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{"acknowledgement": "Red Hat would like to thank the Mozilla project for reporting this issue. Upstream acknowledges Lukas Bernhard as the original reporter.", "affected_release": [{"advisory": "RHSA-2023:5475", "cpe": "cpe:/o:redhat:enterprise_linux:7", "package": "thunderbird-0:115.3.1-1.el7_9", "product_name": "Red Hat Enterprise Linux 7", "release_date": "2023-10-05T00:00:00Z"}, {"advisory": "RHSA-2023:5477", "cpe": "cpe:/o:redhat:enterprise_linux:7", "package": "firefox-0:115.3.1-1.el7_9", "product_name": "Red Hat Enterprise Linux 7", "release_date": "2023-10-05T00:00:00Z"}, {"advisory": "RHSA-2023:5428", "cpe": "cpe:/a:redhat:enterprise_linux:8", "package": "thunderbird-0:115.3.1-1.el8_8", "product_name": "Red Hat Enterprise Linux 8", "release_date": "2023-10-04T00:00:00Z"}, {"advisory": "RHSA-2023:5433", "cpe": "cpe:/a:redhat:enterprise_linux:8", "package": "firefox-0:115.3.1-1.el8_8", "product_name": "Red Hat Enterprise Linux 8", "release_date": "2023-10-04T00:00:00Z"}, {"advisory": "RHSA-2023:5438", "cpe": "cpe:/a:redhat:rhel_e4s:8.1", "package": 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Linux 9", "release_date": "2023-10-04T00:00:00Z"}, {"advisory": "RHSA-2023:5427", "cpe": "cpe:/a:redhat:rhel_eus:9.0", "package": "firefox-0:115.3.1-1.el9_0", "product_name": "Red Hat Enterprise Linux 9.0 Extended Update Support", "release_date": "2023-10-04T00:00:00Z"}, {"advisory": "RHSA-2023:5439", "cpe": "cpe:/a:redhat:rhel_eus:9.0", "package": "thunderbird-0:115.3.1-1.el9_0", "product_name": "Red Hat Enterprise Linux 9.0 Extended Update Support", "release_date": "2023-10-04T00:00:00Z"}], "bugzilla": {"description": "Mozilla: Use-after-free in Ion Compiler", "id": "2240894", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2240894"}, "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:N/I:N/A:H", "status": "verified"}, "cwe": "CWE-416", "details": ["During Ion compilation, a Garbage Collection could have resulted in a use-after-free condition, allowing an attacker to write two NUL bytes, and cause a potentially exploitable crash. This vulnerability affects Firefox < 118, Firefox ESR < 115.3, and Thunderbird < 115.3.", "A flaw was found in Mozilla. The Mozilla Foundation Security Advisory describes this flaw as: During Ion compilation, a Garbage Collection could have resulted in a use-after-free condition, allowing an attacker to write two NULL bytes and cause a potentially exploitable crash."], "name": "CVE-2023-5171", "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": "2023-09-26T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2023-5171\nhttps://nvd.nist.gov/vuln/detail/CVE-2023-5171"], "statement": "Red Hat Product Security rates the severity of this flaw as determined by the Mozilla Foundation Security Advisory.", "threat_severity": "Important"}