raydium_network_netcall_exec function in network.c in Raydium SVN revision 312 and earlier allows remote attackers to cause a denial of service (application crash) via a packet of type 0xFF, which causes a null dereference.
https://exchange.xforce.ibmcloud.com/vulnerabilities/26515
http://www.vupen.com/english/advisories/2006/1808
http://www.securityfocus.com/bid/17986
http://www.securityfocus.com/archive/1/433930/100/0/threaded
http://securityreason.com/securityalert/900