CVE-2011-4858

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crafted parameters."}, {"lang": "es", "value": "Apache Tomcat antes de v5.5.35, v6.x antes de v6.0.35 y v7.x antes de v7.0.23 calcula los valores hash de los par\u00e1metros de los formularios, sin restringir la capacidad de desencadenar colisiones de hash de forma predecible. Esto permite a atacantes remotos provocar una denegaci\u00f3n de servicio (por consumo de CPU) mediante el env\u00edo de gran cantidad de par\u00e1metros especialmente modificados."}], "id": "CVE-2011-4858", "lastModified": "2026-06-16T23:35:31.283", "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": "2012-01-05T19:55:01.033", "references": [{"source": "cve@mitre.org", "url": "http://mail-archives.apache.org/mod_mbox/tomcat-announce/201112.mbox/%3c4EFB9800.5010106%40apache.org%3e"}, {"source": "cve@mitre.org", "url": "http://marc.info/?l=bugtraq&m=132871655717248&w=2"}, {"source": "cve@mitre.org", "url": "http://marc.info/?l=bugtraq&m=133294394108746&w=2"}, {"source": "cve@mitre.org", "url": "http://marc.info/?l=bugtraq&m=136485229118404&w=2"}, {"source": "cve@mitre.org", "url": "http://rhn.redhat.com/errata/RHSA-2012-0074.html"}, {"source": "cve@mitre.org", "url": "http://rhn.redhat.com/errata/RHSA-2012-0075.html"}, {"source": "cve@mitre.org", "url": "http://rhn.redhat.com/errata/RHSA-2012-0076.html"}, {"source": "cve@mitre.org", "url": "http://rhn.redhat.com/errata/RHSA-2012-0077.html"}, {"source": "cve@mitre.org", "url": "http://rhn.redhat.com/errata/RHSA-2012-0078.html"}, {"source": "cve@mitre.org", "url": "http://rhn.redhat.com/errata/RHSA-2012-0089.html"}, {"source": "cve@mitre.org", "url": "http://rhn.redhat.com/errata/RHSA-2012-0325.html"}, {"source": "cve@mitre.org", "url": "http://rhn.redhat.com/errata/RHSA-2012-0406.html"}, {"source": "cve@mitre.org", "url": "http://secunia.com/advisories/48549"}, {"source": "cve@mitre.org", "url": "http://secunia.com/advisories/48790"}, {"source": "cve@mitre.org", "url": "http://secunia.com/advisories/48791"}, {"source": "cve@mitre.org", "url": "http://secunia.com/advisories/54971"}, {"source": "cve@mitre.org", "url": "http://secunia.com/advisories/55115"}, {"source": "cve@mitre.org", "url": "http://tomcat.apache.org/tomcat-7.0-doc/changelog.html"}, {"source": "cve@mitre.org", "url": "http://www.debian.org/security/2012/dsa-2401"}, {"source": "cve@mitre.org", "tags": ["US Government Resource"], "url": "http://www.kb.cert.org/vuls/id/903934"}, {"source": "cve@mitre.org", "url": "http://www.nruns.com/_downloads/advisory28122011.pdf"}, {"source": "cve@mitre.org", "url": "http://www.ocert.org/advisories/ocert-2011-003.html"}, {"source": "cve@mitre.org", "url": 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"af854a3a-2127-422b-91ae-364da2661108", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=750521"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://github.com/FireFart/HashCollision-DOS-POC/blob/master/HashtablePOC.py"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A18886"}], "sourceIdentifier": "cve@mitre.org", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-399"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"acknowledgement": "Red