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CVE-2011-0766

Estado: ModificadaAlta (7.8)—

The random number generator in the Crypto application before 2.0.2.2, and SSH before 2.0.5, as used in the Erlang/OTP ssh library before R14B03, uses predictable seeds based on the current time, which makes it easier for remote attackers to guess DSA host and SSH session keys.

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)

Erlang — CryptoErlang — Erlang/otpSSH — SSH

CWE

Referencias

JSON original (NVD)

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{
  "id": "CVE-2011-0766",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 7.8,
          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:L/Au:N/C:C/I:N/A:N",
          "authentication": "NONE",
          "integrityImpact": "NONE",
          "accessComplexity": "LOW",
          "availabilityImpact": "NONE",
          "confidentialityImpact": "COMPLETE"
        },
        "acInsufInfo": false,
        "impactScore": 6.9,
        "baseSeverity": "HIGH",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 10,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
      }
    ]
  },
  "affected": [
    {
      "source": "cret@cert.org",
      "affectedData": [
        {
          "vendor": "n/a",
          "product": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ]
    }
  ],
  "published": "2011-05-31T20:55:01.780",
  "references": [
    {
      "url": "http://secunia.com/advisories/44709",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "cret@cert.org"
    },
    {
      "url": "http://www.kb.cert.org/vuls/id/178990",
      "tags": [
        "Patch",
        "Third Party Advisory",
        "US Government Resource"
      ],
      "source": "cret@cert.org"
    },
    {
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      "tags": [
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        "VDB Entry"
      ],
      "source": "cret@cert.org"
    },
    {
      "url": "https://github.com/erlang/otp/commit/f228601de45c5b53241b103af6616453c50885a5",
      "tags": [
        "Patch"
      ],
      "source": "cret@cert.org"
    },
    {
      "url": "http://secunia.com/advisories/44709",
      "tags": [
        "Vendor Advisory"
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      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.kb.cert.org/vuls/id/178990",
      "tags": [
        "Patch",
        "Third Party Advisory",
        "US Government Resource"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.securityfocus.com/bid/47980",
      "tags": [
        "Third Party Advisory",
        "VDB Entry"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://github.com/erlang/otp/commit/f228601de45c5b53241b103af6616453c50885a5",
      "tags": [
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      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-310"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "The random number generator in the Crypto application before 2.0.2.2, and SSH before 2.0.5, as used in the Erlang/OTP ssh library before R14B03, uses predictable seeds based on the current time, which makes it easier for remote attackers to guess DSA host and SSH session keys."
    },
    {
      "lang": "es",
      "value": "El generador de números aleatorios de la aplicación Crypto en versiones anteriores a la 2.0.2.2, y SSH anteriores a 2.0.5, como es usado en la librería Erlang/OTP ssh en versiones anteriores a la R14B03, utiliza semillas predecibles basadas en la fecha actual, lo que facilita a atacantes remotos adivinar el host DSA y las claves de sesión SSH."
    }
  ],
  "lastModified": "2026-06-16T23:28:01.893",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
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              "versionEndIncluding": "2.0.2.1"
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              "vulnerable": true,
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  "sourceIdentifier": "cret@cert.org"
}