FKIE_CVE-2025-2814

Vulnerability from fkie_nvd - Published: 2025-04-13 00:15 - Updated: 2025-09-05 14:15
Severity ?
4.0 (Medium) - CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
Summary
Crypt::CBC versions between 1.21 and 3.05 for Perl may use the rand() function as the default source of entropy, which is not cryptographically secure, for cryptographic functions. This issue affects operating systems where "/dev/urandom'" is unavailable.  In that case, Crypt::CBC will fallback to use the insecure rand() function.
References
9b29abf9-4ab0-4765-b253-1875cd9b441ehttps://github.com/lstein/Lib-Crypt-CBC/commit/37111f7cd894bcec46156ba7f40a49c126ebf535.patch
9b29abf9-4ab0-4765-b253-1875cd9b441ehttps://metacpan.org/dist/Crypt-CBC/source/lib/Crypt/CBC.pm#L777
9b29abf9-4ab0-4765-b253-1875cd9b441ehttps://perldoc.perl.org/functions/rand
9b29abf9-4ab0-4765-b253-1875cd9b441ehttps://security.metacpan.org/docs/guides/random-data-for-security.html
Impacted products
Vendor Product Version
To clipboard 

{
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Crypt::CBC versions between 1.21 and 3.05 for Perl may use the rand() function as the default source of entropy, which is not cryptographically secure, for cryptographic functions.\n\nThis issue affects operating systems where \"/dev/urandom\u0027\" is unavailable.\u00a0 In that case, Crypt::CBC will fallback to use the insecure rand() function."
    },
    {
      "lang": "es",
      "value": "Las versiones de Crypt::CBC entre la 1.21 y la 3.04 para Perl pueden usar la funci\u00f3n rand() como fuente predeterminada de entrop\u00eda, la cual no es criptogr\u00e1ficamente segura, para funciones criptogr\u00e1ficas. Este problema afecta a sistemas operativos donde \"/dev/urandom\u0027\" no est\u00e1 disponible. En ese caso, Crypt::CBC recurrir\u00e1 a la funci\u00f3n rand(), que no es segura."
    }
  ],
  "id": "CVE-2025-2814",
  "lastModified": "2025-09-05T14:15:44.323",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "LOCAL",
          "availabilityImpact": "LOW",
          "baseScore": 4.0,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L",
          "version": "3.1"
        },
        "exploitabilityScore": 2.5,
        "impactScore": 1.4,
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "type": "Secondary"
      }
    ]
  },
  "published": "2025-04-13T00:15:14.997",
  "references": [
    {
      "source": "9b29abf9-4ab0-4765-b253-1875cd9b441e",
      "url": "https://github.com/lstein/Lib-Crypt-CBC/commit/37111f7cd894bcec46156ba7f40a49c126ebf535.patch"
    },
    {
      "source": "9b29abf9-4ab0-4765-b253-1875cd9b441e",
      "url": "https://metacpan.org/dist/Crypt-CBC/source/lib/Crypt/CBC.pm#L777"
    },
    {
      "source": "9b29abf9-4ab0-4765-b253-1875cd9b441e",
      "url": "https://perldoc.perl.org/functions/rand"
    },
    {
      "source": "9b29abf9-4ab0-4765-b253-1875cd9b441e",
      "url": "https://security.metacpan.org/docs/guides/random-data-for-security.html"
    }
  ],
  "sourceIdentifier": "9b29abf9-4ab0-4765-b253-1875cd9b441e",
  "vulnStatus": "Awaiting Analysis",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-329"
        },
        {
          "lang": "en",
          "value": "CWE-331"
        },
        {
          "lang": "en",
          "value": "CWE-338"
        }
      ],
      "source": "9b29abf9-4ab0-4765-b253-1875cd9b441e",
      "type": "Secondary"
    },
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-338"
        }
      ],
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
      "type": "Secondary"
    }
  ]
}


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  • Confirmed: The vulnerability has been validated from an analyst's perspective.
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