CVE:CVE-2008-2142
CNNVD:CNNVD-200805-100
Emacs 21和Xemacs自动加载和运行与其他在Emacs中进行编辑的文件相连的.flc 快速锁文件，这使得本地协助式攻击者可以执行任意代码。
solution:Upgrade gnu emacs to a higher version than 21.3.1,and avoid the version 21.3.1; Upgrade gnu xemacs to a higher version than *