CVE:CVE-2016-6172
CNNVD:CNNVD-201607-080
PowerDNS（又名pdns）Authoritative Server是荷兰PowerDNS公司的一款DNS服务器。
PowerDNS Authoritative Server 4.0.1之前的版本中存在安全漏洞。远程主域名服务器端的攻击者可借助大的AXFR或IXFR响应利用该漏洞造成拒绝服务（内存耗尽和辅助DNS服务器崩溃）。
solution:Upgrade opensuse leap to a higher version than 42.1,and avoid the version 42.1; Upgrade opensuse opensuse to a higher version than 13.2,and avoid the version 13.2; Upgrade powerdns authoritative_server to a higher version than 4.0.0,and avoid the version (,4.0.0]