By design, BIND is intended to limit the number of TCP clients that can be connected at any given time. The number of allowed connections is a tunable parameter which, if unset, defaults to a conservative value for most servers. Unfortunately, the code which was intended to limit the number of simultaneous connections contained an error which could be exploited to grow the number of simultaneous connections beyond this limit. Versions affected: BIND 9.9.0 -> 9.10.8-P1, 9.11.0 -> 9.11.6, 9.12.0 -> 9.12.4, 9.14.0. BIND 9 Supported Preview Edition versions 9.9.3-S1 -> 9.11.5-S3, and 9.11.5-S5. Versions 9.13.0 -> 9.13.7 of the 9.13 development branch are also affected. Versions prior to BIND 9.9.0 have not been evaluated for vulnerability to CVE-2018-5743.
This vulnerability carries a HIGH severity rating with a CVSS v3.1 score of 7.5, indicating it can be exploited remotely over the network with relatively low complexity without requiring user interaction and does not require pre-existing privileges . The vulnerability impacts and availability (service disruption) for affected systems. Impacting 17 products from f5, from f5, from f5 and 14 others, organizations running these solutions should prioritize assessment and patching.
First disclosed in 2019, this vulnerability was reported during a period defined by widespread IoT adoption challenges, mobile security concerns, and the emergence of advanced persistent threat (APT) techniques. Contemporary mitigation strategies focused on secure development practices and third-party component vetting.
2019-10-09T16:15:13.763
2024-11-21T04:09:17.967
Modified
CVSSv3.1: 7.5 (HIGH)
AV:N/AC:M/Au:N/C:N/I:N/A:P
8.6
2.9
| Type | Vendor | Product | Version/Range | Vulnerable? |
|---|---|---|---|---|
| Application | f5 | big-ip_local_traffic_manager | ≤ 11.6.5 | Yes |
| Application | f5 | big-ip_local_traffic_manager | ≤ 12.1.4 | Yes |
| Application | f5 | big-ip_local_traffic_manager | ≤ 13.1.1 | Yes |
| Application | f5 | big-ip_local_traffic_manager | ≤ 14.1.0 | Yes |
| Application | f5 | big-ip_local_traffic_manager | 15.0.0 | Yes |
| Application | f5 | big-ip_application_acceleration_manager | ≤ 11.6.5 | Yes |
| Application | f5 | big-ip_application_acceleration_manager | ≤ 12.1.4 | Yes |
| Application | f5 | big-ip_application_acceleration_manager | ≤ 13.1.1 | Yes |
| Application | f5 | big-ip_application_acceleration_manager | ≤ 14.1.0 | Yes |
| Application | f5 | big-ip_application_acceleration_manager | 15.0.0 | Yes |
| Application | f5 | big-ip_advanced_firewall_manager | ≤ 11.6.5 | Yes |
| Application | f5 | big-ip_advanced_firewall_manager | ≤ 12.1.4 | Yes |
| Application | f5 | big-ip_advanced_firewall_manager | ≤ 13.1.1 | Yes |
| Application | f5 | big-ip_advanced_firewall_manager | ≤ 14.1.0 | Yes |
| Application | f5 | big-ip_advanced_firewall_manager | 15.0.0 | Yes |
| Application | f5 | big-ip_analytics | ≤ 11.6.5 | Yes |
| Application | f5 | big-ip_analytics | ≤ 12.1.4 | Yes |
| Application | f5 | big-ip_analytics | ≤ 13.1.1 | Yes |
| Application | f5 | big-ip_analytics | ≤ 14.1.0 | Yes |
| Application | f5 | big-ip_analytics | 15.0.0 | Yes |
| Application | f5 | big-ip_access_policy_manager | ≤ 11.6.5 | Yes |
| Application | f5 | big-ip_access_policy_manager | ≤ 12.1.4 | Yes |
| Application | f5 | big-ip_access_policy_manager | ≤ 13.1.1 | Yes |
| Application | f5 | big-ip_access_policy_manager | ≤ 14.1.0 | Yes |
| Application | f5 | big-ip_access_policy_manager | 15.0.0 | Yes |
| Application | f5 | big-ip_application_security_manager | ≤ 11.6.5 | Yes |
| Application | f5 | big-ip_application_security_manager | ≤ 12.1.4 | Yes |
| Application | f5 | big-ip_application_security_manager | ≤ 13.1.1 | Yes |
| Application | f5 | big-ip_application_security_manager | ≤ 14.1.1 | Yes |
