{"api_version":"1","generated_at":"2026-07-23T11:16:26+00:00","cve":"CVE-2019-6638","urls":{"html":"https://cve.report/CVE-2019-6638","api":"https://cve.report/api/cve/CVE-2019-6638.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2019-6638","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2019-6638"},"summary":{"title":"CVE-2019-6638","description":"On BIG-IP 14.1.0-14.1.0.5 and 14.0.0-14.0.0.4, Malformed http requests made to an undisclosed iControl REST endpoint can lead to infinite loop of the restjavad process.","state":"PUBLIC","assigner":"f5sirt@f5.com","published_at":"2019-07-03 19:15:00","updated_at":"2023-11-07 03:13:00"},"problem_types":["CWE-835"],"metrics":[],"references":[{"url":"http://www.securityfocus.com/bid/109106","name":"109106","refsource":"BID","tags":[],"title":"Multiple F5 BIG-IP Products CVE-2019-6638 Denial of Service Vulnerability","mime":"text/html","httpstatus":"200","archivestatus":"0"},{"url":"https://support.f5.com/csp/article/K67825238","name":"https://support.f5.com/csp/article/K67825238","refsource":"CONFIRM","tags":["Vendor Advisory"],"title":"","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"https://support.f5.com/csp/article/K67825238?utm_source=f5support&utm_medium=RSS","name":"https://support.f5.com/csp/article/K67825238?utm_source=f5support&utm_medium=RSS","refsource":"CONFIRM","tags":[],"title":"","mime":"text/html","httpstatus":"200","archivestatus":"200"},{"url":"https://support.f5.com/csp/article/K67825238?utm_source=f5support&amp%3Butm_medium=RSS","name":"https://support.f5.com/csp/article/K67825238?utm_source=f5support&amp%3Butm_medium=RSS","refsource":"","tags":[],"title":"myF5","mime":"text/html","httpstatus":"200","archivestatus":"404"},{"url":"https://www.cve.org/CVERecord?id=CVE-2019-6638","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2019-6638","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[{"cve_year":"2019","cve_id":"6638","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"a","cpe4":"f5","cpe5":"big-ip_access_policy_manager","cpe6":"*","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2019","cve_id":"6638","vulnerable":"1","versionEndIncluding":"1","cpe1":"cpe","cpe2":"2.3","cpe3":"a","cpe4":"f5","cpe5":"big-ip_access_policy_manager","cpe6":"*","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2019","cve_id":"6638","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"a","cpe4":"f5","cpe5":"big-ip_advanced_firewall_manager","cpe6":"*","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2019","cve_id":"6638","vulnerable":"1","versionEndIncluding":"1","cpe1":"cpe","cpe2":"2.3","cpe3":"a","cpe4":"f5","cpe5":"big-ip_advanced_firewall_manager","cpe6":"*","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2019","cve_id":"6638","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"a","cpe4":"f5","cpe5":"big-ip_analytics","cpe6":"*","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2019","cve_id":"6638","vulnerable":"1","versionEndIncluding":"1","cpe1":"cpe","cpe2":"2.3","cpe3":"a","cpe4":"f5","cpe5":"big-ip_analytics","cpe6":"*","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2019","cve_id":"6638","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"a","cpe4":"f5","cpe5":"big-ip_application_acceleration_manager","cpe6":"*","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2019","cve_id":"6638","vulnerable":"1","versionEndIncluding":"1","cpe1":"cpe","cpe2":"2.3","cpe3":"a","cpe4":"f5","cpe5":"big-ip_application_acceleration_manager","cpe6":"*","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2019","cve_id":"6638","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"a","cpe4":"f5","cpe5":"big-ip_application_security_manager","cpe6":"*","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