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{"acknowledgement": "Red Hat would like to thank the Mozilla project for reporting this issue. Upstream acknowledges Alexis Beingessner, Andrew McCreight, Andr\u00e9 Bargull, Byron Campen, Christian Holler, Jason Kratzer, Jesse Schwartzentruber, Jon Coppeard, Steve Fink, and Tyson Smith as the original reporters.", "affected_release": [{"advisory": "RHSA-2021:0290", "cpe": "cpe:/o:redhat:enterprise_linux:7", "package": "firefox-0:78.7.0-2.el7_9", "product_name": "Red Hat Enterprise Linux 7", "release_date": "2021-01-28T00:00:00Z"}, {"advisory": "RHSA-2021:0297", "cpe": "cpe:/o:redhat:enterprise_linux:7", "package": "thunderbird-0:78.7.0-1.el7_9", "product_name": "Red Hat Enterprise Linux 7", "release_date": "2021-01-28T00:00:00Z"}, {"advisory": "RHSA-2021:0288", "cpe": "cpe:/a:redhat:enterprise_linux:8", "package": "firefox-0:78.7.0-2.el8_3", "product_name": "Red Hat Enterprise Linux 8", "release_date": "2021-01-27T00:00:00Z"}, {"advisory": "RHSA-2021:0298", "cpe": "cpe:/a:redhat:enterprise_linux:8", "package": "thunderbird-0:78.7.0-1.el8_3", "product_name": "Red Hat Enterprise Linux 8", "release_date": "2021-01-28T00:00:00Z"}, {"advisory": "RHSA-2021:0285", "cpe": "cpe:/a:redhat:rhel_eus:8.1", "package": "firefox-0:78.7.0-2.el8_1", "product_name": "Red Hat Enterprise Linux 8.1 Extended Update Support", "release_date": "2021-01-27T00:00:00Z"}, {"advisory": "RHSA-2021:0397", "cpe": "cpe:/a:redhat:rhel_eus:8.1", "package": "thunderbird-0:78.7.0-1.el8_1", "product_name": "Red Hat Enterprise Linux 8.1 Extended Update Support", "release_date": "2021-02-03T00:00:00Z"}, {"advisory": "RHSA-2021:0289", "cpe": "cpe:/a:redhat:rhel_eus:8.2", "package": "firefox-0:78.7.0-2.el8_2", "product_name": "Red Hat Enterprise Linux 8.2 Extended Update Support", "release_date": "2021-01-27T00:00:00Z"}, {"advisory": "RHSA-2021:0299", "cpe": "cpe:/a:redhat:rhel_eus:8.2", "package": "thunderbird-0:78.7.0-1.el8_2", "product_name": "Red Hat Enterprise Linux 8.2 Extended Update Support", "release_date": "2021-01-28T00:00:00Z"}], "bugzilla": {"description": "Mozilla: Memory safety bugs fixed in Firefox 85 and Firefox ESR 78.7", "id": "1920651", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1920651"}, "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-120", "details": ["Mozilla developers reported memory safety bugs present in Firefox 84 and Firefox ESR 78.6. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects Firefox < 85, Thunderbird < 78.7, and Firefox ESR < 78.7.", "The Mozilla Foundation Security Advisory describes this flaw as:\nMozilla developers reported memory safety bugs present in Firefox 84 and Firefox ESR 78.6. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code."], "name": "CVE-2021-23964", "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": "2021-01-26T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2021-23964\nhttps://nvd.nist.gov/vuln/detail/CVE-2021-23964\nhttps://www.mozilla.org/en-US/security/advisories/mfsa2021-04/#CVE-2021-23964"], "threat_severity": "Important", "upstream_fix": "thunderbird 78.7, firefox 78.7"}