CVE:CVE-2016-4414
CNNVD:CNNVD-201605-091
Quassel（又名Quassel IRC）是Quassel IRC团队开发的一款跨平台的分布式IRC聊天客户端，它采用QT应用框架开发，PostgreSQL数据库存储数据。
Quassel 0.12.4之前版本的core/coreauthhandler.cpp文件中的‘onReadyRead’函数存在安全漏洞。远程攻击者可借助无效的握手数据利用该漏洞造成拒绝服务（空指针逆向引用和崩溃）。
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 quassel-irc quassel to a higher version than 0.12.3,and avoid the version (,0.12.3]; Upgrade fedoraproject fedora to a higher version than 22,23,24,and avoid the version 22,23,24