2019","cve_id":"6638","vulnerable":"1","versionEndIncluding":"1","cpe1":"cpe","cpe2":"2.3","cpe3":"a","cpe4":"f5","cpe5":"big-ip_application_security_manager","cpe6":"*","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2019","cve_id":"6638","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"a","cpe4":"f5","cpe5":"big-ip_domain_name_system","cpe6":"*","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2019","cve_id":"6638","vulnerable":"1","versionEndIncluding":"1","cpe1":"cpe","cpe2":"2.3","cpe3":"a","cpe4":"f5","cpe5":"big-ip_domain_name_system","cpe6":"*","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2019","cve_id":"6638","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"a","cpe4":"f5","cpe5":"big-ip_edge_gateway","cpe6":"*","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2019","cve_id":"6638","vulnerable":"1","versionEndIncluding":"1","cpe1":"cpe","cpe2":"2.3","cpe3":"a","cpe4":"f5","cpe5":"big-ip_edge_gateway","cpe6":"*","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2019","cve_id":"6638","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"a","cpe4":"f5","cpe5":"big-ip_fraud_protection_service","cpe6":"*","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2019","cve_id":"6638","vulnerable":"1","versionEndIncluding":"1","cpe1":"cpe","cpe2":"2.3","cpe3":"a","cpe4":"f5","cpe5":"big-ip_fraud_protection_service","cpe6":"*","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2019","cve_id":"6638","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"a","cpe4":"f5","cpe5":"big-ip_global_traffic_manager","cpe6":"*","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2019","cve_id":"6638","vulnerable":"1","versionEndIncluding":"1","cpe1":"cpe","cpe2":"2.3","cpe3":"a","cpe4":"f5","cpe5":"big-ip_global_traffic_manager","cpe6":"*","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2019","cve_id":"6638","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"a","cpe4":"f5","cpe5":"big-ip_link_controller","cpe6":"*","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2019","cve_id":"6638","vulnerable":"1","versionEndIncluding":"1","cpe1":"cpe","cpe2":"2.3","cpe3":"a","cpe4":"f5","cpe5":"big-ip_link_controller","cpe6":"*","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2019","cve_id":"6638","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"a","cpe4":"f5","cpe5":"big-ip_local_traffic_manager","cpe6":"*","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2019","cve_id":"6638","vulnerable":"1","versionEndIncluding":"1","cpe1":"cpe","cpe2":"2.3","cpe3":"a","cpe4":"f5","cpe5":"big-ip_local_traffic_manager","cpe6":"*","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2019","cve_id":"6638","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"a","cpe4":"f5","cpe5":"big-ip_policy_enforcement_manager","cpe6":"*","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2019","cve_id":"6638","vulnerable":"1","versionEndIncluding":"1","cpe1":"cpe","cpe2":"2.3","cpe3":"a","cpe4":"f5","cpe5":"big-ip_policy_enforcement_manager","cpe6":"*","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2019","cve_id":"6638","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"a","cpe4":"f5","cpe5":"big-ip_webaccelerator","cpe6":"*","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"},{"cve_year":"2019","cve_id":"6638","vulnerable":"1","versionEndIncluding":"1","cpe1":"cpe","cpe2":"2.3","cpe3":"a","cpe4":"f5","cpe5":"big-ip_webaccelerator","cpe6":"*","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"}],"vendor_comments":[],"enrichments":{"kev":null,"epss":null,"legacy_qids":[]},"source_records":{"cve_program":{"data_type":"CVE","data_format":"MITRE","data_version":"4.0","CVE_data_meta":{"ID":"CVE-2019-6638","ASSIGNER":"f5sirt@f5.com","STATE":"PUBLIC"},"affects":{"vendor":{"vendor_data":[{"vendor_name":"F5","product":{"product_data":[{"product_name":"BIG-IP","version":{"version_data":[{"version_value":"BIG-IP 