CVE-2017-7520
OpenVPN versions before 2.4.3 and before 2.3.17 are vulnerable to denial-of-service and/or possibly sensitive memory leak triggered by man-in-the-middle attacker.
Date published : 2017-06-27
http://www.securityfocus.com/bid/99230
https://community.openvpn.net/openvpn/wiki/VulnerabilitiesFixedInOpenVPN243