{"containers": {"cna": {"affected": [{"product": "H2O", "vendor": "Kazuho Oku", "versions": [{"status": "affected", "version": "versions 2.0.3 and earlier"}, {"status": "affected", "version": "versions 2.1.0-beta2 and earlier"}]}], "datePublic": "2016-09-15T00:00:00.000Z", "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."}], "problemTypes": [{"descriptions": [{"description": "Format String Vulnerability", "lang": "en", "type": "text"}]}], "providerMetadata": {"dateUpdated": "2017-05-12T17:57:01.000Z", "orgId": "ede6fdc4-6654-4307-a26d-3331c018e2ce", "shortName": "jpcert"}, "references": [{"tags": ["x_refsource_CONFIRM"], "url": "https://github.com/h2o/h2o/issues/1077"}, {"name": "JVN#94779084", "tags": ["third-party-advisory", "x_refsource_JVN"], "url": "https://jvn.jp/en/jp/JVN94779084/index.html"}], "x_legacyV4Record": {"CVE_data_meta": {"ASSIGNER": "vultures@jpcert.or.jp", "ID": "CVE-2016-4864", "STATE": "PUBLIC"}, "affects": {"vendor": {"vendor_data": [{"product": {"product_data": [{"product_name": "H2O", "version": {"version_data": [{"version_value": "versions 2.0.3 and earlier"}, {"version_value": "versions 2.1.0-beta2 and earlier"}]}}]}, "vendor_name": "Kazuho Oku"}]}}, "data_format": "MITRE", "data_type": "CVE", "data_version": "4.0", "description": {"description_data": [{"lang": "eng", "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."}]}, "problemtype": {"problemtype_data": [{"description": [{"lang": "eng", "value": "Format String Vulnerability"}]}]}, "references": {"reference_data": [{"name": "https://github.com/h2o/h2o/issues/1077", "refsource": "CONFIRM", "url": "https://github.com/h2o/h2o/issues/1077"}, {"name": "JVN#94779084", "refsource": "JVN", "url": "https://jvn.jp/en/jp/JVN94779084/index.html"}]}}}, "adp": [{"providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-06T00:46:38.474Z"}, "title": "CVE Program Container", "references": [{"tags": ["x_refsource_CONFIRM", "x_transferred"], "url": "https://github.com/h2o/h2o/issues/1077"}, {"name": "JVN#94779084", "tags": ["third-party-advisory", "x_refsource_JVN", "x_transferred"], "url": "https://jvn.jp/en/jp/JVN94779084/index.html"}]}]}, "cveMetadata": {"assignerOrgId": "ede6fdc4-6654-4307-a26d-3331c018e2ce", "assignerShortName": "jpcert", "cveId": "CVE-2016-4864", "datePublished": "2017-05-12T18:00:00.000Z", "dateReserved": "2016-05-17T00:00:00.000Z", "dateUpdated": "2024-08-06T00:46:38.474Z", "state": "PUBLISHED"}, "dataType": "CVE_RECORD", "dataVersion": "5.1"}

{}

{"configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:dena:h2o:*:*:*:*:*:*:*:*", "matchCriteriaId": "9DA5398C-CA21-49CE-937F-8433D8F50C5F", "versionEndIncluding": "2.0.3", "versionStartIncluding": "2.0.0", "vulnerable": true}, {"criteria": "cpe:2.3:a:dena:h2o:2.1.0:*:*:*:*:*:*:*", "matchCriteriaId": "E2F367EE-6A00-4040-8678-ECA84E6A7FF8", "vulnerable": true}, {"criteria": "cpe:2.3:a:dena:h2o:2.1.0:beta1:*:*:*:*:*:*", "matchCriteriaId": "339AA268-9EFD-4507-88E2-278EDA75C926", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "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."}], "id": "CVE-2016-4864", "lastModified": "2026-05-13T00:24:29.033", "metrics": {"cvssMetricV2": [{"acInsufInfo": true, "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}], "cvssMetricV30": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 7.5, "baseSeverity": "HIGH", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "version": "3.0"}, "exploitabilityScore": 3.9, "impactScore": 3.6, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2017-05-12T18:29:00.437", "references": [{"source": "vultures@jpcert.or.jp", "tags": ["Patch", "Third Party Advisory"], "url": "https://github.com/h2o/h2o/issues/1077"}, {"source": "vultures@jpcert.or.jp", "tags": ["Third Party Advisory", "VDB Entry"], "url": "https://jvn.jp/en/jp/JVN94779084/index.html"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch", "Third Party Advisory"], "url": "https://github.com/h2o/h2o/issues/1077"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Third Party Advisory", "VDB Entry"], "url": "https://jvn.jp/en/jp/JVN94779084/index.html"}], "sourceIdentifier": "vultures@jpcert.or.jp", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-134"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{}

{}