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CVE-2018-13259

Estado: ModificadaCrítica (9.8)—

Se ha descubierto un problema en versiones anteriores a la 5.6 de zsh. Las líneas Shebang que exceden los 64 estaban truncadas, lo que podría conducir a una llamada execve a un programa nombrado que es una subcadena del planeado.

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 (2)

Canonical — Ubuntu LinuxZSH — ZSH

CWE

Referencias

JSON original (NVD)

Mostrar
{
  "id": "CVE-2018-13259",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 7.5,
          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:P",
          "authentication": "NONE",
          "integrityImpact": "PARTIAL",
          "accessComplexity": "LOW",
          "availabilityImpact": "PARTIAL",
          "confidentialityImpact": "PARTIAL"
        },
        "acInsufInfo": false,
        "impactScore": 6.4,
        "baseSeverity": "HIGH",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 10,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
      }
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    "cvssMetricV30": [
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        "type": "Primary",
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          "scope": "UNCHANGED",
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          "attackVector": "NETWORK",
          "baseSeverity": "CRITICAL",
          "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
          "integrityImpact": "HIGH",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 5.9,
        "exploitabilityScore": 3.9
      }
    ]
  },
  "affected": [
    {
      "source": "security@debian.org",
      "affectedData": [
        {
          "vendor": "n/a",
          "product": "zsh before 5.6",
          "versions": [
            {
              "status": "affected",
              "version": "zsh before 5.6"
            }
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  "published": "2018-09-05T08:29:00.373",
  "references": [
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      "url": "https://access.redhat.com/errata/RHSA-2019:2017",
      "source": "security@debian.org"
    },
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      "url": "https://bugs.debian.org/908000",
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        "Mailing List",
        "Patch",
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      "source": "security@debian.org"
    },
    {
      "url": "https://lists.debian.org/debian-lts-announce/2020/12/msg00000.html",
      "source": "security@debian.org"
    },
    {
      "url": "https://security.gentoo.org/glsa/201903-02",
      "tags": [
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      "source": "security@debian.org"
    },
    {
      "url": "https://sourceforge.net/p/zsh/code/ci/1c4c7b6a4d17294df028322b70c53803a402233d",
      "tags": [
        "Patch",
        "Third Party Advisory"
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      "source": "security@debian.org"
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      "url": "https://usn.ubuntu.com/3764-1/",
      "tags": [
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      "source": "security@debian.org"
    },
    {
      "url": "https://www.zsh.org/mla/zsh-announce/136",
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      "source": "security@debian.org"
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      "source": "af854a3a-2127-422b-91ae-364da2661108"
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      "source": "af854a3a-2127-422b-91ae-364da2661108"
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    {
      "url": "https://www.zsh.org/mla/zsh-announce/136",
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        "Release Notes",
        "Vendor Advisory"
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      "source": "af854a3a-2127-422b-91ae-364da2661108"
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  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-20"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "An issue was discovered in zsh before 5.6. Shebang lines exceeding 64 characters were truncated, potentially leading to an execve call to a program name that is a substring of the intended one."
    },
    {
      "lang": "es",
      "value": "Se ha descubierto un problema en versiones anteriores a la 5.6 de zsh. Las líneas Shebang que exceden los 64 estaban truncadas, lo que podría conducir a una llamada execve a un programa nombrado que es una subcadena del planeado."
    }
  ],
  "lastModified": "2026-06-17T01:39:06.447",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
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            },
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              "matchCriteriaId": "F7016A2A-8365-4F1A-89A2-7A19F2BCAE5B"
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}