CVE:CVE-2015-8866
CNNVD:CNNVD-201604-561
PHP（PHP：Hypertext Preprocessor，PHP：超文本预处理器）是PHP Group和开放源代码社区共同维护的一种开源的通用计算机脚本语言。该语言主要用于Web开发，支持多种数据库及操作系统。
PHP 5.5.22之前版本和5.6.6之前5.6.x版本的ext/libxml/libxml.c文件中存在安全漏洞，该漏洞源于当程序启用PHP-FPM时，程序没有确保进程中的libxml_disable_entity_loader更改不影响其他线程。远程攻击者可借助特制的XML文档利用该漏洞实施XML External Entity (XXE)和XML Entity Expansion (XEE)攻击。
solution:Upgrade php php to a higher version than 5.5.22,5.6.6,7.0.27,7.1.13,7.2.1,and avoid the version [5.5.0,5.5.22),[5.6.0,5.6.6),[7.0.0,7.0.27),[7.1.0,7.1.13),[7.2.0,7.2.1); Upgrade canonical ubuntu_linux to a higher version than 12.04,14.04,15.10,and avoid the version 12.04,14.04,15.10; 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 suse linux_enterprise_module_for_web_scripting to a higher version than 12,and avoid the version 12; Upgrade suse linux_enterprise_software_development_kit to a higher version than 12,12:sp1,and avoid the version 12,12:sp1