fkie_cve-2024-46711
Vulnerability from fkie_nvd
Published
2024-09-13 07:15
Modified
2024-09-19 13:12
Severity ?
4.7 (Medium) - CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
Summary
In the Linux kernel, the following vulnerability has been resolved: mptcp: pm: fix ID 0 endp usage after multiple re-creations 'local_addr_used' and 'add_addr_accepted' are decremented for addresses not related to the initial subflow (ID0), because the source and destination addresses of the initial subflows are known from the beginning: they don't count as "additional local address being used" or "ADD_ADDR being accepted". It is then required not to increment them when the entrypoint used by the initial subflow is removed and re-added during a connection. Without this modification, this entrypoint cannot be removed and re-added more than once.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/119806ae4e46cf239db8e6ad92bc2fd3daae86dcPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/53e2173172d26c0617b29dd83618b71664bed1fbPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/9366922adc6a71378ca01f898c41be295309f044Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/c9c744666f7308a4daba520191e29d395260bcfePatch
Impacted products
Vendor Product Version
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel 6.11
linux linux_kernel 6.11
linux linux_kernel 6.11
linux linux_kernel 6.11
linux linux_kernel 6.11


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  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmptcp: pm: fix ID 0 endp usage after multiple re-creations\n\n\u0027local_addr_used\u0027 and \u0027add_addr_accepted\u0027 are decremented for addresses\nnot related to the initial subflow (ID0), because the source and\ndestination addresses of the initial subflows are known from the\nbeginning: they don\u0027t count as \"additional local address being used\" or\n\"ADD_ADDR being accepted\".\n\nIt is then required not to increment them when the entrypoint used by\nthe initial subflow is removed and re-added during a connection. Without\nthis modification, this entrypoint cannot be removed and re-added more\nthan once."
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: mptcp: pm: se corrige el uso de ID 0 endp despu\u00e9s de m\u00faltiples recreaciones. \u0027local_addr_used\u0027 y \u0027add_addr_accepted\u0027 se decrementan para direcciones no relacionadas con el subflujo inicial (ID0), porque las direcciones de origen y destino de los subflujos iniciales se conocen desde el principio: no cuentan como \"direcci\u00f3n local adicional en uso\" o \"ADD_ADDR aceptada\". Luego, se requiere no incrementarlas cuando el punto de entrada utilizado por el subflujo inicial se elimina y se vuelve a agregar durante una conexi\u00f3n. Sin esta modificaci\u00f3n, este punto de entrada no se puede eliminar y volver a agregar m\u00e1s de una vez."
    }
  ],
  "id": "CVE-2024-46711",
  "lastModified": "2024-09-19T13:12:30.390",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "HIGH",
          "attackVector": "LOCAL",
          "availabilityImpact": "HIGH",
          "baseScore": 4.7,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 1.0,
        "impactScore": 3.6,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ]
  },
  "published": "2024-09-13T07:15:05.953",
  "references": [
    {
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      "tags": [
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  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Analyzed",
  "weaknesses": [
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      "description": [
        {
          "lang": "en",
          "value": "NVD-CWE-noinfo"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}


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