Hat would like to thank oCERT for reporting this issue.", "affected_release": [{"advisory": "RHSA-2012:0076", "cpe": "cpe:/a:redhat:jboss_enterprise_web_platform:5::el5", "package": "jbossweb-0:2.1.12-3_patch_03.2.ep5.el5", "product_name": "JBEWP 5 for RHEL 5", "release_date": "2012-01-31T00:00:00Z"}, {"advisory": "RHSA-2012:0076", "cpe": "cpe:/a:redhat:jboss_enterprise_web_platform:5::el6", "package": "jbossweb-0:2.1.12-3_patch_03.2.ep5.el6", "product_name": "JBEWP 5 for RHEL 6", "release_date": "2012-01-31T00:00:00Z"}, {"advisory": "RHSA-2012:0078", "cpe": "cpe:/a:redhat:jboss_communications_platform:5.1", "product_name": "JBoss Communications Platform 5.1", "release_date": "2012-01-31T00:00:00Z"}, {"advisory": "RHSA-2012:0325", "cpe": "cpe:/a:redhat:jboss_enterprise_brms_platform:5.1", "product_name": "JBoss Enterprise BRMS Platform 5.1", "release_date": "2012-02-22T00:00:00Z"}, {"advisory": "RHSA-2012:0474", "cpe": "cpe:/o:redhat:enterprise_linux:5", "package": "tomcat5-0:5.5.23-0jpp.31.el5_8", "product_name": "Red Hat Enterprise Linux 5", "release_date": "2012-04-11T00:00:00Z"}, {"advisory": "RHSA-2012:0475", "cpe": "cpe:/o:redhat:enterprise_linux:6", "package": "tomcat6-0:6.0.24-36.el6_2", "product_name": "Red Hat Enterprise Linux 6", "release_date": "2012-04-11T00:00:00Z"}, {"advisory": "RHSA-2012:0041", "cpe": "cpe:/a:redhat:jboss_enterprise_application_platform:4.3", "product_name": "Red Hat JBoss Enterprise Application Platform 4.3", "release_date": "2012-01-19T00:00:00Z"}, {"advisory": "RHSA-2012:0075", "cpe": "cpe:/a:redhat:jboss_enterprise_application_platform:5.1", "product_name": "Red Hat JBoss Enterprise Application Platform 5.1", "release_date": "2012-01-31T00:00:00Z"}, {"advisory": "RHSA-2012:0074", "cpe": "cpe:/a:redhat:jboss_enterprise_application_platform:5::el4", "package": "jbossweb-0:2.1.12-3_patch_03.2.ep5.el4", "product_name": "Red Hat JBoss Enterprise Application Platform 5 for RHEL 4", "release_date": "2012-01-31T00:00:00Z"}, {"advisory": "RHSA-2012:0074", "cpe": "cpe:/a:redhat:jboss_enterprise_application_platform:5::el5", "package": "jbossweb-0:2.1.12-3_patch_03.2.ep5.el5", "product_name": "Red Hat JBoss Enterprise Application Platform 5 for RHEL 5", "release_date": "2012-01-31T00:00:00Z"}, {"advisory": "RHSA-2012:0074", "cpe": "cpe:/a:redhat:jboss_enterprise_application_platform:5::el6", "package": "jbossweb-0:2.1.12-3_patch_03.2.ep5.el6", "product_name": "Red Hat JBoss Enterprise Application Platform 5 for RHEL 6", "release_date": "2012-01-31T00:00:00Z"}, {"advisory": "RHSA-2012:0680", "cpe": "cpe:/a:redhat:jboss_enterprise_web_server:1::el5", "package": "tomcat5-0:5.5.33-27_patch_07.ep5.el5", "product_name": "Red Hat JBoss Enterprise Web Server 1 for RHEL 5", "release_date": "2012-05-21T00:00:00Z"}, {"advisory": "RHSA-2012:0682", "cpe": "cpe:/a:redhat:jboss_enterprise_web_server:1::el5", "package": "tomcat6-0:6.0.32-24_patch_07.ep5.el5", "product_name": "Red Hat JBoss Enterprise Web Server 1 for RHEL 