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{"acknowledgement": "Red Hat would like to thank the Mozilla project for reporting this issue. Upstream acknowledges Byron Campen as the original reporter.", "affected_release": [{"advisory": "RHSA-2020:2824", "cpe": "cpe:/o:redhat:enterprise_linux:6", "package": "firefox-0:68.10.0-1.el6_10", "product_name": "Red Hat Enterprise Linux 6", "release_date": "2020-07-06T00:00:00Z"}, {"advisory": "RHSA-2020:2966", "cpe": "cpe:/o:redhat:enterprise_linux:6", "package": "thunderbird-0:68.10.0-1.el6_10", "product_name": "Red Hat Enterprise Linux 6", "release_date": "2020-07-16T00:00:00Z"}, {"advisory": "RHSA-2020:2827", "cpe": "cpe:/o:redhat:enterprise_linux:7", "package": "firefox-0:68.10.0-1.el7_8", "product_name": "Red Hat Enterprise Linux 7", "release_date": "2020-07-06T00:00:00Z"}, {"advisory": "RHSA-2020:2906", "cpe": "cpe:/o:redhat:enterprise_linux:7", "package": "thunderbird-0:68.10.0-1.el7_8", "product_name": "Red Hat Enterprise Linux 7", "release_date": "2020-07-14T00:00:00Z"}, {"advisory": "RHSA-2020:2828", "cpe": "cpe:/a:redhat:enterprise_linux:8", "package": "firefox-0:68.10.0-1.el8_2", "product_name": "Red Hat Enterprise Linux 8", "release_date": "2020-07-06T00:00:00Z"}, {"advisory": "RHSA-2020:3038", "cpe": "cpe:/a:redhat:enterprise_linux:8", "package": "thunderbird-0:68.10.0-1.el8_2", "product_name": "Red Hat Enterprise Linux 8", "release_date": "2020-07-21T00:00:00Z"}, {"advisory": "RHSA-2020:2825", "cpe": "cpe:/a:redhat:rhel_e4s:8.0", "package": "firefox-0:68.10.0-1.el8_0", "product_name": "Red Hat Enterprise Linux 8.0 Update Services for SAP Solutions", "release_date": "2020-07-06T00:00:00Z"}, {"advisory": "RHSA-2020:3046", "cpe": "cpe:/a:redhat:rhel_e4s:8.0", "package": "thunderbird-0:68.10.0-1.el8_0", "product_name": "Red Hat Enterprise Linux 8.0 Update Services for SAP Solutions", "release_date": "2020-07-21T00:00:00Z"}, {"advisory": "RHSA-2020:2826", "cpe": "cpe:/a:redhat:rhel_eus:8.1", "package": "firefox-0:68.10.0-1.el8_1", "product_name": "Red Hat Enterprise Linux 8.1 Extended Update Support", "release_date": "2020-07-06T00:00:00Z"}, {"advisory": "RHSA-2020:2907", "cpe": "cpe:/a:redhat:rhel_eus:8.1", "package": "thunderbird-0:68.10.0-1.el8_1", "product_name": "Red Hat Enterprise Linux 8.1 Extended Update Support", "release_date": "2020-07-14T00:00:00Z"}], "bugzilla": {"description": "Mozilla: Use-After-Free when trying to connect to a STUN server", "id": "1853017", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1853017"}, "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": ["When trying to connect to a STUN server, a race condition could have caused a use-after-free of a pointer, leading to memory corruption and a potentially exploitable crash. This vulnerability affects Firefox ESR < 68.10, Firefox < 78, and Thunderbird < 68.10.0.", "The Mozilla Foundation Security Advisory describes this flaw as:\nWhen trying to connect to a STUN server, a race condition could have caused a use-after-free of a pointer, leading to memory corruption and a potentially exploitable crash."], "name": "CVE-2020-12420", "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": "2020-06-30T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2020-12420\nhttps://nvd.nist.gov/vuln/detail/CVE-2020-12420\nhttps://www.mozilla.org/en-US/security/advisories/mfsa2020-25/#CVE-2020-12420"], "threat_severity": "Important", "upstream_fix": "thunderbird 68.10.0, thunderbird 78, firefox 68.10"}