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{"cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nALSA: pcm: oss: Fix negative period/buffer sizes\n\nThe period size calculation in OSS layer may receive a negative value\nas an error, but the code there assumes only the positive values and\nhandle them with size_t. Due to that, a too big value may be passed\nto the lower layers.\n\nThis patch changes the code to handle with ssize_t and adds the proper\nerror checks appropriately."}, {"lang": "es", "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: ALSA: pcm: oss: corrige tama\u00f1os de per\u00edodo/b\u00fafer negativos El c\u00e1lculo del tama\u00f1o del per\u00edodo en la capa OSS puede recibir un valor negativo como error, pero el c\u00f3digo all\u00ed asume solo los valores positivos y manejarlos con size_t. Debido a esto, es posible que se pase un valor demasiado grande a las capas inferiores. Este parche cambia el c\u00f3digo para manejar con ssize_t y agrega las comprobaciones de errores adecuadas."}], "id": "CVE-2021-47511", "lastModified": "2024-11-04T21:35:01.830", "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": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary"}]}, "published": "2024-05-24T15:15:12.237", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/00a860678098fcd9fa8db2b5fb9d2ddf4776d4cc"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/02b2b691b77cd7b951fa7b6c9d44d4e472cdc823"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/502e1146873d870f87da3b8f93d6bf2de5f38d0c"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/8af815ab052eaf74addbbfb556d63ce2137c0e1b"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/9d2479c960875ca1239bcb899f386970c13d9cfe"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/be8869d388593e57223ad39297c8e54be632f2f2"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/f12c8a7515f641885677960af450082569a87243"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/f96c0959c1ee92adc911c10d6ec209af50105049"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Awaiting Analysis"}

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