Vulnerability Information
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Vulnerability Title
PHP-FPM memory access in root process leading to privilege escalation
Vulnerability Description
In PHP versions 7.3.x up to and including 7.3.31, 7.4.x below 7.4.25 and 8.0.x below 8.0.12, when running PHP FPM SAPI with main FPM daemon process running as root and child worker processes running as lower-privileged users, it is possible for the child processes to access memory shared with the main process and write to it, modifying it in a way that would cause the root process to conduct invalid memory reads and writes, which can be used to escalate privileges from local unprivileged user to the root user.
CVSS Information
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H
Vulnerability Type
跨界内存写
Vulnerability Title
PHP 缓冲区错误漏洞
Vulnerability Description
PHP是一种在服务器端执行的脚本语言。 PHP 存在缓冲区错误漏洞，攻击者可以通过 FPM 绕过 PHP 的访问限制，以读取或更改数据。
CVSS Information
N/A
Vulnerability Type
N/A