CVE:CVE-2017-3808
CNNVD:CNNVD-201704-1070
Cisco Unified Communications Manager（CUCM，Unified CM，CallManager）是美国思科（Cisco）公司的一款统一通信系统中的呼叫处理组件。该组件提供了一种可扩展、可分布和高可用的企业IP电话呼叫处理解决方案。
Cisco Unified CM的Session Initiation Protocol (SIP) UDP限制进程存在安全漏洞。远程未授权的攻击者可通过发生大量的SIP消息利用该漏洞造成拒绝服务（设备和服务重启）。
solution:Upgrade cisco unified_communications_manager to a higher version than 10.0(1.10000.12,10.0_base,10.5(0.98000.88,10.5(1.98991.13,10.5(1.99995.9,10.5(2.10000.5,10.5(2.12901.1,10.5(2.13900.9,10.5(3.10000.9,10.5_base,11.0(0.98000.225,11.0(1.10000.10,11.5(0.98000.480,11.5(0.98000.486,11.5(0.99838.4,11.5(1.2,11.5(1.10000.6,11.5(1.11007.2,11.5(1.12000.1,11.5.0,and avoid the version 10.0(1.10000.12),10.0_base,10.5(0.98000.88),10.5(1.98991.13),10.5(1.99995.9),10.5(2.10000.5),10.5(2.12901.1),10.5(2.13900.9),10.5(3.10000.9),10.5_base,11.0(0.98000.225),11.0(1.10000.10),11.5(0.98000.480),11.5(0.98000.486),11.5(0.99838.4),11.5(1.2),11.5(1.10000.6),11.5(1.11007.2),11.5(1.12000.1),11.5.0