CVE:CVE-2018-12227
CNNVD:CNNVD-201806-750
Digium Asterisk Open Source和Certified Asterisk都是美国Digium公司的开源电话交换机（PBX）系统软件。该软件支持语音信箱、多方语音会议、交互式语音应答(IVR)等。
Digium Asterisk Open Source和Certified Asterisk中存在安全漏洞。攻击者可利用该漏洞枚举用户名称。以下产品和版本受到影响：Asterisk Open Source 13.21.1之前的13.x版本，14.7.7之前的14.x版本，15.4.1之前的15.x版本；Certified Asterisk 13.18-cert4之前的13.18-cert版本，13.21-cert2之前的13.21-cert版本。
solution:Upgrade digium asterisk to a higher version than 13.21.1,14.7.7,15.4.1,and avoid the version [13.0.0,13.21.1),(14.0.0,14.7.7),[15.0.0,15.4.1); Upgrade digium certified_asterisk to a higher version than 13.18:cert1,13.18:cert2,13.18:cert3,13.21:cert1,and avoid the version 13.18:cert1,13.18:cert2,13.18:cert3,13.21:cert1; Upgrade debian debian_linux to a higher version than 9.0,and avoid the version 9.0