fkie_cve-2022-49032
Vulnerability from fkie_nvd
Published
2024-10-21 20:15
Modified
2024-10-24 16:04
Severity ?
7.1 (High) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
Summary
In the Linux kernel, the following vulnerability has been resolved: iio: health: afe4404: Fix oob read in afe4404_[read|write]_raw KASAN report out-of-bounds read as follows: BUG: KASAN: global-out-of-bounds in afe4404_read_raw+0x2ce/0x380 Read of size 4 at addr ffffffffc00e4658 by task cat/278 Call Trace: afe4404_read_raw iio_read_channel_info dev_attr_show The buggy address belongs to the variable: afe4404_channel_leds+0x18/0xffffffffffffe9c0 This issue can be reproduce by singe command: $ cat /sys/bus/i2c/devices/0-0058/iio\:device0/in_intensity6_raw The array size of afe4404_channel_leds and afe4404_channel_offdacs are less than channels, so access with chan->address cause OOB read in afe4404_[read|write]_raw. Fix it by moving access before use them.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/113c08030a89aaf406f8a1d4549d758a67c2afbaPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/3f566b626029ca8598d48e5074e56bb37399ca1bPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/5eb114f55b37dbc0487aa9c1913b81bb7837f1c4Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/68de7da092f38395dde523f2e5db26eba6c23e28Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/d45d9f45e7b1365fd0d9bf14680d6d5082a590d1Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/f5575041ec15310bdc50c42b8b22118cc900226ePatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/f7419fc42afc035f6b29ce713e17dcd2000c833fPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/fc92d9e3de0b2d30a3ccc08048a5fad533e4672bPatch
Impacted products
Vendor Product Version
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel 6.1
linux linux_kernel 6.1
linux linux_kernel 6.1
linux linux_kernel 6.1
linux linux_kernel 6.1
linux linux_kernel 6.1


To clipboard 

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    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\niio: health: afe4404: Fix oob read in afe4404_[read|write]_raw\n\nKASAN report out-of-bounds read as follows:\n\nBUG: KASAN: global-out-of-bounds in afe4404_read_raw+0x2ce/0x380\nRead of size 4 at addr ffffffffc00e4658 by task cat/278\n\nCall Trace:\n afe4404_read_raw\n iio_read_channel_info\n dev_attr_show\n\nThe buggy address belongs to the variable:\n afe4404_channel_leds+0x18/0xffffffffffffe9c0\n\nThis issue can be reproduce by singe command:\n\n $ cat /sys/bus/i2c/devices/0-0058/iio\\:device0/in_intensity6_raw\n\nThe array size of afe4404_channel_leds and afe4404_channel_offdacs\nare less than channels, so access with chan-\u003eaddress cause OOB read\nin afe4404_[read|write]_raw. Fix it by moving access before use them."
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: iio: health: afe4404: Se corrige la lectura oob en el informe de KASAN afe4404_[read|write]_raw de la siguiente manera: ERROR: KASAN: global-out-of-bounds en afe4404_read_raw+0x2ce/0x380 Lectura de tama\u00f1o 4 en la direcci\u00f3n ffffffffc00e4658 por la tarea cat/278 Rastreo de llamadas: afe4404_read_raw iio_read_channel_info dev_attr_show La direcci\u00f3n con errores pertenece a la variable: afe4404_channel_leds+0x18/0xffffffffffffe9c0 Este problema se puede reproducir con un solo comando: $ cat /sys/bus/i2c/devices/0-0058/iio\\:device0/in_intensity6_raw El tama\u00f1o de la matriz de afe4404_channel_leds y afe4404_channel_offdacs son menores que los canales, por lo que el acceso con chan-\u0026gt;address provoca una lectura OOB en afe4404_[read|write]_raw. Solucione este problema moviendo el acceso antes de usarlos."
    }
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  "id": "CVE-2022-49032",
  "lastModified": "2024-10-24T16:04:49.880",
  "metrics": {
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          "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"
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        "exploitabilityScore": 1.8,
        "impactScore": 5.2,
        "source": "nvd@nist.gov",
        "type": "Primary"
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  "published": "2024-10-21T20:15:13.877",
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          "value": "CWE-125"
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      "source": "nvd@nist.gov",
      "type": "Primary"
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}


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