CVE:CVE-2012-6702
CNNVD:CNNVD-201606-144
Expat是美国软件开发者吉姆-克拉克所研发的一个基于C语言的XML解析器库，它采用了一个面向流的解析器。
Expat中存在安全漏洞。当程序在调用XML_SetHashSalt的解析器中使用或传递一个0种子时，攻击者可利用该漏洞破坏加密保护机制。
solution:Upgrade libexpat_project libexpat to a higher version than 2.2.0,and avoid the version (,2.2.0); Upgrade canonical ubuntu_linux to a higher version than 12.04,14.04,15.10,16.04,and avoid the version 12.04,14.04,15.10,16.04; Upgrade debian debian_linux to a higher version than 8.0,and avoid the version 8.0; Upgrade google android to a higher version than 4.4.4,5.0.2,5.1.1,6.0,6.0.1,and avoid the version 4.4.4,5.0.2,5.1.1,6.0,6.0.1