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CVE-2018-1083

Estado: ModificadaAlta (7.8)—

Zsh en versiones anteriores a la 5.4.2-test-1 es vulnerable a un desbordamiento de búfer en la funcionalidad de autocompletar del shell. Un usuario local sin privilegios puede crear una ruta de directorio especialmente manipulada que dé lugar a la ejecución de código en el contexto de un usuario que trata de emplear el autocompletado para crear un salto de directorio a la localización mencionada. Si el usuario en cuestión tiene privilegios, esta situación puede dar lugar a un escalado de privilegios.

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 (6)

Canonical — Ubuntu LinuxDebian — Debian LinuxRedhat — Enterprise Linux DesktopRedhat — Enterprise Linux ServerRedhat — Enterprise Linux WorkstationZSH — ZSH

CWE

Referencias

JSON original (NVD)

Mostrar
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  "id": "CVE-2018-1083",
  "cveTags": [],
  "metrics": {
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        "type": "Primary",
        "source": "nvd@nist.gov",
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          "baseScore": 7.2,
          "accessVector": "LOCAL",
          "vectorString": "AV:L/AC:L/Au:N/C:C/I:C/A:C",
          "authentication": "NONE",
          "integrityImpact": "COMPLETE",
          "accessComplexity": "LOW",
          "availabilityImpact": "COMPLETE",
          "confidentialityImpact": "COMPLETE"
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        "acInsufInfo": false,
        "impactScore": 10,
        "baseSeverity": "HIGH",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 3.9,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
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          "vectorString": "CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
          "integrityImpact": "HIGH",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "confidentialityImpact": "HIGH"
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        "exploitabilityScore": 1.8
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          "versions": [
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  "published": "2018-03-28T13:29:00.213",
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          "value": "CWE-120"
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      "description": [
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      "lang": "en",
      "value": "Zsh before version 5.4.2-test-1 is vulnerable to a buffer overflow in the shell autocomplete functionality. A local unprivileged user can create a specially crafted directory path which leads to code execution in the context of the user who tries to use autocomplete to traverse the before mentioned path. If the user affected is privileged, this leads to privilege escalation."
    },
    {
      "lang": "es",
      "value": "Zsh en versiones anteriores a la 5.4.2-test-1 es vulnerable a un desbordamiento de búfer en la funcionalidad de autocompletar del shell. Un usuario local sin privilegios puede crear una ruta de directorio especialmente manipulada que dé lugar a la ejecución de código en el contexto de un usuario que trata de emplear el autocompletado para crear un salto de directorio a la localización mencionada. Si el usuario en cuestión tiene privilegios, esta situación puede dar lugar a un escalado de privilegios."
    }
  ],
  "lastModified": "2026-06-17T01:50:26.490",
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