fkie_cve-2022-48927
Vulnerability from fkie_nvd
Published
2024-08-22 04:15
Modified
2024-08-23 02:05
Severity ?
7.8 (High) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Summary
In the Linux kernel, the following vulnerability has been resolved: iio: adc: tsc2046: fix memory corruption by preventing array overflow On one side we have indio_dev->num_channels includes all physical channels + timestamp channel. On other side we have an array allocated only for physical channels. So, fix memory corruption by ARRAY_SIZE() instead of num_channels variable. Note the first case is a cleanup rather than a fix as the software timestamp channel bit in active_scanmask is never set by the IIO core.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/082d2c047b0d305bb0b6e9f9d671a09470e2db2dPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/0cb9b2f73c182d242a640e512f4785c7c504512fPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/b7a78a8adaa8849c02f174d707aead0f85dca0daPatch
Impacted products
Vendor Product Version
linux linux_kernel *
linux linux_kernel *


To clipboard 

{
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "C4549DFF-A0BC-4C08-B874-F0090921E478",
              "versionEndExcluding": "5.15.26",
              "versionStartIncluding": "5.14",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "C76BAB21-7F23-4AD8-A25F-CA7B262A2698",
              "versionEndExcluding": "5.16.12",
              "versionStartIncluding": "5.16",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\niio: adc: tsc2046: fix memory corruption by preventing array overflow\n\nOn one side we have indio_dev-\u003enum_channels includes all physical channels +\ntimestamp channel. On other side we have an array allocated only for\nphysical channels. So, fix memory corruption by ARRAY_SIZE() instead of\nnum_channels variable.\n\nNote the first case is a cleanup rather than a fix as the software\ntimestamp channel bit in active_scanmask is never set by the IIO core."
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: iio: adc: tsc2046: corrige la corrupci\u00f3n de la memoria evitando el desbordamiento de la matriz. Por un lado tenemos indio_dev-\u0026gt;num_channels incluye todos los canales f\u00edsicos + canal de marca de tiempo. Del otro lado tenemos un array asignado s\u00f3lo para canales f\u00edsicos. Por lo tanto, corrija la corrupci\u00f3n de la memoria con ARRAY_SIZE() en lugar de la variable num_channels. Tenga en cuenta que el primer caso es una limpieza en lugar de una soluci\u00f3n, ya que el n\u00facleo IIO nunca establece el bit del canal de marca de tiempo del software en active_scanmask."
    }
  ],
  "id": "CVE-2022-48927",
  "lastModified": "2024-08-23T02:05:45.170",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "LOCAL",
          "availabilityImpact": "HIGH",
          "baseScore": 7.8,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 1.8,
        "impactScore": 5.9,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ]
  },
  "published": "2024-08-22T04:15:15.530",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/082d2c047b0d305bb0b6e9f9d671a09470e2db2d"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/0cb9b2f73c182d242a640e512f4785c7c504512f"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/b7a78a8adaa8849c02f174d707aead0f85dca0da"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-787"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}


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