FKIE_CVE-2012-6051

Vulnerability from fkie_nvd - Published: 2012-11-28 13:03 - Updated: 2026-06-16 23:47
Severity
Summary
Google CityHash computes hash values without properly 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, as demonstrated by a universal multicollision attack.
References
cve@mitre.orghttp://2012.appsec-forum.ch/conferences/#c17
cve@mitre.orghttp://asfws12.files.wordpress.com/2012/11/asfws2012-jean_philippe_aumasson-martin_bosslet-hash_flooding_dos_reloaded.pdf
cve@mitre.orghttp://code.google.com/p/cityhash/source/browse/trunk/NEWS
cve@mitre.orghttps://www.131002.net/data/talks/appsec12_slides.pdf
af854a3a-2127-422b-91ae-364da2661108http://2012.appsec-forum.ch/conferences/#c17
af854a3a-2127-422b-91ae-364da2661108http://asfws12.files.wordpress.com/2012/11/asfws2012-jean_philippe_aumasson-martin_bosslet-hash_flooding_dos_reloaded.pdf
af854a3a-2127-422b-91ae-364da2661108http://code.google.com/p/cityhash/source/browse/trunk/NEWS
af854a3a-2127-422b-91ae-364da2661108https://www.131002.net/data/talks/appsec12_slides.pdf
Impacted products
Vendor Product Version
google cityhash -
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:google:cityhash:-:*:*:*:*:*:*:*",
              "matchCriteriaId": "E0CA7867-026D-4CB8-9241-4DE523E642D6",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Google CityHash computes hash values without properly 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, as demonstrated by a universal multicollision attack."
    },
    {
      "lang": "es",
      "value": "Google CityHash procesa valores hash sin restringir la posibilidad de producir colisiones previsibles, lo que permitir\u00eda a atacantes dependiendo del contexto provocar una denegaci\u00f3n de servicio (consumo de CPU) a trav\u00e9s de la manipulaci\u00f3n de una entrada a la aplicaci\u00f3n que mantiene la tabla de valores hash, como se demostr\u00f3 por el ataque universal multicolisi\u00f3n.\r\n"
    }
  ],
  "id": "CVE-2012-6051",
  "lastModified": "2026-06-16T23:47:43.713",
  "metrics": {
    "cvssMetricV2": [
      {
        "acInsufInfo": false,
        "baseSeverity": "MEDIUM",
        "cvssData": {
          "accessComplexity": "LOW",
          "accessVector": "NETWORK",
          "authentication": "NONE",
          "availabilityImpact": "PARTIAL",
          "baseScore": 5.0,
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "vectorString": "AV:N/AC:L/Au:N/C:N/I:N/A:P",
          "version": "2.0"
        },
        "exploitabilityScore": 10.0,
        "impactScore": 2.9,
        "obtainAllPrivilege": false,
        "obtainOtherPrivilege": false,
        "obtainUserPrivilege": false,
        "source": "nvd@nist.gov",
        "type": "Primary",
        "userInteractionRequired": false
      }
    ]
  },
  "published": "2012-11-28T13:03:10.323",
  "references": [
    {
      "source": "cve@mitre.org",
      "url": "http://2012.appsec-forum.ch/conferences/#c17"
    },
    {
      "source": "cve@mitre.org",
      "url": "http://asfws12.files.wordpress.com/2012/11/asfws2012-jean_philippe_aumasson-martin_bosslet-hash_flooding_dos_reloaded.pdf"
    },
    {
      "source": "cve@mitre.org",
      "url": "http://code.google.com/p/cityhash/source/browse/trunk/NEWS"
    },
    {
      "source": "cve@mitre.org",
      "url": "https://www.131002.net/data/talks/appsec12_slides.pdf"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "http://2012.appsec-forum.ch/conferences/#c17"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "http://asfws12.files.wordpress.com/2012/11/asfws2012-jean_philippe_aumasson-martin_bosslet-hash_flooding_dos_reloaded.pdf"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "http://code.google.com/p/cityhash/source/browse/trunk/NEWS"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "https://www.131002.net/data/talks/appsec12_slides.pdf"
    }
  ],
  "sourceIdentifier": "cve@mitre.org",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-310"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}



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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

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.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
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  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.