To exploit this vulnerability, an attacker would typically craft a malicious PHP script that triggers the use-after-free condition. This script would then be executed on the server, allowing the attacker to execute arbitrary code, potentially leading to a system compromise.
The Zend Engine is the open-source scripting engine that interprets the PHP programming language. Version 3.4.0 specifically corresponds to the engine used in .
: Use disable_functions in php.ini to block exec , shell_exec , and passthru .
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