Vulnerability identifier: #VU7356
Vulnerability risk: High
Exploitation vector: Network
Vendor: PHP Group
The vulnerability allows a remote attacker to cause DoS condition or potentially execute arbitrary code.
The weakness exists due to stack buffer overflow in PHP INI parsing API 2 when handling malicious input. A remote attacker can send specially crafted data, trigger stack buffer overflow in zend_ini_do_op() that may lead to out-of-bounds write, cause the application to crash or execute arbitrary code with web server privileges.
Successful exploitation of the vulnerability may result in system compromise.
Update to version 7.0.21.
Vulnerable software versions
PHP: 7.0.0 - 7.0.20
Fixed software versions
Can this vulnerability be exploited remotely?
Is there known malware, which exploits this vulnerability?