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{"configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "FE25FF84-C614-42A2-B1D1-02DDB269B4FC", "versionEndIncluding": "6.9.3", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nxfs: fix log recovery buffer allocation for the legacy h_size fixup\n\nCommit a70f9fe52daa (\"xfs: detect and handle invalid iclog size set by\nmkfs\") added a fixup for incorrect h_size values used for the initial\numount record in old xfsprogs versions. Later commit 0c771b99d6c9\n(\"xfs: clean up calculation of LR header blocks\") cleaned up the log\nreover buffer calculation, but stoped using the fixed up h_size value\nto size the log recovery buffer, which can lead to an out of bounds\naccess when the incorrect h_size does not come from the old mkfs\ntool, but a fuzzer.\n\nFix this by open coding xlog_logrec_hblks and taking the fixed h_size\ninto account for this calculation."}, {"lang": "es", "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: xfs: corrige la asignaci\u00f3n del b\u00fafer de recuperaci\u00f3n de registros para la correcci\u00f3n heredada de h_size. El commit a70f9fe52daa (\"xfs: detecta y maneja el tama\u00f1o de iclog no v\u00e1lido establecido por mkfs\") agreg\u00f3 una correcci\u00f3n para los valores incorrectos de h_size usados para el registro desmontaje inicial en versiones antiguas de xfsprogs. Posteriormente, el commit 0c771b99d6c9 (\"xfs: c\u00e1lculo de limpieza de bloques de encabezado LR\") limpi\u00f3 el c\u00e1lculo del b\u00fafer de recuperaci\u00f3n de registros, pero dej\u00f3 de usar el valor h_size fijo para dimensionar el b\u00fafer de recuperaci\u00f3n de registros, lo que puede provocar un acceso fuera de los l\u00edmites cuando el h_size incorrecto no proviene de la antigua herramienta mkfs, sino de un fuzzer. Solucione este problema abriendo la codificaci\u00f3n xlog_logrec_hblks y teniendo en cuenta el h_size fijo para este c\u00e1lculo."}], "id": "CVE-2024-39472", "lastModified": "2024-11-21T09:27:44.303", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 5.5, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 3.6, "source": "[email protected]", "type": "Primary"}]}, "published": "2024-07-05T07:15:10.020", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Mailing List", "Patch"], "url": "https://git.kernel.org/stable/c/45cf976008ddef4a9c9a30310c9b4fb2a9a6602a"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/57835c0e7152e36b03875dd6c56dfeed685c1b1f"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/c2389c074973aa94e34992e7f66dac0de37595b5"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/f754591b17d0ee91c2b45fe9509d0cdc420527cb"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Mailing List", "Patch"], "url": "https://git.kernel.org/stable/c/45cf976008ddef4a9c9a30310c9b4fb2a9a6602a"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-770"}], "source": "[email protected]", "type": "Primary"}]}

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