CVE:CVE-2019-9639
CNNVD:CNNVD-201903-307
PHP（PHP：Hypertext Preprocessor，PHP：超文本预处理器）是PHPGroup和开放源代码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。EXIF component是其中的一个可交换图像文件格式处理组件。
PHP 7.1.27之前版本、7.2.16之前的7.2.x版本和7.3.3之前的7.3.x版本中的EXIF组件的‘exif_process_IFD_in_MAKERNOTE’函数存在缓冲区错误漏洞。该漏洞源于网络系统或产品在内存上执行操作时，未正确验证数据边界，导致向关联的其他内存位置上执行了错误的读写操作。攻击者可利用该漏洞导致缓冲区溢出或堆溢出等。
solution:Upgrade php php to a higher version than 7.1.27,7.2.16,7.3.3,and avoid the version (,7.1.27),[7.2.0,7.2.16),[7.3.0,7.3.3); Upgrade debian debian_linux to a higher version than 8.0,9.0,and avoid the version 8.0,9.0; Upgrade canonical ubuntu_linux to a higher version than 12.04,14.04,16.04,18.04,18.10,and avoid the version 12.04,14.04,16.04,18.04,18.10; Upgrade opensuse leap to a higher version than 15.0,15.1,42.3,and avoid the version 15.0,15.1,42.3; Upgrade netapp storage_automation_store to a higher version than -; Upgrade redhat software_collections to a higher version than 1.0,and avoid the version 1.0