CVE:CVE-2019-6471
CNNVD:CNNVD-201906-823
ISC BIND是美国ISC公司的一套实现了DNS协议的开源软件。
ISC BIND中存在竞争条件问题漏洞。该漏洞源于网络系统或产品在运行过程中，并发代码需要互斥地访问共享资源时，对于并发访问的处理不当。以下产品及版本受到影响：BIND 9.11.0版本至9.11.7，9.12.0版本至9.12.4-P1版本，9.14.0版本至9.14.2版本，BIND 9.13版本（development branch），BIND 9.15（development branch），BIND Supported Preview Edition 9.11.3-S1版本至9.11.7-S1版本。
solution:Upgrade f5 big-ip_local_traffic_manager to a higher version than 11.5.9,11.6.4,12.1.4,13.1.1,14.0.0,14.1.0,15.0.0,and avoid the version [11.5.2,11.5.9],[11.6.1,11.6.4],[12.1.0,12.1.4],[13.1.0,13.1.1],14.0.0,14.1.0,15.0.0; Upgrade f5 big-ip_application_acceleration_manager to a higher version than 11.5.9,11.6.4,12.1.4,13.1.1,14.0.0,14.1.0,15.0.0,and avoid the version [11.5.2,11.5.9],[11.6.1,11.6.4],[12.1.0,12.1.4],[13.1.0,13.1.1],14.0.0,14.1.0,15.0.0; Upgrade f5 big-ip_advanced_firewall_manager to a higher version than 11.5.9,11.6.4,12.1.4,13.1.1,14.0.0,14.1.0,15.0.0,and avoid the version [11.5.2,11.5.9],[11.6.1,11.6.4],[12.1.0,12.1.4],[13.1.0,13.1.1],14.0.0,14.1.0,15.0.0; Upgrade f5 big-ip_analytics to a higher version than 11.5.9,11.6.4,12.1.4,13.1.1,14.0.0,14.1.0,15.0.0,and avoid the version [11.5.2,11.5.9],[11.6.1,11.6.4],[12.1.0,12.1.4],[13.1.0,13.1.1],14.0.0,14.1.0,15.0.0; Upgrade f5 big-ip_access_policy_manager to a higher version than 11.5.9,11.6.4,12.1.4,13.1.1,14.0.0,14.1.0,15.0.0,and avoid the version [11.5.2,11.5.9],[11.6.1,11.6.4],[12.1.0,12.1.4],[13.1.0,13.1.1],14.0.0,14.1.0,15.0.0; Upgrade f5 big-ip_application_security_manager to a higher version than 11.5.9,11.6.4,12.1.4,13.1.1,14.0.0,14.1.0,15.0.0,and avoid the version [11.5.2,11.5.9],[11.6.1,11.6.4],[12.1.0,12.1.4],[13.1.0,13.1.1],14.0.0,14.1.0,15.0.0; Upgrade f5 big-ip_edge_gateway to a higher version than 11.5.9,11.6.4,12.1.4,13.1.1,14.0.0,14.1.0,15.0.0,and avoid the version [11.5.2,11.5.9],[11.6.1,11.6.4],[12.1.0,12.1.4],[13.1.0,13.1.1],14.0.0,14.1.0,15.0.0; Upgrade f5 big-ip_fraud_protection_service to a higher version than 11.5.9,11.6.4,12.1.4,13.1.1,14.0.0,14.1.0,15.0.0,and avoid the version [11.5.2,11.5.9],[11.6.1,11.6.4],[12.1.0,12.1.4],[13.1.0,13.1.1],14.0.0,14.1.0,15.0.0; Upgrade f5 big-ip_global_traffic_manager to a higher version than 11.5.9,11.6.4,12.1.4,13.1.1,9.2.2,14.0.0,14.1.0,15.0.0,and avoid the version [11.5.2,11.5.9],[11.6.1,11.6.4],[12.1.0,12.1.4],[13.1.0,13.1.1],9.2.2,14.0.0,14.1.0,15.0.0; Upgrade f5 big-ip_link_controller to a higher version than 11.5.9,11.6.4,12.1.4,13.1.1,9.2.2,14.0.0,14.1.0,15.0.0,and avoid the version [11.5.2,11.5.9],[11.6.1,11.6.4],[12.1.0,12.1.4],[13.1.0,13.1.1],9.2.2,14.0.0,14.1.0,15.0.0; Upgrade f5 big-ip_webaccelerator to a higher version than 11.5.9,11.6.4,12.1.4,13.1.1,9.2.2,14.0.0,14.1.0,15.0.0,and avoid the version [11.5.2,11.5.9],[11.6.1,11.6.4],[12.1.0,12.1.4],[13.1.0,13.1.1],9.2.2,14.0.0,14.1.0,15.0.0; Upgrade f5 big-ip_policy_enforcement_manager to a higher version than 11.5.9,11.6.4,12.1.4,13.1.1,9.2.2,14.0.0,14.1.0,15.0.0,and avoid the version [11.5.2,11.5.9],[11.6.1,11.6.4],[12.1.0,12.1.4],[13.1.0,13.1.1],9.2.2,14.0.0,14.1.0,15.0.0; Upgrade isc bind to a higher version than 9.11.7,9.12.3,9.13.7,9.14.2,9.15.5,9.11.3:s1,9.11.7:s1,9.12.4,9.12.4:p1,and avoid the version [9.11.0,9.11.7],[9.12.0,9.12.3],[9.13.0,9.13.7],[9.14.0,9.14.2],[9.15.0,9.15.5],9.11.3:s1,9.11.7:s1,9.12.4,9.12.4:p1; Upgrade f5 enterprise_manager to a higher version than 3.1.1,and avoid the version 3.1.1; Upgrade f5 big-iq_centralized_management to a higher version than 5.4.0,6.1.0,and avoid the version [5.1.0,5.4.0],[6.0.0,6.1.0]; Upgrade f5 iworkflow to a higher version than 2.3.0,and avoid the version 2.3.0; Upgrade f5 big-ip_domain_name_system to a higher version than 11.5.9,11.6.4,12.1.4,13.1.1,9.2.2,14.0.0,14.1.0,15.0.0,and avoid the version [11.5.2,11.5.9],[11.6.1,11.6.4],[12.1.0,12.1.4],[13.1.0,13.1.1],9.2.2,14.0.0,14.1.0,15.0.0