The Standalone Enqueue Server in SAP Netweaver 7.20, 7.01, and earlier allows remote attackers to cause a denial of service (uncontrolled recursion and crash) via a trace level with a wildcard in the Trace Pattern.
https://exchange.xforce.ibmcloud.com/vulnerabilities/97610
http://www.securityfocus.com/archive/1/533719/100/0/threaded
http://secunia.com/advisories/60950
http://blog.onapsis.com/analyzing-sap-security-notes-october-2014-edition/