14.1.0-14.1.0.5"},{"version_value":"14.0.0-14.0.0.4"}]}}]}}]}},"problemtype":{"problemtype_data":[{"description":[{"lang":"eng","value":"DoS"}]}]},"references":{"reference_data":[{"refsource":"CONFIRM","name":"https://support.f5.com/csp/article/K67825238","url":"https://support.f5.com/csp/article/K67825238"},{"refsource":"BID","name":"109106","url":"http://www.securityfocus.com/bid/109106"},{"refsource":"CONFIRM","name":"https://support.f5.com/csp/article/K67825238?utm_source=f5support&utm_medium=RSS","url":"https://support.f5.com/csp/article/K67825238?utm_source=f5support&utm_medium=RSS"}]},"description":{"description_data":[{"lang":"eng","value":"On BIG-IP 14.1.0-14.1.0.5 and 14.0.0-14.0.0.4, Malformed http requests made to an undisclosed iControl REST endpoint can lead to infinite loop of the restjavad process."}]}},"nvd":{"publishedDate":"2019-07-03 19:15:00","lastModifiedDate":"2023-11-07 03:13:00","problem_types":["CWE-835"],"metrics":{"baseMetricV3":{"cvssV3":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"LOW","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"NONE","availabilityImpact":"HIGH","baseScore":6.5,"baseSeverity":"MEDIUM"},"exploitabilityScore":2.8,"impactScore":3.6},"baseMetricV2":{"cvssV2":{"version":"2.0","vectorString":"AV:N/AC:L/Au:S/C:N/I:N/A:P","accessVector":"NETWORK","accessComplexity":"LOW","authentication":"SINGLE","confidentialityImpact":"NONE","integrityImpact":"NONE","availabilityImpact":"PARTIAL","baseScore":4},"severity":"MEDIUM","exploitabilityScore":8,"impactScore":2.9,"acInsufInfo":false,"obtainAllPrivilege":false,"obtainUserPrivilege":false,"obtainOtherPrivilege":false,"userInteractionRequired":false}},"configurations":{"CVE_data_version":"4.0","nodes":[{"operator":"OR","children":[],"cpe_match":[{"vulnerable":true,"cpe23Uri":"cpe:2.3:a:f5:big-ip_local_traffic_manager:*:*:*:*:*:*:*:*","versionStartIncluding":"14.0.0","versionEndExcluding":"14.0.0.5","cpe_name":[]},{"vulnerable":true,"cpe23Uri":"cpe:2.3:a:f5:big-ip_local_traffic_manager:*:*:*:*:*:*:*:*","versionStartIncluding":"14.1.0","versionEndExcluding":"14.1.0.6","cpe_name":[]}]},{"operator":"OR","children":[],"cpe_match":[{"vulnerable":true,"cpe23Uri":"cpe:2.3:a:f5:big-ip_application_acceleration_manager:*:*:*:*:*:*:*:*","versionStartIncluding":"14.0.0","versionEndExcluding":"14.0.0.5","cpe_name":[]},{"vulnerable":true,"cpe23Uri":"cpe:2.3:a:f5:big-ip_application_acceleration_manager:*:*:*:*:*:*:*:*","versionStartIncluding":"14.1.0","versionEndExcluding":"14.1.0.6","cpe_name":[]}]},{"operator":"OR","children":[],"cpe_match":[{"vulnerable":true,"cpe23Uri":"cpe:2.3:a:f5:big-ip_advanced_firewall_manager:*:*:*:*:*:*:*:*","versionStartIncluding":"14.0.0","versionEndExcluding":"14.0.0.5","cpe_name":[]},{"vulnerable":true,"cpe23Uri":"cpe:2.3:a:f5:big-ip_advanced_firewall_manager:*:*:*:*:*:*:*:*","versionStartIncluding":"14.1.0","versionEndExcluding":"14.1.0.6","cpe_name":[]}]},{"operator":"OR","children":[],"cpe_match":[{"vulnerable":true,"cpe23Uri":"cpe:2.3:a:f5:big-ip_analytics:*:*:*:*:*:*:*:*","versionStartIncluding":"14.0.0","versionEndExcluding":"14.0.0.5","cpe_name":[]},{"vulnerable":true,"cpe23Uri":"cpe:2.3:a:f5:big-ip_analytics:*:*:*:*:*:*:*:*","versionStartIncluding":"14.1.0","versionEndExcluding":"14.1.0.6","cpe_name":[]}]},{"operator":"OR","children":[],"cpe_match":[{"vulnerable":true,"cpe23Uri":"cpe:2.3:a:f5:big-ip_access_policy_manager:*:*:*:*:*:*:*:*","versionStartIncluding":"14.0.0","versionEndExcluding":"14.0.0.5","cpe_name":[]},{"vulnerable":true,"cpe23Uri":"cpe:2.3:a:f5:big-ip_access_policy_manager:*:*:*:*:*:*:*:*","versionStartIncluding":"14