CVE:CVE-2015-5523
CNNVD:CNNVD-201508-053
Tidy是美国万维网联盟（W3C）的研究员Dave Raggett所开发的一个用于纠正和清理HTML文件的错误及整齐排列代码（即缩排）的软件及函数库。
Tidy 4.9.30及之前版本的lexer.c文件中的‘ParseValue’函数存在安全漏洞。远程攻击者可借助空超链接前的多个空格字符利用该漏洞造成拒绝服务（崩溃）。
solution:Upgrade canonical ubuntu_linux to a higher version than 12.04,14.04,15.04,and avoid the version 12.04,14.04,15.04; Upgrade debian debian_linux to a higher version than 7.0,8.0,and avoid the version 7.0,8.0; Upgrade apple iphone_os to a higher version than 8.2,and avoid the version (,8.2]; Upgrade apple mac_os_x to a higher version than 10.6.8,and avoid the version (,10.6.8]; Upgrade apple watchos to a higher version than 1.0.1,and avoid the version (,1.0.1]; Upgrade htacg tidy to a higher version than 4.9.30,and avoid the version (,4.9.30]