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CVE-2012-4464

Status: ModifiedMedium (5)—

Ruby 1.9.3 before patchlevel 286 and 2.0 before revision r37068 allows context-dependent attackers to bypass safe-level restrictions and modify untainted strings via the (1) exc_to_s or (2) name_err_to_s API function, which marks the string as tainted, a different vulnerability than CVE-2012-4466. NOTE: this issue might exist because of a CVE-2011-1005 regression.

CVSS

Exploitation probability (EPSS)

EPSS (Exploit Prediction Scoring System, FIRST) estimates how likely a vulnerability is to be exploited in the wild within 30 days. It complements CVSS (impact) and CISA KEV (confirmed exploitation).

Affected technologies (1)

Ruby-lang — Ruby

CWEs

References

Raw JSON (NVD)

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{
  "id": "CVE-2012-4464",
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          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:L/Au:N/C:N/I:P/A:N",
          "authentication": "NONE",
          "integrityImpact": "PARTIAL",
          "accessComplexity": "LOW",
          "availabilityImpact": "NONE",
          "confidentialityImpact": "NONE"
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        "acInsufInfo": false,
        "impactScore": 2.9,
        "baseSeverity": "MEDIUM",
        "obtainAllPrivilege": false,
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  "published": "2013-04-25T23:55:01.310",
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  "vulnStatus": "Modified",
  "weaknesses": [
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      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-264"
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      ]
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  ],
  "descriptions": [
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      "lang": "en",
      "value": "Ruby 1.9.3 before patchlevel 286 and 2.0 before revision r37068 allows context-dependent attackers to bypass safe-level restrictions and modify untainted strings via the (1) exc_to_s or (2) name_err_to_s API function, which marks the string as tainted, a different vulnerability than CVE-2012-4466.  NOTE: this issue might exist because of a CVE-2011-1005 regression."
    },
    {
      "lang": "es",
      "value": "Ruby v1.9.3 antes patchlevel 286 y v2.0 antes de la revisión r37068 permite a atacantes dependientes de contexto para evitar las restricciones de seguridad de nivel y modifican a través de las cadenas untainted (1) exc_to_s o (2) la función API name_err_to_s, que marca la cadena como contaminada, un diferentes vulnerabilidad a CVE-2012-4466. NOTA: este problema puede existir como consecuencia de una CVE-2011-1005 de regresión."
    }
  ],
  "lastModified": "2026-06-16T23:45:09.003",
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