{
  "id": "CVE-2020-14309",
  "sourceIdentifier": "secalert@redhat.com",
  "published": "2020-07-30T13:15:10.987",
  "lastModified": "2024-11-21T05:02:58.653",
  "vulnStatus": "Modified",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "There's an issue with grub2 in all versions before 2.06 when handling squashfs filesystems containing a symbolic link with name length of UINT32 bytes in size. The name size leads to an arithmetic overflow leading to a zero-size allocation further causing a heap-based buffer overflow with attacker controlled data."
    },
    {
      "lang": "es",
      "value": "Se presenta un problema con grub2 en todas las versiones anteriores a 2.06, cuando se manejan sistemas de archivos squashfs que contienen un enlace simb\u00f3lico con una longitud de nombre de UINT32 bytes de tama\u00f1o. El tama\u00f1o del nombre conlleva a un desbordamiento aritm\u00e9tico conllevando a una asignaci\u00f3n de tama\u00f1o cero, causando un desbordamiento del b\u00fafer en la regi\u00f3n heap de la memoria con datos controlados por el atacante"
    }
  ],
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        "type": "Primary",
        "cvssData": {
          "version": "3.1",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H",
          "baseScore": 6.7,
          "baseSeverity": "MEDIUM",
          "attackVector": "LOCAL",
          "attackComplexity": "LOW",
          "privilegesRequired": "HIGH",
          "userInteraction": "NONE",
          "scope": "UNCHANGED",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "availabilityImpact": "HIGH"
        },
        "exploitabilityScore": 0.8,
        "impactScore": 5.9
      }
    ],
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        "type": "Primary",
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          "baseScore": 4.6,
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          "accessComplexity": "LOW",
          "authentication": "NONE",
          "confidentialityImpact": "PARTIAL",
          "integrityImpact": "PARTIAL",
          "availabilityImpact": "PARTIAL"
        },
        "baseSeverity": "MEDIUM",
        "exploitabilityScore": 3.9,
        "impactScore": 6.4,
        "acInsufInfo": false,
        "obtainAllPrivilege": false,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
      }
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  "weaknesses": [
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      "source": "nvd@nist.gov",
      "type": "Primary",
      "description": [
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          "lang": "en",
          "value": "CWE-190"
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  "references": [
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      "url": "http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00016.html",
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