nvd-json-data-feeds/CVE-2024/CVE-2024-438xx/CVE-2024-43828.json

{
  "id": "CVE-2024-43828",
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "published": "2024-08-17T10:15:08.720",
  "lastModified": "2024-08-22T15:41:50.870",
  "vulnStatus": "Analyzed",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\next4: fix infinite loop when replaying fast_commit\n\nWhen doing fast_commit replay an infinite loop may occur due to an\nuninitialized extent_status struct.  ext4_ext_determine_insert_hole() does\nnot detect the replay and calls ext4_es_find_extent_range(), which will\nreturn immediately without initializing the 'es' variable.\n\nBecause 'es' contains garbage, an integer overflow may happen causing an\ninfinite loop in this function, easily reproducible using fstest generic/039.\n\nThis commit fixes this issue by unconditionally initializing the structure\nin function ext4_es_find_extent_range().\n\nThanks to Zhang Yi, for figuring out the real problem!"
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, se resolvi\u00f3 la siguiente vulnerabilidad: ext4: corrige el bucle infinito al reproducir fast_commit Al realizar la reproducci\u00f3n fast_commit, puede ocurrir un bucle infinito debido a una estructura extend_status no inicializada. ext4_ext_determine_insert_hole() no detecta la repetici\u00f3n y llama a ext4_es_find_extent_range(), que regresar\u00e1 inmediatamente sin inicializar la variable 'es'. Debido a que 'es' contiene basura, puede ocurrir un desbordamiento de enteros causando un bucle infinito en esta funci\u00f3n, f\u00e1cilmente reproducible usando fstest generic/039. Esta confirmaci\u00f3n soluciona este problema inicializando incondicionalmente la estructura en la funci\u00f3n ext4_es_find_extent_range(). \u00a1Gracias a Zhang Yi por descubrir el verdadero problema!"
    }
  ],
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        "source": "nvd@nist.gov",
        "type": "Primary",
        "cvssData": {
          "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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          "value": "CWE-835"
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