CVE:CVE-2011-2561
CNNVD:CNNVD-201108-464
Cisco Unified Communications Manager是企业级IP电话呼叫处理系统。
Cisco Unified Communications Manager (CUCM，formerly CallManager) 7.1(5b)su4之前的7.x版本和8.0(1)之前的8.x版本的SIP进程中存在拒绝服务漏洞。此漏洞源于Media Termination Point (MTP)的某些配置，仅用g729ar8解码器配置MTP时，可能会观察单程音频。在某些情况下，会发生服务中断，在处理SIP呼叫的SDP时，SIP进程将生成栈数据转储。
solution:Upgrade cisco unified_communications_manager to a higher version than 7.0(1su1,7.0(1su1a,7.0(2,7.0(2a,7.0(2asu1,7.0(2asu2,7.1(2a,7.1(2asu1,7.1(2b,7.1(2bsu1,7.1(3,7.1(3a,7.1(3asu1,7.1(3asu1a,7.1(3b,7.1(3bsu1,7.1(3bsu2,7.1(5,7.1(5su1,7.1(5su1a,7.1(5a,7.1(5b,7.1(5bsu1,7.1(5bsu1a,7.1(5bsu2,7.1(5bsu3,8.0,and avoid the version 7.0(1)su1,7.0(1)su1a,7.0(2),7.0(2a),7.0(2a)su1,7.0(2a)su2,7.1(2a),7.1(2a)su1,7.1(2b),7.1(2b)su1,7.1(3),7.1(3a),7.1(3a)su1,7.1(3a)su1a,7.1(3b),7.1(3b)su1,7.1(3b)su2,7.1(5),7.1(5)su1,7.1(5)su1a,7.1(5a),7.1(5b),7.1(5b)su1,7.1(5b)su1a,7.1(5b)su2,7.1(5b)su3,8.0