ID:7360 - Exploit for Use-after-free in PHP - CVE-2021-21708

 
Main Vulnerability Database Exploits ID:7360 - Exploit for Use-after-free in PHP - CVE-2021-21708

ID:7360 - Exploit for Use-after-free in PHP - CVE-2021-21708

Published: February 18, 2022


Vulnerability identifier: #VU60707
Vulnerability risk: Medium
CVE-ID: CVE-2021-21708
CWE-ID: CWE-416
Exploitation vector: Remote access
Vulnerable software:
PHP

Link to public exploit:


Vulnerability description

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to a use-after-free error within the "php_filter_float()" function. A remote attacker can pass specially crafted input to the application that uses the affected PHP function, trigger a use-after-free error and crash the php-fpm process.


Remediation

Install updates from vendor's website.