{
  "id": "CVE-2011-4838",
  "sourceIdentifier": "cve@mitre.org",
  "published": "2011-12-30T01:55:01.500",
  "lastModified": "2021-01-12T14:30:28.590",
  "vulnStatus": "Analyzed",
  "descriptions": [
    {
      "lang": "en",
      "value": "JRuby before 1.6.5.1 computes hash values without restricting the ability to trigger hash collisions predictably, which allows context-dependent attackers to cause a denial of service (CPU consumption) via crafted input to an application that maintains a hash table."
    },
    {
      "lang": "es",
      "value": "JRuby anterior a v1.6.5.1 calcula los valores de hash sin restringir la capacidad de desencadenar colisiones hash predecible, que permite a atacantes dependientes de contexto causar una denegaci\u00f3n de servicio (consumo de CPU) a trav\u00e9s de entrada dise\u00f1ado para una aplicaci\u00f3n que mantiene una tabla hash."
    }
  ],
  "metrics": {
    "cvssMetricV2": [
      {
        "source": "nvd@nist.gov",
        "type": "Primary",
        "cvssData": {
          "version": "2.0",
          "vectorString": "AV:N/AC:L/Au:N/C:N/I:N/A:P",
          "accessVector": "NETWORK",
          "accessComplexity": "LOW",
          "authentication": "NONE",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "availabilityImpact": "PARTIAL",
          "baseScore": 5.0
        },
        "baseSeverity": "MEDIUM",
        "exploitabilityScore": 10.0,
        "impactScore": 2.9,
        "acInsufInfo": false,
        "obtainAllPrivilege": false,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
      }
    ]
  },
  "weaknesses": [
    {
      "source": "nvd@nist.gov",
      "type": "Primary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-400"
        }
      ]
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "operator": "OR",
          "negate": false,
          "cpeMatch": [
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:a:jruby:jruby:*:*:*:*:*:*:*:*",
              "versionEndExcluding": "1.6.5.1",
              "matchCriteriaId": "F3DE8162-6FF2-4CDC-B66A-3D06AE5D7CB5"
            }
          ]
        }
      ]
    }
  ],
  "references": [
    {
      "url": "http://archives.neohapsis.com/archives/bugtraq/2011-12/0181.html",
      "source": "cve@mitre.org",
      "tags": [
        "Broken Link"
      ]
    },
    {
      "url": "http://jruby.org/2011/12/27/jruby-1-6-5-1.html",
      "source": "cve@mitre.org",
      "tags": [
        "Vendor Advisory"
      ]
    },
    {
      "url": "http://rhn.redhat.com/errata/RHSA-2012-1232.html",
      "source": "cve@mitre.org",
      "tags": [
        "Broken Link"
      ]
    },
    {
      "url": "http://security.gentoo.org/glsa/glsa-201207-06.xml",
      "source": "cve@mitre.org",
      "tags": [
        "Third Party Advisory"
      ]
    },
    {
      "url": "http://www.kb.cert.org/vuls/id/903934",
      "source": "cve@mitre.org",
      "tags": [
        "Third Party Advisory",
        "US Government Resource"
      ]
    },
    {
      "url": "http://www.nruns.com/_downloads/advisory28122011.pdf",
      "source": "cve@mitre.org",
      "tags": [
        "Third Party Advisory"
      ]
    },
    {
      "url": "http://www.ocert.org/advisories/ocert-2011-003.html",
      "source": "cve@mitre.org",
      "tags": [
        "Third Party Advisory"
      ]
    },
    {
      "url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/72019",
      "source": "cve@mitre.org",
      "tags": [
        "Third Party Advisory",
        "VDB Entry"
      ]
    }
  ]
}