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{"acknowledgement": "Red Hat would like to thank the Mozilla project for reporting this issue. 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"release_date": "2024-01-02T00:00:00Z"}, {"advisory": "RHSA-2024:0002", "cpe": "cpe:/a:redhat:rhel_eus:9.0", "package": "thunderbird-0:115.6.0-1.el9_0", "product_name": "Red Hat Enterprise Linux 9.0 Extended Update Support", "release_date": "2024-01-02T00:00:00Z"}, {"advisory": "RHSA-2024:0022", "cpe": "cpe:/a:redhat:rhel_eus:9.0", "package": "firefox-0:115.6.0-1.el9_0", "product_name": "Red Hat Enterprise Linux 9.0 Extended Update Support", "release_date": "2024-01-02T00:00:00Z"}, {"advisory": "RHSA-2024:0019", "cpe": "cpe:/a:redhat:rhel_eus:9.2", "package": "firefox-0:115.6.0-1.el9_2", "product_name": "Red Hat Enterprise Linux 9.2 Extended Update Support", "release_date": "2024-01-02T00:00:00Z"}, {"advisory": "RHSA-2024:0029", "cpe": "cpe:/a:redhat:rhel_eus:9.2", "package": "thunderbird-0:115.6.0-1.el9_2", "product_name": "Red Hat Enterprise Linux 9.2 Extended Update Support", "release_date": "2024-01-02T00:00:00Z"}], "bugzilla": {"description": "Mozilla: Heap buffer overflow in <code>nsTextFragment</code>", "id": "2255363", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2255363"}, "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-122", "details": ["Firefox was susceptible to a heap buffer overflow in `nsTextFragment` due to insufficient OOM handling. This vulnerability affects Firefox ESR < 115.6, Thunderbird < 115.6, and Firefox < 121.", "The Mozilla Foundation Security Advisory describes this flaw as:\nFirefox was susceptible to a heap buffer overflow in `nsTextFragment` due to insufficient OOM handling."], "name": "CVE-2023-6858", "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": "2023-12-19T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2023-6858\nhttps://nvd.nist.gov/vuln/detail/CVE-2023-6858\nhttps://www.mozilla.org/en-US/security/advisories/mfsa2023-54/#CVE-2023-6858\nhttps://www.mozilla.org/en-US/security/advisories/mfsa2023-55/#CVE-2023-6858"], "statement": "Red Hat Product Security rates the severity of this flaw as determined by the Mozilla Foundation Security Advisory.", "threat_severity": "Moderate"}