« Volver al listado

CVE-2022-50169

Estado: AnalizadaAlta (7.1)—

In the Linux kernel, the following vulnerability has been resolved:

wifi: wil6210: debugfs: fix info leak in wil_write_file_wmi()

The simple_write_to_buffer() function will succeed if even a single byte is initialized. However, we need to initialize the whole buffer to prevent information leaks. Just use memdup_user().

CVSS

Probabilidad de explotación (EPSS)

EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).

🎯 Técnicas ATT&CK

Cómo se explota esta vulnerabilidad y qué consigue el atacante, en el lenguaje de MITRE ATT&CK.

Vulnerabilidad local (AV:L, PR:L) en kernel Linux que permite lectura de información no inicializada del buffer, causando fuga de datos del kernel a un proceso de usuario con privilegios limitados.

Inferido por nuestro agente de análisis a partir de la descripción oficial, el vector CVSS y la CWE, y comprobado por un supervisor. Puede contener errores.

🛡️ Mitigaciones ATT&CK que cubren estas técnicas

Tecnologías afectadas (1)

CWE

Referencias

JSON original (NVD)

Mostrar
{
  "id": "CVE-2022-50169",
  "cveTags": [],
  "metrics": {
    "cvssMetricV31": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 7.1,
          "attackVector": "LOCAL",
          "baseSeverity": "HIGH",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H",
          "integrityImpact": "NONE",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 5.2,
        "exploitabilityScore": 1.8
      }
    ]
  },
  "affected": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "affectedData": [
        {
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "product": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "ff974e4083341383d3dd4079e52ed30f57f376f0",
              "lessThan": "c1216e699a1ce83ea005510844bd7508d34c6cef",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "ff974e4083341383d3dd4079e52ed30f57f376f0",
              "lessThan": "4615458db7793fadc6d546ac3564b36819e77a22",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "ff974e4083341383d3dd4079e52ed30f57f376f0",
              "lessThan": "60c9983425167ec5073c628d83a6875760d18059",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "ff974e4083341383d3dd4079e52ed30f57f376f0",
              "lessThan": "05ceda14ef7c73104e709c414c3680d8a59f51d4",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "ff974e4083341383d3dd4079e52ed30f57f376f0",
              "lessThan": "074e865b37da55aa87baa16d68b96896f85f8adb",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "ff974e4083341383d3dd4079e52ed30f57f376f0",
              "lessThan": "789edc1af9c1a2293956e8534bfef3d18d629de9",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "ff974e4083341383d3dd4079e52ed30f57f376f0",
              "lessThan": "67470920cd3f3cb38699b1ad23234f96bead4d21",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "ff974e4083341383d3dd4079e52ed30f57f376f0",
              "lessThan": "7a4836560a6198d245d5732e26f94898b12eb760",
              "versionType": "git"
            }
          ],
          "programFiles": [
            "drivers/net/wireless/ath/wil6210/debugfs.c"
          ],
          "defaultStatus": "unaffected"
        },
        {
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "product": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "3.17"
            },
            {
              "status": "unaffected",
              "version": "0",
              "lessThan": "3.17",
              "versionType": "semver"
            },
            {
              "status": "unaffected",
              "version": "4.14.291",
              "versionType": "semver",
              "lessThanOrEqual": "4.14.*"
            },
            {
              "status": "unaffected",
              "version": "4.19.256",
              "versionType": "semver",
              "lessThanOrEqual": "4.19.*"
            },
            {
              "status": "unaffected",
              "version": "5.4.211",
              "versionType": "semver",
              "lessThanOrEqual": "5.4.*"
            },
            {
              "status": "unaffected",
              "version": "5.10.137",
              "versionType": "semver",
              "lessThanOrEqual": "5.10.*"
            },
            {
              "status": "unaffected",
              "version": "5.15.61",
              "versionType": "semver",
              "lessThanOrEqual": "5.15.*"
            },
            {
              "status": "unaffected",
              "version": "5.18.18",
              "versionType": "semver",
              "lessThanOrEqual": "5.18.*"
            },
            {
              "status": "unaffected",
              "version": "5.19.2",
              "versionType": "semver",
              "lessThanOrEqual": "5.19.*"
            },
            {
              "status": "unaffected",
              "version": "6.0",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ],
          "programFiles": [
            "drivers/net/wireless/ath/wil6210/debugfs.c"
          ],
          "defaultStatus": "affected"
        }
      ]
    }
  ],
  "published": "2025-06-18T11:15:47.227",
  "references": [
    {
      "url": "https://git.kernel.org/stable/c/05ceda14ef7c73104e709c414c3680d8a59f51d4",
      "tags": [
        "Patch"
      ],
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/074e865b37da55aa87baa16d68b96896f85f8adb",
      "tags": [
        "Patch"
      ],
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/4615458db7793fadc6d546ac3564b36819e77a22",
      "tags": [
        "Patch"
      ],
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/60c9983425167ec5073c628d83a6875760d18059",
      "tags": [
        "Patch"
      ],
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/67470920cd3f3cb38699b1ad23234f96bead4d21",
      "tags": [
        "Patch"
      ],
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/789edc1af9c1a2293956e8534bfef3d18d629de9",
      "tags": [
        "Patch"
      ],
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/7a4836560a6198d245d5732e26f94898b12eb760",
      "tags": [
        "Patch"
      ],
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/c1216e699a1ce83ea005510844bd7508d34c6cef",
      "tags": [
        "Patch"
      ],
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ],
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-909"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: wil6210: debugfs: fix info leak in wil_write_file_wmi()\n\nThe simple_write_to_buffer() function will succeed if even a single\nbyte is initialized.  However, we need to initialize the whole buffer\nto prevent information leaks.  Just use memdup_user()."
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: wifi: wil6210: debugfs: corrección de fuga de información en wil_write_file_wmi(). La función simple_write_to_buffer() funcionará correctamente incluso si se inicializa un solo byte. Sin embargo, es necesario inicializar todo el búfer para evitar fugas de información. Simplemente use memdup_user()."
    }
  ],
  "lastModified": "2026-06-17T05:22:54.040",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "0FDE14CF-5D32-44F7-AB35-B7397EBCD348",
              "versionEndExcluding": "4.14.291",
              "versionStartIncluding": "3.17"
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "6C47CDE3-B039-4AE5-B8E4-1DC820E473FF",
              "versionEndExcluding": "4.19.256",
              "versionStartIncluding": "4.15"
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "B1C63D19-C08C-4308-A848-B2523C9275BD",
              "versionEndExcluding": "5.4.211",
              "versionStartIncluding": "4.20"
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "C2BF720F-C5EE-4DE2-9BDF-CE4CFBC767F4",
              "versionEndExcluding": "5.10.137",
              "versionStartIncluding": "5.5"
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "51861563-7F40-460F-82CD-2D3FBDAD6618",
              "versionEndExcluding": "5.15.61",
              "versionStartIncluding": "5.11"
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "5B42E453-8837-49D0-A5EF-03F818A6DC11",
              "versionEndExcluding": "5.18.18",
              "versionStartIncluding": "5.16"
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "A1A2A5A5-4598-4D7E-BA07-4660398D6C8F",
              "versionEndExcluding": "5.19.2",
              "versionStartIncluding": "5.19"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
}