{
  "id": "CVE-2022-49031",
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "published": "2024-10-21T20:15:13.807",
  "lastModified": "2024-10-24T16:03:12.907",
  "vulnStatus": "Analyzed",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\niio: health: afe4403: Fix oob read in afe4403_read_raw\n\nKASAN report out-of-bounds read as follows:\n\nBUG: KASAN: global-out-of-bounds in afe4403_read_raw+0x42e/0x4c0\nRead of size 4 at addr ffffffffc02ac638 by task cat/279\n\nCall Trace:\n afe4403_read_raw\n iio_read_channel_info\n dev_attr_show\n\nThe buggy address belongs to the variable:\n afe4403_channel_leds+0x18/0xffffffffffffe9e0\n\nThis issue can be reproduced by singe command:\n\n $ cat /sys/bus/spi/devices/spi0.0/iio\\:device0/in_intensity6_raw\n\nThe array size of afe4403_channel_leds is less than channels, so access\nwith chan->address cause OOB read in afe4403_read_raw. Fix it by moving\naccess before use it."
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: iio: health: afe4403: Se corrige la lectura oob en el informe de KASAN afe4403_read_raw que indica que la lectura est\u00e1 fuera de los l\u00edmites de la siguiente manera: ERROR: KASAN: global-out-of-bounds en afe4403_read_raw+0x42e/0x4c0 Lectura de tama\u00f1o 4 en la direcci\u00f3n ffffffffc02ac638 por la tarea cat/279 Seguimiento de llamadas: afe4403_read_raw iio_read_channel_info dev_attr_show La direcci\u00f3n con errores pertenece a la variable: afe4403_channel_leds+0x18/0xffffffffffffe9e0 Este problema se puede reproducir con un solo comando: $ cat /sys/bus/spi/devices/spi0.0/iio\\:device0/in_intensity6_raw El tama\u00f1o de la matriz de afe4403_channel_leds es menor que channels, por lo que el acceso con chan->address provoca una lectura OOB en afe4403_read_raw. Solucione el problema moviendo el acceso antes de usarlo."
    }
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          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H",
          "baseScore": 7.1,
          "baseSeverity": "HIGH",
          "attackVector": "LOCAL",
          "attackComplexity": "LOW",
          "privilegesRequired": "LOW",
          "userInteraction": "NONE",
          "scope": "UNCHANGED",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "NONE",
          "availabilityImpact": "HIGH"
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        "impactScore": 5.2
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