CVE:CVE-2021-21702
CNNVD:CNNVD-202102-409
PHP（PHP：Hypertext Preprocessor，PHP：超文本预处理器）是PHP社区的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 SoapClient 存在代码问题漏洞，攻击者可利用该漏洞强制一个空指针被解引用，从而触发拒绝服务。以下产品及型号受到影响：7.3.x 至 7.3.27, 7.4.x 至 7.4.15 and 8.0.x 至 8.0.2。
solution:Upgrade php php to a higher version than 7.3.27,7.4.15,8.0.2,and avoid the version [7.3.0,7.3.27),[7.4.0,7.4.15),[8.0.0,8.0.2); Upgrade debian debian_linux to a higher version than 9.0,10.0,and avoid the version 9.0,10.0; Upgrade netapp clustered_data_ontap to a higher version than -; Upgrade oracle communications_diameter_signaling_router to a higher version than 8.5.0,and avoid the version [8.0.0,8.5.0]