Cisco Talos recently discovered multiple vulnerabilities in the PHP library. One of these vulnerabilities also affects OpenEMR, a medical practice management software written in PHP. An adversary could exploit these vulnerabilities by sending the target machine a specially crafted, malicious request or URL. The vulnerabilities are resolved and an update is available for affected customers. The following SNORT rules will detect exploitation attempts. The following rules may be released at a future date and current rules are subject to change pending additional vulnerability information.”]
Source: https://blog.talosintelligence.com/2021/01/vuln-spotlight-php-gacl-openemr.html