CVE-2024-41013

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Esto agrega controles de sanitizaci\u00f3n para xfs_dir2_data_unused y xfs_dir2_data_entry para asegurarse de que no se desv\u00eden m\u00e1s all\u00e1 de la regi\u00f3n de memoria v\u00e1lida. Antes de parchear, el bucle simplemente verifica que el desplazamiento inicial de dup y dep est\u00e9 dentro del rango. Entonces, en una imagen manipulada, si la \u00faltima entrada es xfs_dir2_data_unused, podemos cambiar dup->length a dup->length-1 y dejar 1 byte de espacio. En el pr\u00f3ximo recorrido, este espacio se considerar\u00e1 dup o dep. Es posible que nos encontremos con una lectura fuera de los l\u00edmites al acceder a los miembros fijos. En el parche, nos aseguramos de que los bytes restantes sean lo suficientemente grandes como para contener una entrada no utilizada antes de acceder a xfs_dir2_data_unused y xfs_dir2_data_unused est\u00e9n alineados con los bytes XFS_DIR2_DATA_ALIGN. Tambi\u00e9n nos aseguramos de que los bytes restantes sean lo suficientemente grandes como para contener un directorio con un nombre de un solo byte antes de acceder a xfs_dir2_data_entry."}], "id": "CVE-2024-41013", "lastModified": "2026-06-17T07:47:05.263", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 7.1, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 5.2, "source": "nvd@nist.gov", "type": "Primary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2024-41013", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2024-09-10T16:24:52.783178Z", "version": "2.0.3"}}]}, "published": "2024-07-29T07:15:05.430", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/0c7fcdb6d06cdf8b19b57c17605215b06afa864a"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/b0932e4f9da85349d1c8f2a77d2a7a7163b8511d"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/ca96d83c93071f95cf962ce92406621a472df31b"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/0c7fcdb6d06cdf8b19b57c17605215b06afa864a"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-125"}], "source": "nvd@nist.gov", "type": "Primary"}]}

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