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CVE-2022-47517

Estado: ModificadaAlta (7.5)—

An issue was discovered in the libsofia-sip fork in drachtio-server before 0.8.19. It allows remote attackers to cause a denial of service (daemon crash) via a crafted UDP message that causes a url_canonize2 heap-based buffer over-read because of an off-by-one error.

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)

Drachtio — Drachtio-server

CWE

Referencias

JSON original (NVD)

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{
  "id": "CVE-2022-47517",
  "cveTags": [],
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          "id": "CVE-2022-47517",
          "role": "CISA Coordinator",
          "options": [
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              "exploitation": "poc"
            },
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              "automatable": "yes"
            },
            {
              "technicalImpact": "partial"
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          "version": "2.0.3",
          "timestamp": "2025-04-17T18:50:50.793403Z"
        }
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    ],
    "cvssMetricV31": [
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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"
        },
        "impactScore": 3.6,
        "exploitabilityScore": 3.9
      },
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        "type": "Secondary",
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  "published": "2022-12-18T05:15:11.300",
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  "vulnStatus": "Modified",
  "weaknesses": [
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          "value": "CWE-193"
        }
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      "value": "An issue was discovered in the libsofia-sip fork in drachtio-server before 0.8.19. It allows remote attackers to cause a denial of service (daemon crash) via a crafted UDP message that causes a url_canonize2 heap-based buffer over-read because of an off-by-one error."
    },
    {
      "lang": "es",
      "value": "Se descubrió un problema en la bifurcación libsofia-sip en drachtio-server antes del 0.8.19. Permite a atacantes remotos provocar una Denegación de Servicio (DoS) (caída del daemon) a través de un mensaje UDP manipulado que provoca una sobrelectura de búfer de almacenamiento dinámico url_canonize2 debido a un error de uno por uno."
    }
  ],
  "lastModified": "2026-06-17T05:13:48.170",
  "configurations": [
    {
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        {
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          "cpeMatch": [
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              "versionEndExcluding": "0.8.19"
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  "sourceIdentifier": "cve@mitre.org"
}