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{"bugzilla": {"description": "grub2: heap-based buffer overflow", "id": "2334772", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2334772"}, "csaw": false, "cvss3": {"cvss3_base_score": "7.8", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H", "status": "draft"}, "cwe": "CWE-122", "details": ["GNU GRUB (aka GRUB2) through 2.12 has a heap-based buffer overflow in fs/hfs.c via crafted sblock data in an HFS filesystem.", "A flaw was found in the HFS file system driver in grub2. This issue allows a local attacker to trigger a heap-based buffer overflow via a specially crafted sblock in a malicious HFS file system, causing memory corruption, unexpected behavior, and denial of service."], "mitigation": {"lang": "en:us", "value": "Do not run grub2 in an untrusted environment, specifically with a HFS file system image."}, "name": "CVE-2024-56737", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Not affected", "package_name": "grub2", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "grub2", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "grub2", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "grub2", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/a:redhat:openshift:4", "fix_state": "Not affected", "package_name": "rhcos", "product_name": "Red Hat OpenShift Container Platform 4"}], "public_date": "2024-12-29T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2024-56737\nhttps://nvd.nist.gov/vuln/detail/CVE-2024-56737\nhttps://savannah.gnu.org/bugs/?66599"], "statement": "To exploit this flaw, an attacker needs to trick a user into running grub2 with a specially crafted HFS file system image, limiting the exposure of this flaw. For this reason, this vulnerability has been rated with a Moderate severity.\nThe grub2 package as shipped in Red Hat Enterprise Linux 7, 8, 9 and in Red Hat OpenShift Container Platform 4 is not affected by this vulnerability because the HFS module is not built, so this issue is not applicable.", "threat_severity": "Moderate"}