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CVE-2018-14609

Estado: ModificadaMedia (5.5)—

Se ha descubierto un problema en el kernel de Linux hasta la versión 4.17.10. Existe una desreferencia de puntero no válido en __del_reloc_root() en fs/btrfs/relocation.c cuando se monta una imagen btrfs manipulada. Esto está relacionado con eliminar el reloc rb_trees cuando el control de reloc no se ha inicializado.

CVSS

Probabilidad de explotación (EPSS)

EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).

Tecnologías afectadas (3)

Canonical — Ubuntu LinuxDebian — Debian LinuxLinux — Linux Kernel

CWE

Referencias

JSON original (NVD)

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  "id": "CVE-2018-14609",
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          "baseScore": 7.1,
          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:M/Au:N/C:N/I:N/A:C",
          "authentication": "NONE",
          "integrityImpact": "NONE",
          "accessComplexity": "MEDIUM",
          "availabilityImpact": "COMPLETE",
          "confidentialityImpact": "NONE"
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        "impactScore": 6.9,
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        "obtainAllPrivilege": false,
        "exploitabilityScore": 8.6,
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          "vectorString": "CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H",
          "integrityImpact": "NONE",
          "userInteraction": "REQUIRED",
          "attackComplexity": "LOW",
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          "privilegesRequired": "NONE",
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        "impactScore": 3.6,
        "exploitabilityScore": 1.8
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  "affected": [
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      "affectedData": [
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          "versions": [
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  "published": "2018-07-27T04:29:00.233",
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      "value": "An issue was discovered in the Linux kernel through 4.17.10. There is an invalid pointer dereference in __del_reloc_root() in fs/btrfs/relocation.c when mounting a crafted btrfs image, related to removing reloc rb_trees when reloc control has not been initialized."
    },
    {
      "lang": "es",
      "value": "Se ha descubierto un problema en el kernel de Linux hasta la versión 4.17.10. Existe una desreferencia de puntero no válido en __del_reloc_root() en fs/btrfs/relocation.c cuando se monta una imagen btrfs manipulada. Esto está relacionado con eliminar el reloc rb_trees cuando el control de reloc no se ha inicializado."
    }
  ],
  "lastModified": "2026-06-17T01:41:16.777",
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}