CVE-2016-2339

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{"affected": [{"affectedData": [{"product": "Ruby", "vendor": "Ruby", "versions": [{"status": "affected", "version": "2.3.0 dev"}, {"status": "affected", "version": "2.2.2"}]}], "source": "cret@cert.org"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:ruby-lang:ruby:2.2.2:*:*:*:*:*:*:*", "matchCriteriaId": "5FCCD8F3-E667-42F2-9861-14EDFB16583A", "vulnerable": true}, {"criteria": "cpe:2.3:a:ruby-lang:ruby:2.3.0:*:*:*:*:*:*:*", "matchCriteriaId": "822307DD-7F7D-44C2-9C4B-CB8704663410", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "An exploitable heap overflow vulnerability exists in the Fiddle::Function.new \"initialize\" function functionality of Ruby. In Fiddle::Function.new \"initialize\" heap buffer \"arg_types\" allocation is made based on args array length. Specially constructed object passed as element of args array can increase this array size after mentioned allocation and cause heap overflow."}, {"lang": "es", "value": "Existe una vulnerabilidad explotable de desbordamiento de memoria din\u00e1mica en la funcionalidad Fiddle::Function.new \"initialize\" de Ruby. En Fiddle::Function.new \"initialize\" la ubicaci\u00f3n \"arg_types\" de la memoria din\u00e1mica del b\u00fafer se hace en base a la longitud de los args array. Un objeto especialmente construido pasado como un elemento de los args array puede incrementar el tama\u00f1o de este array despu\u00e9s de haber mencionado la ubicaci\u00f3n y provocar desbordamiento de memoria din\u00e1mica."}], "id": "CVE-2016-2339", "lastModified": "2026-06-17T00:43:51.130", "metrics": {"cvssMetricV2": [{"acInsufInfo": true, "baseSeverity": "HIGH", "cvssData": {"accessComplexity": "LOW", "accessVector": "NETWORK", "authentication": "NONE", "availabilityImpact": "PARTIAL", "baseScore": 7.5, "confidentialityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:P", "version": "2.0"}, "exploitabilityScore": 10.0, "impactScore": 6.4, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": false}], "cvssMetricV30": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 9.8, "baseSeverity": "CRITICAL", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "version": "3.0"}, "exploitabilityScore": 3.9, "impactScore": 5.9, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2017-01-06T21:59:00.493", "references": [{"source": "cret@cert.org", "url": "http://www.securityfocus.com/bid/91234"}, {"source": "cret@cert.org", "tags": ["Exploit", "Technical Description", "Third Party Advisory", "VDB Entry"], "url": "http://www.talosintelligence.com/reports/TALOS-2016-0034/"}, {"source": "cret@cert.org", "url": "https://lists.debian.org/debian-lts-announce/2018/07/msg00012.html"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "http://www.securityfocus.com/bid/91234"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Exploit", "Technical Description", "Third Party Advisory", "VDB Entry"], "url": "http://www.talosintelligence.com/reports/TALOS-2016-0034/"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://lists.debian.org/debian-lts-announce/2018/07/msg00012.html"}], "sourceIdentifier": "cret@cert.org", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-119"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"bugzilla": {"description": "ruby: Fiddle:: Function.new heap buffer overflow", "id": "1412678", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1412678"}, "csaw": false, "cvss3": {"cvss3_base_score": "7.0", "cvss3_scoring_vector": "CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H", "status": "draft"}, "cwe": "CWE-122", "details": ["An exploitable heap overflow vulnerability exists in the Fiddle::Function.new \"initialize\" function functionality of Ruby. In Fiddle::Function.new \"initialize\" heap buffer \"arg_types\" allocation is made based on args array length. Specially constructed object passed as element of args array can increase this array size after mentioned allocation and cause heap overflow."], "name": "CVE-2016-2339", "package_state": [{"cpe": "cpe:/a:redhat:cloudforms_managementengine:5", "fix_state": "Will not fix", "package_name": "rh-ruby22-ruby", "product_name": "CloudForms Management Engine 5"}, {"cpe": "cpe:/a:redhat:cloudforms_managementengine:5", "fix_state": "Will not fix", "package_name": "ruby-200-ruby", "product_name": "CloudForms Management Engine 5"}, {"cpe": "cpe:/o:redhat:enterprise_linux:5", "fix_state": "Not affected", "package_name": "ruby", "product_name": "Red Hat Enterprise Linux 5"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Not affected", "package_name": "ruby", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Will not fix", "package_name": "ruby", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/a:redhat:rhel_software_collections:2", "fix_state": "Will not fix", "package_name": "rh-ruby22-ruby", "product_name": "Red Hat Software Collections"}, {"cpe": "cpe:/a:redhat:rhel_software_collections:2", "fix_state": "Will not fix", "package_name": "rh-ruby23-ruby", "product_name": "Red Hat Software Collections"}, {"cpe": "cpe:/a:redhat:rhel_software_collections:2", "fix_state": "Will not fix", "package_name": "ruby200-ruby", "product_name": "Red Hat Software Collections"}], "public_date": "2016-06-14T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2016-2339\nhttps://nvd.nist.gov/vuln/detail/CVE-2016-2339"], "statement": "Red Hat Product Security has rated this issue as having Moderate security\nimpact. This issue is not currently planned to be addressed in future\nupdates. For additional information, refer to the Issue Severity\nClassification: https://access.redhat.com/security/updates/classification/.", "threat_severity": "Moderate"}

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