CVE-2011-4838

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{"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:jruby:jruby:*:*:*:*:*:*:*:*", "matchCriteriaId": "F3DE8162-6FF2-4CDC-B66A-3D06AE5D7CB5", "versionEndExcluding": "1.6.5.1", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "JRuby before 1.6.5.1 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": "JRuby anterior a v1.6.5.1 calcula los valores de hash sin restringir la capacidad de desencadenar colisiones hash predecible, que permite a atacantes dependientes de contexto causar una denegaci\u00f3n de servicio (consumo de CPU) a trav\u00e9s de entrada dise\u00f1ado para una aplicaci\u00f3n que mantiene una tabla hash."}], "id": "CVE-2011-4838", "lastModified": "2026-06-16T23:35:29.917", "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": "2011-12-30T01:55:01.500", "references": [{"source": "cve@mitre.org", "tags": ["Broken Link"], "url": "http://archives.neohapsis.com/archives/bugtraq/2011-12/0181.html"}, {"source": "cve@mitre.org", "tags": ["Vendor Advisory"], "url": "http://jruby.org/2011/12/27/jruby-1-6-5-1.html"}, {"source": "cve@mitre.org", "tags": ["Broken Link"], "url": "http://rhn.redhat.com/errata/RHSA-2012-1232.html"}, {"source": "cve@mitre.org", "tags": ["Third Party Advisory"], "url": "http://secunia.com/advisories/47407"}, {"source": "cve@mitre.org", "tags": ["Third Party Advisory"], "url": "http://secunia.com/advisories/50084"}, {"source": "cve@mitre.org", "tags": ["Third Party Advisory"], "url": "http://security.gentoo.org/glsa/glsa-201207-06.xml"}, {"source": "cve@mitre.org", "tags": ["Third Party Advisory", "US Government Resource"], "url": "http://www.kb.cert.org/vuls/id/903934"}, {"source": "cve@mitre.org", "tags": ["Third Party Advisory"], "url": "http://www.nruns.com/_downloads/advisory28122011.pdf"}, {"source": "cve@mitre.org", "tags": ["Third Party Advisory"], "url": "http://www.ocert.org/advisories/ocert-2011-003.html"}, {"source": "cve@mitre.org", "tags": ["Third Party Advisory", "VDB Entry"], "url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/72019"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Broken Link"], "url": "http://archives.neohapsis.com/archives/bugtraq/2011-12/0181.html"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Vendor Advisory"], "url": "http://jruby.org/2011/12/27/jruby-1-6-5-1.html"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Broken Link"], "url": "http://rhn.redhat.com/errata/RHSA-2012-1232.html"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Third Party Advisory"], "url": "http://secunia.com/advisories/47407"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Third Party Advisory"], "url": "http://secunia.com/advisories/50084"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Third Party Advisory"], "url": "http://security.gentoo.org/glsa/glsa-201207-06.xml"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Third Party Advisory", "US Government Resource"], "url": "http://www.kb.cert.org/vuls/id/903934"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Third Party Advisory"], "url": "http://www.nruns.com/_downloads/advisory28122011.pdf"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Third Party Advisory"], "url": "http://www.ocert.org/advisories/ocert-2011-003.html"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Third Party Advisory", "VDB Entry"], "url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/72019"}], "sourceIdentifier": "cve@mitre.org", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-400"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"acknowledgement": "Red Hat would like to thank oCERT for reporting this issue.", "affected_release": [{"advisory": "RHSA-2012:1125", "cpe": "cpe:/a:redhat:jboss_soa_platform:5.3", "product_name": "Red Hat JBoss SOA Platform 5.3", "release_date": "2012-07-31T00:00:00Z"}], "bugzilla": {"description": "jruby: hash table collisions DoS (oCERT-2011-003)", "id": "770820", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=770820"}, "csaw": false, "cvss": {"cvss_base_score": "5.0", "cvss_scoring_vector": "AV:N/AC:L/Au:N/C:N/I:N/A:P", "status": "verified"}, "details": ["JRuby before 1.6.5.1 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."], "name": "CVE-2011-4838", "package_state": [{"cpe": "cpe:/a:redhat:jboss_enterprise_soa_platform:5", "fix_state": "Affected", "package_name": "jruby", "product_name": "Red Hat JBoss SOA Platform 5"}], "public_date": "2011-12-28T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2011-4838\nhttps://nvd.nist.gov/vuln/detail/CVE-2011-4838"], "threat_severity": "Moderate"}

{}