fkie_cve-2021-47474
Vulnerability from fkie_nvd
Published
2024-05-22 09:15
Modified
2025-09-24 18:51
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: comedi: vmk80xx: fix bulk-buffer overflow The driver is using endpoint-sized buffers but must not assume that the tx and rx buffers are of equal size or a malicious device could overflow the slab-allocated receive buffer when doing bulk transfers.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/063f576c43d589a4c153554b681d32b3f8317c7bPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/0866dcaa828c21bc2f94dac00e086078f11b5772Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/1ae4715121a57bc6fa29fd992127b01907f2f993Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/47b4636ebdbeba2044b3db937c4d2b6a4fe3d0f2Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/78cdfd62bd54af615fba9e3ca1ba35de39d3871dPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/7b0e356189327287d0eb98ec081bd6dd97068cd3Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/7cfb35db607760698d299fd1cf7402dfa8f09973Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/b7fd7f3387f070215e6be341e68eb5c087eeecc0Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/e0e6a63fd97ad95fe05dfd77268a1952551e11a7Patch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/063f576c43d589a4c153554b681d32b3f8317c7bPatch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/0866dcaa828c21bc2f94dac00e086078f11b5772Patch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/1ae4715121a57bc6fa29fd992127b01907f2f993Patch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/47b4636ebdbeba2044b3db937c4d2b6a4fe3d0f2Patch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/78cdfd62bd54af615fba9e3ca1ba35de39d3871dPatch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/7b0e356189327287d0eb98ec081bd6dd97068cd3Patch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/7cfb35db607760698d299fd1cf7402dfa8f09973Patch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/b7fd7f3387f070215e6be341e68eb5c087eeecc0Patch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/e0e6a63fd97ad95fe05dfd77268a1952551e11a7Patch
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 *


To clipboard 

{
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
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              "matchCriteriaId": "41FE03A0-D680-4E4E-86C7-020EEF6DCD99",
              "versionEndExcluding": "4.4.292",
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              "vulnerable": true
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          "negate": false,
          "operator": "OR"
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  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ncomedi: vmk80xx: fix bulk-buffer overflow\n\nThe driver is using endpoint-sized buffers but must not assume that the\ntx and rx buffers are of equal size or a malicious device could overflow\nthe slab-allocated receive buffer when doing bulk transfers."
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, se resolvi\u00f3 la siguiente vulnerabilidad: comedi: vmk80xx: corrige el desbordamiento masivo del b\u00fafer El controlador utiliza b\u00faferes del tama\u00f1o de un endpoint, pero no debe asumir que los b\u00faferes tx y rx son del mismo tama\u00f1o o un dispositivo malicioso podr\u00eda desbordar el b\u00fafer de recepci\u00f3n asignado por losa al realizar transferencias masivas."
    }
  ],
  "id": "CVE-2021-47474",
  "lastModified": "2025-09-24T18:51:48.063",
  "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": "2024-05-22T09:15:09.287",
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  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Analyzed",
  "weaknesses": [
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      "description": [
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          "lang": "en",
          "value": "CWE-787"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}


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