5", "release_date": "2012-05-21T00:00:00Z"}, {"advisory": "RHSA-2012:0680", "cpe": "cpe:/a:redhat:jboss_enterprise_web_server:1::el6", "package": "tomcat5-0:5.5.33-28_patch_07.ep5.el6", "product_name": "Red Hat JBoss Enterprise Web Server 1 for RHEL 6", "release_date": "2012-05-21T00:00:00Z"}, {"advisory": "RHSA-2012:0682", "cpe": "cpe:/a:redhat:jboss_enterprise_web_server:1::el6", "package": "tomcat6-0:6.0.32-24_patch_07.ep5.el6", "product_name": "Red Hat JBoss Enterprise Web Server 1 for RHEL 6", "release_date": "2012-05-21T00:00:00Z"}, {"advisory": "RHSA-2012:0089", "cpe": "cpe:/a:redhat:jboss_operations_network:2.4", "product_name": "Red Hat JBoss Operations Network 2.4", "release_date": "2012-02-01T00:00:00Z"}, {"advisory": "RHSA-2012:0406", "cpe": "cpe:/a:redhat:jboss_operations_network:3.0", "product_name": "Red Hat JBoss Operations Network 3.0", "release_date": "2012-03-20T00:00:00Z"}, {"advisory": "RHSA-2012:0091", "cpe": "cpe:/a:redhat:jboss_enterprise_portal_platform:4.3", "product_name": "Red Hat JBoss Portal 4.3", "release_date": "2012-02-02T00:00:00Z"}, {"advisory": "RHSA-2012:0325", "cpe": "cpe:/a:redhat:jboss_enterprise_portal_platform:5.2", "product_name": "Red Hat JBoss Portal 5.2", "release_date": "2012-02-22T00:00:00Z"}, {"advisory": "RHSA-2012:0325", "cpe": "cpe:/a:redhat:jboss_soa_platform:5.2", "product_name": "Red Hat JBoss SOA Platform 5.2", "release_date": "2012-02-22T00:00:00Z"}, {"advisory": "RHSA-2012:0077", "cpe": "cpe:/a:redhat:jboss_enterprise_web_platform:5.1", "product_name": "Red Hat JBoss Web Platform 5.1", "release_date": "2012-01-31T00:00:00Z"}, {"advisory": "RHSA-2012:0679", "cpe": "cpe:/a:redhat:jboss_enterprise_web_server:1.0", "product_name": "Red Hat JBoss Web Server 1.0", "release_date": "2012-05-21T00:00:00Z"}, {"advisory": "RHSA-2012:0681", "cpe": "cpe:/a:redhat:jboss_enterprise_web_server:1.0", "product_name": "Red Hat JBoss Web Server 1.0", "release_date": "2012-05-21T00:00:00Z"}], "bugzilla": {"description": "tomcat: hash table collisions CPU usage DoS (oCERT-2011-003)", "id": "750521", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=750521"}, "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": ["Apache Tomcat before 5.5.35, 6.x before 6.0.35, and 7.x before 7.0.23 computes hash values for form parameters without restricting the ability to trigger hash collisions predictably, which allows remote attackers to cause a denial of service (CPU consumption) by sending many crafted parameters."], "name": "CVE-2011-4858", "package_state": [{"cpe": "cpe:/a:redhat:certificate_system:7.3", "fix_state": "Will not fix", "package_name": "Tomcat", "product_name": "Red Hat Certificate System 7.3"}, {"cpe": "cpe:/a:redhat:rhel_developer_suite:3", "fix_state": "Will not fix", "package_name": "Platform", "product_name": "Red Hat Developer Suite v.3"}, {"cpe": "cpe:/a:redhat:network_satellite:5.4", "fix_state": "Not affected", "package_name": "tomcat5", "product_name": "Red Hat Satellite 5.4"}], "public_date": "2011-12-28T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2011-4858\nhttps://nvd.nist.gov/vuln/detail/CVE-2011-4858"], "threat_severity": "Moderate"}

{}