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{"bugzilla": {"description": "harfbuzz: out-of-bounds write in hb_bit_set_invertible_t::set", "id": "2036820", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2036820"}, "csaw": false, "cvss3": {"cvss3_base_score": "6.3", "cvss3_scoring_vector": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L", "status": "draft"}, "cwe": "CWE-787", "details": ["HarfBuzz 2.9.0 has an out-of-bounds write in hb_bit_set_invertible_t::set (called from hb_sparseset_t<hb_bit_set_invertible_t>::set and hb_set_copy).", "An out-of-bounds write flaw was found in HarfBuzz, arising from a boundary error in the hb_bit_set_invertible_t::set() function when processing untrusted input. This flaw allows an attacker to create a specially crafted file, convince the victim to open it, and trigger an out-of-bounds write. In some cases, this issue could lead to the execution of arbitrary code on the target system or, more commonly, result in a denial of service attack."], "name": "CVE-2021-45931", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Not affected", "package_name": "firefox", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Not affected", "package_name": "libreoffice", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Not affected", "package_name": "thunderbird", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "harfbuzz", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "harfbuzz", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "mingw-harfbuzz", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "harfbuzz", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2022-01-01T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2021-45931\nhttps://nvd.nist.gov/vuln/detail/CVE-2021-45931\nhttps://bugs.chromium.org/p/oss-fuzz/issues/detail?id=37425"], "threat_severity": "Moderate", "upstream_fix": "harfbuzz 2.9.1"}