{
  "id": "CVE-2016-4864",
  "sourceIdentifier": "vultures@jpcert.or.jp",
  "published": "2017-05-12T18:29:00.437",
  "lastModified": "2019-02-26T16:03:35.057",
  "vulnStatus": "Analyzed",
  "descriptions": [
    {
      "lang": "en",
      "value": "H2O versions 2.0.3 and earlier and 2.1.0-beta2 and earlier allows remote attackers to cause a denial-of-service (DoS) via format string specifiers in a template file via fastcgi, mruby, proxy, redirect or reproxy."
    },
    {
      "lang": "es",
      "value": "H2O versiones 2.0.3 y anteriores y 2.1.0-beta2 y anteriores, permite a atacantes remotos causar una denegaci\u00f3n de servicio (DoS) a trav\u00e9s de especificadores de cadena de formato en un fichero de plantilla a trav\u00e9s de fastcgi, mruby, proxy, redirect o reproxy."
    }
  ],
  "metrics": {
    "cvssMetricV30": [
      {
        "source": "nvd@nist.gov",
        "type": "Primary",
        "cvssData": {
          "version": "3.0",
          "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
          "attackVector": "NETWORK",
          "attackComplexity": "LOW",
          "privilegesRequired": "NONE",
          "userInteraction": "NONE",
          "scope": "UNCHANGED",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "availabilityImpact": "HIGH",
          "baseScore": 7.5,
          "baseSeverity": "HIGH"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 3.6
      }
    ],
    "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": true,
        "obtainAllPrivilege": false,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
      }
    ]
  },
  "weaknesses": [
    {
      "source": "nvd@nist.gov",
      "type": "Primary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-134"
        }
      ]
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "operator": "OR",
          "negate": false,
          "cpeMatch": [
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:a:dena:h2o:*:*:*:*:*:*:*:*",
              "versionStartIncluding": "2.0.0",
              "versionEndIncluding": "2.0.3",
              "matchCriteriaId": "9DA5398C-CA21-49CE-937F-8433D8F50C5F"
            },
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:a:dena:h2o:2.1.0:*:*:*:*:*:*:*",
              "matchCriteriaId": "E2F367EE-6A00-4040-8678-ECA84E6A7FF8"
            },
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              "criteria": "cpe:2.3:a:dena:h2o:2.1.0:beta1:*:*:*:*:*:*",
              "matchCriteriaId": "339AA268-9EFD-4507-88E2-278EDA75C926"
            }
          ]
        }
      ]
    }
  ],
  "references": [
    {
      "url": "https://github.com/h2o/h2o/issues/1077",
      "source": "vultures@jpcert.or.jp",
      "tags": [
        "Patch",
        "Third Party Advisory"
      ]
    },
    {
      "url": "https://jvn.jp/en/jp/JVN94779084/index.html",
      "source": "vultures@jpcert.or.jp",
      "tags": [
        "Third Party Advisory",
        "VDB Entry"
      ]
    }
  ]
}