FKIE_CVE-2011-4815

Vulnerability from fkie_nvd - Published: 2011-12-30 01:55 - Updated: 2026-06-16 23:35
Severity
Summary
Ruby (aka CRuby) before 1.8.7-p357 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.
References
cve@mitre.orghttp://archives.neohapsis.com/archives/bugtraq/2011-12/0181.html
cve@mitre.orghttp://blade.nagaokaut.ac.jp/cgi-bin/scat.rb/ruby/ruby-talk/391606
cve@mitre.orghttp://jvn.jp/en/jp/JVN90615481/index.html
cve@mitre.orghttp://jvndb.jvn.jp/ja/contents/2012/JVNDB-2012-000066.html
cve@mitre.orghttp://lists.apple.com/archives/security-announce/2012/May/msg00001.html
cve@mitre.orghttp://rhn.redhat.com/errata/RHSA-2012-0069.html
cve@mitre.orghttp://rhn.redhat.com/errata/RHSA-2012-0070.html
cve@mitre.orghttp://secunia.com/advisories/47405
cve@mitre.orghttp://secunia.com/advisories/47822
cve@mitre.orghttp://support.apple.com/kb/HT5281
cve@mitre.orghttp://www.kb.cert.org/vuls/id/903934US Government Resource
cve@mitre.orghttp://www.nruns.com/_downloads/advisory28122011.pdf
cve@mitre.orghttp://www.ocert.org/advisories/ocert-2011-003.html
cve@mitre.orghttp://www.ruby-lang.org/en/news/2011/12/28/denial-of-service-attack-was-found-for-rubys-hash-algorithm/
cve@mitre.orghttp://www.securitytracker.com/id?1026474
cve@mitre.orghttps://exchange.xforce.ibmcloud.com/vulnerabilities/72020
af854a3a-2127-422b-91ae-364da2661108http://archives.neohapsis.com/archives/bugtraq/2011-12/0181.html
af854a3a-2127-422b-91ae-364da2661108http://blade.nagaokaut.ac.jp/cgi-bin/scat.rb/ruby/ruby-talk/391606
af854a3a-2127-422b-91ae-364da2661108http://jvn.jp/en/jp/JVN90615481/index.html
af854a3a-2127-422b-91ae-364da2661108http://jvndb.jvn.jp/ja/contents/2012/JVNDB-2012-000066.html
af854a3a-2127-422b-91ae-364da2661108http://lists.apple.com/archives/security-announce/2012/May/msg00001.html
af854a3a-2127-422b-91ae-364da2661108http://rhn.redhat.com/errata/RHSA-2012-0069.html
af854a3a-2127-422b-91ae-364da2661108http://rhn.redhat.com/errata/RHSA-2012-0070.html
af854a3a-2127-422b-91ae-364da2661108http://secunia.com/advisories/47405
af854a3a-2127-422b-91ae-364da2661108http://secunia.com/advisories/47822
af854a3a-2127-422b-91ae-364da2661108http://support.apple.com/kb/HT5281
af854a3a-2127-422b-91ae-364da2661108http://www.kb.cert.org/vuls/id/903934US Government Resource
af854a3a-2127-422b-91ae-364da2661108http://www.nruns.com/_downloads/advisory28122011.pdf
af854a3a-2127-422b-91ae-364da2661108http://www.ocert.org/advisories/ocert-2011-003.html
af854a3a-2127-422b-91ae-364da2661108http://www.ruby-lang.org/en/news/2011/12/28/denial-of-service-attack-was-found-for-rubys-hash-algorithm/
af854a3a-2127-422b-91ae-364da2661108http://www.securitytracker.com/id?1026474
af854a3a-2127-422b-91ae-364da2661108https://exchange.xforce.ibmcloud.com/vulnerabilities/72020
Impacted products
Vendor Product Version
ruby-lang ruby *
ruby-lang ruby 1.8.7-p299
ruby-lang ruby 1.8.7-p302
ruby-lang ruby 1.8.7-p330
ruby-lang ruby 1.8.7-p334
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "n/a",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ],
      "source": "cve@mitre.org"
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:ruby-lang:ruby:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "CF503FC0-3CC4-48BC-89EF-F7DEBF4E2F85",
              "versionEndIncluding": "1.8.7-p352",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:ruby-lang:ruby:1.8.7-p299:*:*:*:*:*:*:*",
              "matchCriteriaId": "F3F5F64A-855A-41D1-9F89-EE93D0F44D70",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:ruby-lang:ruby:1.8.7-p302:*:*:*:*:*:*:*",
              "matchCriteriaId": "27CC5244-6F8F-4D05-8301-7467A44B962F",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:ruby-lang:ruby:1.8.7-p330:*:*:*:*:*:*:*",
              "matchCriteriaId": "D17613F3-63F8-4809-84D1-7CAC943C7B1E",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:ruby-lang:ruby:1.8.7-p334:*:*:*:*:*:*:*",
              "matchCriteriaId": "264C1C64-B631-4C63-9A0A-10C5E3F5D1BB",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Ruby (aka CRuby) before 1.8.7-p357 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": "Ruby (tambi\u00e9n conocido como CRuby) anterior a v1.8.7-P357 calcula los valores de hash sin restringir la capacidad de desencadenar colisiones hash predecible, que permite a atacantes dependientes de contexto para causar una denegaci\u00f3n de servicio (consumo de CPU) a trav\u00e9s de entrada dise\u00f1ado para una aplicaci\u00f3n que mantiene un hash mesa."
    }
  ],
  "id": "CVE-2011-4815",
  "lastModified": "2026-06-16T23:35:27.247",
  "metrics": {
    "cvssMetricV2": [
      {
        "acInsufInfo": false,
        "baseSeverity": "HIGH",
        "cvssData": {
