CVE:CVE-2012-2871
CNNVD:CNNVD-201208-694
Google Chrome是美国谷歌（Google）公司开发的一款Web浏览器。
使用Google Chrome 21.0.1180.89之前版本中的libxml2 2.9.0-rc1和早期版本存在漏洞，该漏洞源于处理XSL转换期间，未正确支持未明变量。远程攻击者可利用该漏洞通过特制的文档相关include/libxml/tree.h中的_xmlNs数据，导致拒绝服务或未知其他影响。
solution:Upgrade apple iphone_os to a higher version than 6.1.4,1.0.0,1.0.1,1.0.2,1.1.0,1.1.1,1.1.2,1.1.3,1.1.4,1.1.5,2.0,2.0.0,2.0.1,2.0.2,2.1,2.1.1,2.2,2.2.1,3.0,3.0.1,3.1,3.1.2,3.1.3,3.2,3.2.1,3.2.2,4.0,4.0.1,4.0.2,4.1,4.2.1,4.2.5,4.2.8,4.3.0,4.3.1,4.3.2,4.3.3,4.3.5,5.0,5.0.1,5.1,5.1.1,6.0,6.0.1,6.0.2,6.1,6.1.2,6.1.3,and avoid the version (,6.1.4],1.0.0,1.0.1,1.0.2,1.1.0,1.1.1,1.1.2,1.1.3,1.1.4,1.1.5,2.0,2.0.0,2.0.1,2.0.2,2.1,2.1.1,2.2,2.2.1,3.0,3.0.1,3.1,3.1.2,3.1.3,3.2,3.2.1,3.2.2,4.0,4.0.1,4.0.2,4.1,4.2.1,4.2.5,4.2.8,4.3.0,4.3.1,4.3.2,4.3.3,4.3.5,5.0,5.0.1,5.1,5.1.1,6.0,6.0.1,6.0.2,6.1,6.1.2,6.1.3; Upgrade google chrome to a higher version than 21.0.1180.88,21.0.1180.0,21.0.1180.1,21.0.1180.2,21.0.1180.31,21.0.1180.32,21.0.1180.33,21.0.1180.34,21.0.1180.35,21.0.1180.36,21.0.1180.37,21.0.1180.38,21.0.1180.39,21.0.1180.41,21.0.1180.46,21.0.1180.47,21.0.1180.48,21.0.1180.49,21.0.1180.50,21.0.1180.51,21.0.1180.52,21.0.1180.53,21.0.1180.54,21.0.1180.55,21.0.1180.56,21.0.1180.57,21.0.1180.59,21.0.1180.60,21.0.1180.61,21.0.1180.62,21.0.1180.63,21.0.1180.64,21.0.1180.68,21.0.1180.69,21.0.1180.70,21.0.1180.71,21.0.1180.72,21.0.1180.73,21.0.1180.74,21.0.1180.75,21.0.1180.76,21.0.1180.77,21.0.1180.78,21.0.1180.79,21.0.1180.80,21.0.1180.81,21.0.1180.82,21.0.1180.83,21.0.1180.84,21.0.1180.85,21.0.1180.86,21.0.1180.87,and avoid the version (,21.0.1180.88],21.0.1180.0,21.0.1180.1,21.0.1180.2,21.0.1180.31,21.0.1180.32,21.0.1180.33,21.0.1180.34,21.0.1180.35,21.0.1180.36,21.0.1180.37,21.0.1180.38,21.0.1180.39,21.0.1180.41,21.0.1180.46,21.0.1180.47,21.0.1180.48,21.0.1180.49,21.0.1180.50,21.0.1180.51,21.0.1180.52,21.0.1180.53,21.0.1180.54,21.0.1180.55,21.0.1180.56,21.0.1180.57,21.0.1180.59,21.0.1180.60,21.0.1180.61,21.0.1180.62,21.0.1180.63,21.0.1180.64,21.0.1180.68,21.0.1180.69,21.0.1180.70,21.0.1180.71,21.0.1180.72,21.0.1180.73,21.0.1180.74,21.0.1180.75,21.0.1180.76,21.0.1180.77,21.0.1180.78,21.0.1180.79,21.0.1180.80,21.0.1180.81,21.0.1180.82,21.0.1180.83,21.0.1180.84,21.0.1180.85,21.0.1180.86,21.0.1180.87; Upgrade xmlsoft libxml2 to a higher version than *:rc1,and avoid the version *:rc1