ZABBIX 'process_trap()' NULL Pointer Dereference Denial Of Service Vulnerability

Summary
ZABBIX is prone to a denial-of-service vulnerability because of a NULL-pointer dereference. Successful exploits may allow remote attackers to cause denial-of- service conditions. Given the nature of this issue, attackers may also be able to run arbitrary code, but this has not been confirmed. Versions prior to ZABBIX 1.6.6 are vulnerable.
Solution
Updates are available. Please see the references for details.
References