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CVE-2017-9334

Estado: ModificadaAlta (7.5)—

An incorrect "pair?" check in the Scheme "length" procedure results in an unsafe pointer dereference in all CHICKEN Scheme versions prior to 4.13, which allows an attacker to cause a denial of service by passing an improper list to an application that calls "length" on it.

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 (1)

Call-cc — Chicken

CWE

Referencias

JSON original (NVD)

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{
  "id": "CVE-2017-9334",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 5,
          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:L/Au:N/C:N/I:N/A:P",
          "authentication": "NONE",
          "integrityImpact": "NONE",
          "accessComplexity": "LOW",
          "availabilityImpact": "PARTIAL",
          "confidentialityImpact": "NONE"
        },
        "acInsufInfo": true,
        "impactScore": 2.9,
        "baseSeverity": "MEDIUM",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 10,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Primary",
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        "cvssData": {
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          "baseSeverity": "HIGH",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
          "integrityImpact": "NONE",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "NONE"
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  "affected": [
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      "affectedData": [
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          "vendor": "n/a",
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          "versions": [
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              "status": "affected",
              "version": "n/a"
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  "published": "2017-06-01T05:29:00.233",
  "references": [
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      "url": "http://lists.nongnu.org/archive/html/chicken-announce/2017-05/msg00000.html",
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        "Patch",
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  "vulnStatus": "Modified",
  "weaknesses": [
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      "source": "nvd@nist.gov",
      "description": [
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          "value": "CWE-20"
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  "descriptions": [
    {
      "lang": "en",
      "value": "An incorrect \"pair?\" check in the Scheme \"length\" procedure results in an unsafe pointer dereference in all CHICKEN Scheme versions prior to 4.13, which allows an attacker to cause a denial of service by passing an improper list to an application that calls \"length\" on it."
    },
    {
      "lang": "es",
      "value": "Un chequeo de \"pair\" incorrecto en el procedimiento \"lenght\" de Scheme resulta en una desreferencia de puntero insegura en todas las versiones de CHICKEN Scheme anteriores a 4.13, lo que permite a un atacante causar una denegación de servicio pasando una lista incorrecta a una aplicación que llama a \"length\"."
    }
  ],
  "lastModified": "2026-06-17T01:27:54.433",
  "configurations": [
    {
      "nodes": [
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              "matchCriteriaId": "A2B09DD8-3AF5-4A49-89E5-8513C3061955",
              "versionEndIncluding": "4.12.0"
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          ],
          "operator": "OR"
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  "sourceIdentifier": "cve@mitre.org"
}