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{"bugzilla": {"description": "hw: amd: TOCTOU (time-of-check to time-of-use) vulnerability cause memory out of bound results in a denial of service", "id": "2164382", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2164382"}, "csaw": false, "cvss3": {"cvss3_base_score": "1.9", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:N/I:N/A:L", "status": "draft"}, "details": ["A TOCTOU (time-of-check to time-of-use) vulnerability exists where an attacker may use a compromised BIOS to cause the TEE OS to read memory out of bounds that could potentially result in a denial of service.", "A Time-of-check to time-of-use (TOCTOU) vulnerability exists in hw. This flaw allows an attacker to use a compromised BIOS to cause the trusted execution environment (TEE) operating system to read memory out-of-bounds, potentially resulting in a denial of service."], "mitigation": {"lang": "en:us", "value": "Please contact AMD for more updates on this flaw."}, "name": "CVE-2021-46795", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2023-01-10T06:30:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2021-46795\nhttps://nvd.nist.gov/vuln/detail/CVE-2021-46795\nhttps://www.amd.com/en/corporate/product-security/bulletin/amd-sb-1031"], "threat_severity": "Low"}