          "accessComplexity": "LOW",
          "accessVector": "NETWORK",
          "authentication": "NONE",
          "availabilityImpact": "COMPLETE",
          "baseScore": 7.8,
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "vectorString": "AV:N/AC:L/Au:N/C:N/I:N/A:C",
          "version": "2.0"
        },
        "exploitabilityScore": 10.0,
        "impactScore": 6.9,
        "obtainAllPrivilege": false,
        "obtainOtherPrivilege": false,
        "obtainUserPrivilege": false,
        "source": "nvd@nist.gov",
        "type": "Primary",
        "userInteractionRequired": false
      }
    ]
  },
  "published": "2011-12-30T01:55:01.437",
  "references": [
    {
      "source": "cve@mitre.org",
      "url": "http://archives.neohapsis.com/archives/bugtraq/2011-12/0181.html"
    },
    {
      "source": "cve@mitre.org",
      "url": "http://blade.nagaokaut.ac.jp/cgi-bin/scat.rb/ruby/ruby-talk/391606"
    },
    {
      "source": "cve@mitre.org",
      "url": "http://jvn.jp/en/jp/JVN90615481/index.html"
    },
    {
      "source": "cve@mitre.org",
      "url": "http://jvndb.jvn.jp/ja/contents/2012/JVNDB-2012-000066.html"
    },
    {
      "source": "cve@mitre.org",
      "url": "http://lists.apple.com/archives/security-announce/2012/May/msg00001.html"
    },
    {
      "source": "cve@mitre.org",
      "url": "http://rhn.redhat.com/errata/RHSA-2012-0069.html"
    },
    {
      "source": "cve@mitre.org",
      "url": "http://rhn.redhat.com/errata/RHSA-2012-0070.html"
    },
    {
      "source": "cve@mitre.org",
      "url": "http://secunia.com/advisories/47405"
    },
    {
      "source": "cve@mitre.org",
      "url": "http://secunia.com/advisories/47822"
    },
    {
      "source": "cve@mitre.org",
      "url": "http://support.apple.com/kb/HT5281"
    },
    {
      "source": "cve@mitre.org",
      "tags": [
        "US Government Resource"
      ],
      "url": "http://www.kb.cert.org/vuls/id/903934"
    },
    {
      "source": "cve@mitre.org",
      "url": "http://www.nruns.com/_downloads/advisory28122011.pdf"
    },
    {
      "source": "cve@mitre.org",
      "url": "http://www.ocert.org/advisories/ocert-2011-003.html"
    },
    {
      "source": "cve@mitre.org",
      "url": "http://www.ruby-lang.org/en/news/2011/12/28/denial-of-service-attack-was-found-for-rubys-hash-algorithm/"
    },
    {
      "source": "cve@mitre.org",
      "url": "http://www.securitytracker.com/id?1026474"
    },
    {
      "source": "cve@mitre.org",
      "url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/72020"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "http://archives.neohapsis.com/archives/bugtraq/2011-12/0181.html"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "http://blade.nagaokaut.ac.jp/cgi-bin/scat.rb/ruby/ruby-talk/391606"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "http://jvn.jp/en/jp/JVN90615481/index.html"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "http://jvndb.jvn.jp/ja/contents/2012/JVNDB-2012-000066.html"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "http://lists.apple.com/archives/security-announce/2012/May/msg00001.html"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "http://rhn.redhat.com/errata/RHSA-2012-0069.html"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "http://rhn.redhat.com/errata/RHSA-2012-0070.html"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "http://secunia.com/advisories/47405"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "http://secunia.com/advisories/47822"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "http://support.apple.com/kb/HT5281"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "US Government Resource"
      ],
      "url": "http://www.kb.cert.org/vuls/id/903934"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "http://www.nruns.com/_downloads/advisory28122011.pdf"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "http://www.ocert.org/advisories/ocert-2011-003.html"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "http://www.ruby-lang.org/en/news/2011/12/28/denial-of-service-attack-was-found-for-rubys-hash-algorithm/"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "http://www.securitytracker.com/id?1026474"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/72020"
    }
  ],
  "sourceIdentifier": "cve@mitre.org",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-20"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}



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Sightings

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Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
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