fkie_cve-2024-56745
Vulnerability from fkie_nvd
Published
2024-12-29 12:15
Modified
2025-01-07 22:47
Severity ?
5.5 (Medium) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Summary
In the Linux kernel, the following vulnerability has been resolved: PCI: Fix reset_method_store() memory leak In reset_method_store(), a string is allocated via kstrndup() and assigned to the local "options". options is then used in with strsep() to find spaces: while ((name = strsep(&options, " ")) != NULL) { If there are no remaining spaces, then options is set to NULL by strsep(), so the subsequent kfree(options) doesn't free the memory allocated via kstrndup(). Fix by using a separate tmp_options to iterate with strsep() so options is preserved.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/2985b1844f3f3447f2d938eff1ef6762592065a5Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/403efb4457c0c8f8f51e904cc57d39193780c6bdPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/543d0eb40e45c6a51f1bff02f417b602e54472d5Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/8e098baf6bc3f3a6aefc383509aba07e202f7ee0Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/931d07ccffcc3614f20aaf602b31e89754e21c59Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/fe6fae61f3b993160aef5fe2b7141a83872c144fPatch
Impacted products
Vendor Product Version
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *


To clipboard 

{
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "005C9407-09BA-46F6-A8A9-A04EED9F948E",
              "versionEndExcluding": "5.15.174",
              "versionStartIncluding": "5.15",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "09AC6122-E2A4-40FE-9D33-268A1B2EC265",
              "versionEndExcluding": "6.1.120",
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          ],
          "negate": false,
          "operator": "OR"
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      ]
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  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nPCI: Fix reset_method_store() memory leak\n\nIn reset_method_store(), a string is allocated via kstrndup() and assigned\nto the local \"options\". options is then used in with strsep() to find\nspaces:\n\n  while ((name = strsep(\u0026options, \" \")) != NULL) {\n\nIf there are no remaining spaces, then options is set to NULL by strsep(),\nso the subsequent kfree(options) doesn\u0027t free the memory allocated via\nkstrndup().\n\nFix by using a separate tmp_options to iterate with strsep() so options is\npreserved."
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: PCI: Corregir p\u00e9rdida de memoria de reset_method_store() En reset_method_store(), se asigna una cadena a trav\u00e9s de kstrndup() y se asigna a las \"opciones\" locales. Luego, se usa options con strsep() para buscar espacios: while ((name = strsep(\u0026amp;options, \" \")) != NULL) { Si no quedan espacios, strsep() establece options en NULL, por lo que el kfree(options) posterior no libera la memoria asignada a trav\u00e9s de kstrndup(). Se soluciona utilizando un tmp_options separado para iterar con strsep() de modo que se preserve options."
    }
  ],
  "id": "CVE-2024-56745",
  "lastModified": "2025-01-07T22:47:40.577",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "LOCAL",
          "availabilityImpact": "HIGH",
          "baseScore": 5.5,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 1.8,
        "impactScore": 3.6,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ]
  },
  "published": "2024-12-29T12:15:07.937",
  "references": [
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      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
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    },
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    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-401"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}


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