fkie_cve-2022-49451
Vulnerability from fkie_nvd
Published
2025-02-26 07:01
Modified
2025-10-01 20:16
Summary
In the Linux kernel, the following vulnerability has been resolved: firmware: arm_scmi: Fix list protocols enumeration in the base protocol While enumerating protocols implemented by the SCMI platform using BASE_DISCOVER_LIST_PROTOCOLS, the number of returned protocols is currently validated in an improper way since the check employs a sum between unsigned integers that could overflow and cause the check itself to be silently bypassed if the returned value 'loop_num_ret' is big enough. Fix the validation avoiding the addition.



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  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nfirmware: arm_scmi: Fix list protocols enumeration in the base protocol\n\nWhile enumerating protocols implemented by the SCMI platform using\nBASE_DISCOVER_LIST_PROTOCOLS, the number of returned protocols is\ncurrently validated in an improper way since the check employs a sum\nbetween unsigned integers that could overflow and cause the check itself\nto be silently bypassed if the returned value \u0027loop_num_ret\u0027 is big\nenough.\n\nFix the validation avoiding the addition."
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: firmware: arm_scmi: Se corrige la enumeraci\u00f3n de protocolos de lista en el protocolo base Al enumerar protocolos implementados por la plataforma SCMI utilizando BASE_DISCOVER_LIST_PROTOCOLS, la cantidad de protocolos devueltos actualmente se valida de manera incorrecta ya que la verificaci\u00f3n emplea una suma entre n\u00fameros enteros sin signo que podr\u00eda desbordarse y hacer que la verificaci\u00f3n en s\u00ed se omita silenciosamente si el valor devuelto \u0027loop_num_ret\u0027 es lo suficientemente grande. Arregle la validaci\u00f3n evitando la suma."
    }
  ],
  "id": "CVE-2022-49451",
  "lastModified": "2025-10-01T20:16:21.027",
  "metrics": {
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          "attackComplexity": "LOW",
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          "availabilityImpact": "HIGH",
          "baseScore": 5.5,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
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  "published": "2025-02-26T07:01:21.490",
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  "vulnStatus": "Modified",
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}


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