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CVE-2019-5163

Estado: ModificadaAlta (7.5)—

An exploitable denial-of-service vulnerability exists in the UDPRelay functionality of Shadowsocks-libev 3.3.2. When utilizing a Stream Cipher and a local_address, arbitrary UDP packets can cause a FATAL error code path and exit. An attacker can send arbitrary UDP packets to trigger this vulnerability.

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 (3)

Opensuse — BackportsOpensuse — LeapShadowsocks — Shadowsocks-libev

CWE

Referencias

JSON original (NVD)

Mostrar
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  "id": "CVE-2019-5163",
  "cveTags": [],
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          "baseScore": 4.3,
          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:M/Au:N/C:N/I:N/A:P",
          "authentication": "NONE",
          "integrityImpact": "NONE",
          "accessComplexity": "MEDIUM",
          "availabilityImpact": "PARTIAL",
          "confidentialityImpact": "NONE"
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        "acInsufInfo": false,
        "impactScore": 2.9,
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        "obtainAllPrivilege": false,
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          "vectorString": "CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H",
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          "attackComplexity": "HIGH",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "NONE",
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  "affected": [
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      "affectedData": [
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          "vendor": "n/a",
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  "published": "2019-12-03T22:15:15.370",
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  "vulnStatus": "Modified",
  "weaknesses": [
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      "source": "talos-cna@cisco.com",
      "description": [
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          "lang": "en",
          "value": "CWE-306"
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      ]
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  "descriptions": [
    {
      "lang": "en",
      "value": "An exploitable denial-of-service vulnerability exists in the UDPRelay functionality of Shadowsocks-libev 3.3.2. When utilizing a Stream Cipher and a local_address, arbitrary UDP packets can cause a FATAL error code path and exit. An attacker can send arbitrary UDP packets to trigger this vulnerability."
    },
    {
      "lang": "es",
      "value": "Hay una vulnerabilidad de denegación de servicio explotable en la funcionalidad UDPRelay de Shadowsocks-libev versión 3.3.2. Cuando se utiliza un Cifrado de Flujo y un local_address, unos paquetes UDP arbitrarios pueden causar una ruta de código de error FATAL y salir. Un atacante puede enviar paquetes UDP arbitrarios para activar esta vulnerabilidad."
    }
  ],
  "lastModified": "2026-06-17T02:37:14.533",
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}