.1.0","versionEndExcluding":"14.1.0.6","cpe_name":[]}]},{"operator":"OR","children":[],"cpe_match":[{"vulnerable":true,"cpe23Uri":"cpe:2.3:a:f5:big-ip_application_security_manager:*:*:*:*:*:*:*:*","versionStartIncluding":"14.0.0","versionEndExcluding":"14.0.0.5","cpe_name":[]},{"vulnerable":true,"cpe23Uri":"cpe:2.3:a:f5:big-ip_application_security_manager:*:*:*:*:*:*:*:*","versionStartIncluding":"14.1.0","versionEndExcluding":"14.1.0.6","cpe_name":[]}]},{"operator":"OR","children":[],"cpe_match":[{"vulnerable":true,"cpe23Uri":"cpe:2.3:a:f5:big-ip_domain_name_system:*:*:*:*:*:*:*:*","versionStartIncluding":"14.0.0","versionEndExcluding":"14.0.0.5","cpe_name":[]},{"vulnerable":true,"cpe23Uri":"cpe:2.3:a:f5:big-ip_domain_name_system:*:*:*:*:*:*:*:*","versionStartIncluding":"14.1.0","versionEndExcluding":"14.1.0.6","cpe_name":[]}]},{"operator":"OR","children":[],"cpe_match":[{"vulnerable":true,"cpe23Uri":"cpe:2.3:a:f5:big-ip_edge_gateway:*:*:*:*:*:*:*:*","versionStartIncluding":"14.0.0","versionEndExcluding":"14.0.0.5","cpe_name":[]},{"vulnerable":true,"cpe23Uri":"cpe:2.3:a:f5:big-ip_edge_gateway:*:*:*:*:*:*:*:*","versionStartIncluding":"14.1.0","versionEndExcluding":"14.1.0.6","cpe_name":[]}]},{"operator":"OR","children":[],"cpe_match":[{"vulnerable":true,"cpe23Uri":"cpe:2.3:a:f5:big-ip_global_traffic_manager:*:*:*:*:*:*:*:*","versionStartIncluding":"14.0.0","versionEndExcluding":"14.0.0.5","cpe_name":[]},{"vulnerable":true,"cpe23Uri":"cpe:2.3:a:f5:big-ip_global_traffic_manager:*:*:*:*:*:*:*:*","versionStartIncluding":"14.1.0","versionEndExcluding":"14.1.0.6","cpe_name":[]}]},{"operator":"OR","children":[],"cpe_match":[{"vulnerable":true,"cpe23Uri":"cpe:2.3:a:f5:big-ip_link_controller:*:*:*:*:*:*:*:*","versionStartIncluding":"14.0.0","versionEndExcluding":"14.0.0.5","cpe_name":[]},{"vulnerable":true,"cpe23Uri":"cpe:2.3:a:f5:big-ip_link_controller:*:*:*:*:*:*:*:*","versionStartIncluding":"14.1.0","versionEndExcluding":"14.1.0.6","cpe_name":[]}]},{"operator":"OR","children":[],"cpe_match":[{"vulnerable":true,"cpe23Uri":"cpe:2.3:a:f5:big-ip_policy_enforcement_manager:*:*:*:*:*:*:*:*","versionStartIncluding":"14.0.0","versionEndExcluding":"14.0.0.5","cpe_name":[]},{"vulnerable":true,"cpe23Uri":"cpe:2.3:a:f5:big-ip_policy_enforcement_manager:*:*:*:*:*:*:*:*","versionStartIncluding":"14.1.0","versionEndExcluding":"14.1.0.6","cpe_name":[]}]},{"operator":"OR","children":[],"cpe_match":[{"vulnerable":true,"cpe23Uri":"cpe:2.3:a:f5:big-ip_webaccelerator:*:*:*:*:*:*:*:*","versionStartIncluding":"14.0.0","versionEndExcluding":"14.0.0.5","cpe_name":[]},{"vulnerable":true,"cpe23Uri":"cpe:2.3:a:f5:big-ip_webaccelerator:*:*:*:*:*:*:*:*","versionStartIncluding":"14.1.0","versionEndExcluding":"14.1.0.6","cpe_name":[]}]},{"operator":"OR","children":[],"cpe_match":[{"vulnerable":true,"cpe23Uri":"cpe:2.3:a:f5:big-ip_fraud_protection_service:*:*:*:*:*:*:*:*","versionStartIncluding":"14.0.0","versionEndExcluding":"14.0.0.5","cpe_name":[]},{"vulnerable":true,"cpe23Uri":"cpe:2.3:a:f5:big-ip_fraud_protection_service:*:*:*:*:*:*:*:*","versionStartIncluding":"14.1.0","versionEndExcluding":"14.1.0.6","cpe_name":[]}]}]}},"legacy_mitre":{"record":{"CveYear":"2019","CveId":"6638","Ordinal":"144369","Title":"CVE-2019-6638","CVE":"CVE-2019-6638","Year":"2019"},"notes":[{"CveYear":"2019","CveId":"6638","Ordinal":"1","NoteData":"On BIG-IP 14.1.0-14.1.0.5 and 14.0.0-14.0.0.4, Malformed http requests made to an undisclosed iControl REST endpoint can lead to infinite loop of the restjavad process.","Type":"Description","Title":null},{"CveYear":"2019","CveId":"6638","Ordinal":"2","NoteData":"2019-07-03","Type":"Other","Title":"Published"},{"CveYear":"2019","CveId":"6638","Ordinal":"3","NoteData":"2019-10-09","Type":"Other","Title":"Modified"}]}}}