| Application | f5 | big-ip_application_security_manager | 15.0.0 | Yes |
| Application | f5 | big-ip_edge_gateway | ≤ 11.6.5 | Yes |
| Application | f5 | big-ip_edge_gateway | ≤ 12.1.4 | Yes |
| Application | f5 | big-ip_edge_gateway | ≤ 13.1.1 | Yes |
| Application | f5 | big-ip_edge_gateway | ≤ 14.1.0 | Yes |
| Application | f5 | big-ip_edge_gateway | 15.0.0 | Yes |
| Application | f5 | big-ip_fraud_protection_service | ≤ 11.6.5 | Yes |
| Application | f5 | big-ip_fraud_protection_service | ≤ 12.1.4 | Yes |
| Application | f5 | big-ip_fraud_protection_service | ≤ 13.1.1 | Yes |
| Application | f5 | big-ip_fraud_protection_service | ≤ 14.1.0 | Yes |
| Application | f5 | big-ip_fraud_protection_service | 15.0.0 | Yes |
| Application | f5 | big-ip_global_traffic_manager | ≤ 11.6.5 | Yes |
| Application | f5 | big-ip_global_traffic_manager | ≤ 12.1.4 | Yes |
| Application | f5 | big-ip_global_traffic_manager | ≤ 13.1.1 | Yes |
| Application | f5 | big-ip_global_traffic_manager | ≤ 14.1.0 | Yes |
| Application | f5 | big-ip_global_traffic_manager | 15.0.0 | Yes |
| Application | f5 | big-ip_link_controller | ≤ 11.6.5 | Yes |
| Application | f5 | big-ip_link_controller | ≤ 12.1.4 | Yes |
| Application | f5 | big-ip_link_controller | ≤ 13.1.1 | Yes |
| Application | f5 | big-ip_link_controller | ≤ 14.1.0 | Yes |
| Application | f5 | big-ip_link_controller | 15.0.0 | Yes |
| Application | f5 | big-ip_webaccelerator | ≤ 11.6.5 | Yes |
| Application | f5 | big-ip_webaccelerator | ≤ 12.1.4 | Yes |
| Application | f5 | big-ip_webaccelerator | ≤ 13.1.1 | Yes |
| Application | f5 | big-ip_webaccelerator | ≤ 14.1.0 | Yes |
| Application | f5 | big-ip_webaccelerator | 15.0.0 | Yes |
| Application | f5 | big-ip_policy_enforcement_manager | ≤ 11.6.5 | Yes |
| Application | f5 | big-ip_policy_enforcement_manager | ≤ 12.1.4 | Yes |
| Application | f5 | big-ip_policy_enforcement_manager | ≤ 13.1.1 | Yes |
| Application | f5 | big-ip_policy_enforcement_manager | ≤ 14.1.0 | Yes |
| Application | f5 | big-ip_policy_enforcement_manager | 15.0.0 | Yes |
| Application | isc | bind | ≤ 9.10.8 | Yes |
| Application | isc | bind | ≤ 9.11.6 | Yes |
| Application | isc | bind | ≤ 9.12.4 | Yes |
| Application | isc | bind | ≤ 9.13.7 | Yes |
| Application | isc | bind | 9.9.3 | Yes |
| Application | isc | bind | 9.10.8 | Yes |
| Application | isc | bind | 9.11.5 | Yes |
| Application | isc | bind | 9.11.5 | Yes |
| Application | isc | bind | 9.14.0 | Yes |
| Application | f5 | enterprise_manager | 3.1.1 | Yes |
| Application | f5 | big-iq_centralized_management | ≤ 5.4.0 | Yes |
| Application | f5 | big-iq_centralized_management | ≤ 6.1.0 | Yes |
| Application | f5 | iworkflow | 2.3.0 | Yes |
| Application | f5 | big-ip_domain_name_system | ≤ 11.6.5 | Yes |
| Application | f5 | big-ip_domain_name_system | ≤ 12.1.4 | Yes |
| Application | f5 | big-ip_domain_name_system | ≤ 13.1.1 | Yes |
| Application | f5 | big-ip_domain_name_system | ≤ 14.1.0 | Yes |
| Application | f5 | big-ip_domain_name_system | 15.0.0 | Yes |
SecUtils normalizes and enriches National Vulnerability Database (NVD) records by standardizing vendor and product identifiers, aggregating vulnerability metadata from both NVD and MITRE sources, and providing structured context for security teams. For f5's affected products, we extract Common Platform Enumeration (CPE) data, Common Weakness Enumeration (CWE) classifications, CVSS severity metrics, and reference data to enable rapid vulnerability prioritization and asset correlation. This record contains no exploit code, proof-of-concept instructions, or attack methodologies—only defensive intelligence necessary for patch management, risk assessment, and security operations.