FKIE_CVE-2024-35840

Vulnerability from fkie_nvd - Published: 2024-05-17 15:15 - Updated: 2025-09-24 21:00
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: mptcp: use OPTION_MPTCP_MPJ_SYNACK in subflow_finish_connect() subflow_finish_connect() uses four fields (backup, join_id, thmac, none) that may contain garbage unless OPTION_MPTCP_MPJ_SYNACK has been set in mptcp_parse_option()
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/413b913507326972135d2977975dbff8b7f2c453Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/51e4cb032d49ce094605f27e45eabebc0408893cPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/76e8de7273a22a00d27e9b8b7d4d043d6433416aPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/ad3e8f5c3d5c53841046ef7a947c04ad45a20721Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/be1d9d9d38da922bd4beeec5b6dd821ff5a1dfebPatch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/413b913507326972135d2977975dbff8b7f2c453Patch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/51e4cb032d49ce094605f27e45eabebc0408893cPatch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/76e8de7273a22a00d27e9b8b7d4d043d6433416aPatch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/ad3e8f5c3d5c53841046ef7a947c04ad45a20721Patch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/be1d9d9d38da922bd4beeec5b6dd821ff5a1dfebPatch
Impacted products
Vendor Product Version
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
To clipboard 

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              "matchCriteriaId": "7926486C-925B-489E-9474-87044AA8542E",
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  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmptcp: use OPTION_MPTCP_MPJ_SYNACK in subflow_finish_connect()\n\nsubflow_finish_connect() uses four fields (backup, join_id, thmac, none)\nthat may contain garbage unless OPTION_MPTCP_MPJ_SYNACK has been set\nin mptcp_parse_option()"
    },
    {
      "lang": "es",
      "value": " En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: mptcp: use OPTION_MPTCP_MPJ_SYNACK en subflow_finish_connect() subflow_finish_connect() usa cuatro campos (backup, join_id, thmac, none) que pueden contener basura a menos que se haya configurado OPTION_MPTCP_MPJ_SYNACK en mptcp_parse_option()"
    }
  ],
  "id": "CVE-2024-35840",
  "lastModified": "2025-09-24T21:00:50.990",
  "metrics": {
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        "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"
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        "exploitabilityScore": 1.8,
        "impactScore": 3.6,
        "source": "nvd@nist.gov",
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  "published": "2024-05-17T15:15:21.090",
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  "vulnStatus": "Analyzed",
  "weaknesses": [
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          "value": "NVD-CWE-noinfo"
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      "source": "nvd@nist.gov",
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}


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  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
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