CVE-2018-2423
SAP Internet Graphics Server (IGS), 7.20, 7.20EXT, 7.45, 7.49, 7.53, HTTP and RFC listener allows an attacker to prevent legitimate users from accessing a service, either by crashing or flooding the service.
Date published : 2018-05-09
http://www.securityfocus.com/bid/104109
https://blogs.sap.com/2018/05/08/sap-security-patch-day-may-2018/