nvd-json-data-feeds/CVE-2024/CVE-2024-410xx/CVE-2024-41055.json

{
  "id": "CVE-2024-41055",
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "published": "2024-07-29T15:15:13.620",
  "lastModified": "2024-11-21T09:32:09.107",
  "vulnStatus": "Modified",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmm: prevent derefencing NULL ptr in pfn_section_valid()\n\nCommit 5ec8e8ea8b77 (\"mm/sparsemem: fix race in accessing\nmemory_section->usage\") changed pfn_section_valid() to add a READ_ONCE()\ncall around \"ms->usage\" to fix a race with section_deactivate() where\nms->usage can be cleared.  The READ_ONCE() call, by itself, is not enough\nto prevent NULL pointer dereference.  We need to check its value before\ndereferencing it."
    },
    {
      "lang": "es",
      "value": " En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: mm: evita la eliminaci\u00f3n de la referencia NULL ptr en pfn_section_valid() La confirmaci\u00f3n 5ec8e8ea8b77 (\"mm/sparsemem: corrige la ejecuci\u00f3n al acceder a la secci\u00f3n_memoria->uso\") cambi\u00f3 pfn_section_valid() para agregar un READ_ONCE() llame a \"ms->usage\" para arreglar una ejecuci\u00f3n con section_deactivate() donde se puede borrar ms->usage. La llamada READ_ONCE(), por s\u00ed sola, no es suficiente para evitar la desreferencia al puntero NULL. Necesitamos comprobar su valor antes de desreferenciarlo."
    }
  ],
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        "source": "nvd@nist.gov",
        "type": "Primary",
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          "version": "3.1",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
          "baseScore": 5.5,
          "baseSeverity": "MEDIUM",
          "attackVector": "LOCAL",
          "attackComplexity": "LOW",
          "privilegesRequired": "LOW",
          "userInteraction": "NONE",
          "scope": "UNCHANGED",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "availabilityImpact": "HIGH"
        },
        "exploitabilityScore": 1.8,
        "impactScore": 3.6
      }
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      "source": "nvd@nist.gov",
      "type": "Primary",
      "description": [
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          "lang": "en",
          "value": "CWE-476"
        }
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