CVE-2023-4458

{"id": "CVE-2023-4458", "cveTags": [], "metrics": {"cvssMetricV31": [{"type": "Secondary", "source": "patrick@puiterwijk.org", "cvssData": {"scope": "CHANGED", "version": "3.1", "baseScore": 4.0, "attackVector": "NETWORK", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:N/A:N", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "HIGH", "availabilityImpact": "NONE", "privilegesRequired": "NONE", "confidentialityImpact": "LOW"}, "impactScore": 1.4, "exploitabilityScore": 2.2}, {"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 7.5, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "NONE", "confidentialityImpact": "HIGH"}, "impactScore": 3.6, "exploitabilityScore": 3.9}]}, "published": "2024-11-14T12:15:17.487", "references": [{"url": "https://access.redhat.com/security/cve/CVE-2023-4458", "tags": ["Vendor Advisory"], "source": "patrick@puiterwijk.org"}, {"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2325516", "tags": ["Issue Tracking", "Vendor Advisory"], "source": "patrick@puiterwijk.org"}, {"url": "https://www.zerodayinitiative.com/advisories/ZDI-24-590/", "tags": ["Third Party Advisory"], "source": "patrick@puiterwijk.org"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Secondary", "source": "patrick@puiterwijk.org", "description": [{"lang": "en", "value": "CWE-125"}]}], "descriptions": [{"lang": "en", "value": "A flaw was found within the parsing of extended attributes in the kernel ksmbd module. The issue results from the lack of proper validation of user-supplied data, which can result in a read past the end of an allocated buffer. An attacker can leverage this to disclose sensitive information on affected installations of Linux. Only systems with ksmbd enabled are vulnerable to this CVE."}, {"lang": "es", "value": "Se encontr\u00f3 una falla en el an\u00e1lisis de atributos extendidos en el m\u00f3dulo ksmbd del kernel. El problema es el resultado de la falta de una validaci\u00f3n adecuada de los datos proporcionados por el usuario, lo que puede provocar una lectura m\u00e1s all\u00e1 del final de un b\u00fafer asignado. Un atacante puede aprovechar esto para divulgar informaci\u00f3n confidencial sobre las instalaciones afectadas de Linux. Solo los sistemas con ksmbd habilitado son vulnerables a esta CVE."}], "lastModified": "2025-08-19T17:32:26.033", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "9D42A7C6-CE38-4D73-B7AC-615F6D53F783", "versionEndExcluding": "6.6"}], "operator": "OR"}]}], "sourceIdentifier": "patrick@puiterwijk.org"}