Vulnerability Information
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Vulnerability Title
N/A
Vulnerability Description
The zend_string_extend function in Zend/zend_string.h in PHP through 7.1.5 does not prevent changes to string objects that result in a negative length, which allows remote attackers to cause a denial of service (application crash) or possibly have unspecified other impact by leveraging a script's use of .= with a long string.
CVSS Information
N/A
Vulnerability Type
N/A
Vulnerability Title
PHP 安全漏洞
Vulnerability Description
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 7.1.5及之前的版本中的Zend/zend_string.h文件的‘zend_string_extend’函数存在安全漏洞，该漏洞源于程序没有阻止字符串对象的更改，导致输出负长度值。远程攻击者可利用该漏洞造成拒绝服务（应用程序崩溃）。
CVSS Information
N/A
Vulnerability Type
N/A