CVE-2009-4500
The process_trap function in trapper/trapper.c in Zabbix Server before 1.6.6 allows remote attackers to cause a denial of service (crash) via a crafted request with data that lacks an expected : (colon) separator, which triggers a NULL pointer dereference.
Date published : 2009-12-31
http://www.securityfocus.com/archive/1/508436/30/60/threaded