhat:enterprise_linux:6", "package": "firefox-0:68.6.1-1.el6_10", "product_name": "Red Hat Enterprise Linux 6", "release_date": "2020-04-07T00:00:00Z"}, {"advisory": "RHSA-2020:1488", "cpe": "cpe:/o:redhat:enterprise_linux:6", "package": "thunderbird-0:68.7.0-1.el6_10", "product_name": "Red Hat Enterprise Linux 6", "release_date": "2020-04-16T00:00:00Z"}, {"advisory": "RHSA-2020:1338", "cpe": "cpe:/o:redhat:enterprise_linux:7", "package": "firefox-0:68.6.1-1.el7_8", "product_name": "Red Hat Enterprise Linux 7", "release_date": "2020-04-07T00:00:00Z"}, {"advisory": "RHSA-2020:1489", "cpe": "cpe:/o:redhat:enterprise_linux:7", "package": "thunderbird-0:68.7.0-1.el7_8", "product_name": "Red Hat Enterprise Linux 7", "release_date": "2020-04-16T00:00:00Z"}, {"advisory": "RHSA-2020:1341", "cpe": "cpe:/a:redhat:enterprise_linux:8", "package": "firefox-0:68.6.1-1.el8_1", "product_name": "Red Hat Enterprise Linux 8", "release_date": "2020-04-07T00:00:00Z"}, {"advisory": "RHSA-2020:1495", "cpe": "cpe:/a:redhat:enterprise_linux:8", "package": "thunderbird-0:68.7.0-1.el8_1", "product_name": "Red Hat Enterprise Linux 8", "release_date": "2020-04-16T00:00:00Z"}, {"advisory": "RHSA-2020:1340", "cpe": "cpe:/a:redhat:rhel_e4s:8.0", "package": "firefox-0:68.6.1-1.el8_0", "product_name": "Red Hat Enterprise Linux 8.0 Update Services for SAP Solutions", "release_date": "2020-04-07T00:00:00Z"}, {"advisory": "RHSA-2020:1496", "cpe": "cpe:/a:redhat:rhel_e4s:8.0", "package": "thunderbird-0:68.7.0-1.el8_0", "product_name": "Red Hat Enterprise Linux 8.0 Update Services for SAP Solutions", "release_date": "2020-04-16T00:00:00Z"}], "bugzilla": {"description": "Mozilla: Use-after-free when handling a ReadableStream", "id": "1820878", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1820878"}, "csaw": false, "cvss3": {"cvss3_base_score": "8.8", "cvss3_scoring_vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H", "status": "verified"}, "cwe": "CWE-416", "details": ["Under certain conditions, when handling a ReadableStream, a race condition can cause a use-after-free. We are aware of targeted attacks in the wild abusing this flaw. This vulnerability affects Thunderbird < 68.7.0, Firefox < 74.0.1, and Firefox ESR < 68.6.1.", "A flaw was found in Mozilla's Firefox. A race condition can occur when handling a ReadableStream causing a use-after-free memory issue. The highest threat from this vulnerability are to data confidentiality and integrity as well as system availability."], "name": "CVE-2020-6820", "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": "2020-04-03T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2020-6820\nhttps://nvd.nist.gov/vuln/detail/CVE-2020-6820\nhttps://www.mozilla.org/en-US/security/advisories/mfsa2020-11/#CVE-2020-6820\nhttps://www.cisa.gov/known-exploited-vulnerabilities-catalog"], "threat_severity": "Critical"}

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