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error de c\u00f3digo en Secure_TSC, el firmware SEV puede permitir que un atacante con altos privilegios haga que un invitado observe un TSC incorrecto cuando Secure TSC est\u00e1 habilitado, lo que podr\u00eda provocar una p\u00e9rdida de integridad del invitado."}], "id": "CVE-2023-31347", "lastModified": "2025-03-17T18:15:15.370", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 4.9, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "HIGH", "privilegesRequired": "HIGH", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:N", "version": "3.1"}, "exploitabilityScore": 1.2, "impactScore": 3.6, "source": "nvd@nist.gov", "type": "Primary"}, {"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 4.9, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", 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{"acknowledgement": "Red Hat would like to thank Tom Dohrmann for reporting this issue.", "bugzilla": {"description": "kernel: Insufficient check may lead to an incorrect TSC", "id": "2250460", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2250460"}, "csaw": false, "cvss3": {"cvss3_base_score": "2.3", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:L/A:N", "status": "draft"}, "cwe": "CWE-168", "details": ["Due to a code bug in\nSecure_TSC, SEV firmware may allow an attacker with high privileges to cause a\nguest to observe an incorrect TSC when Secure TSC is enabled potentially\nresulting in a loss of guest integrity. \u00a0", "A flaw was found in some AMD Hardware due to a code bug in the Secure_TSC, SEV firmware. This flaw allows an attacker with high privileges to cause a guest to observe an incorrect TSC when Secure TSC is enabled, potentially resulting in a loss of guest integrity."], "mitigation": {"lang": "en:us", "value": "Mitigation for this issue is either not available or the currently available options don't meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability."}, "name": "CVE-2023-31347", "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:8", "fix_state": "Not affected", "package_name": "kernel", "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"}], "public_date": "2023-12-19T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2023-31347\nhttps://nvd.nist.gov/vuln/detail/CVE-2023-31347\nhttps://www.amd.com/en/resources/product-security/bulletin/amd-sb-3007.html"], "threat_severity": "Low"}

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