The SMB Mailslot parsing functionality in PAM in multiple ISS products with XPU (24.39/1.78/epj/x.x.x.1780), including Proventia A, G, M, Server, and Desktop, BlackICE PC and Server Protection 3.6, and RealSecure 7.0, allows remote attackers to cause a denial of service (infinite loop) via a crafted SMB packet that is not properly handled by the SMB_Mailslot_Heap_Overflow decode.
The default configuration of BlackICE Agent 3.1.eal and 3.1.ebh has a high tcp.maxconnections setting, which could allow remote attackers to cause a denial of service (memory consumption) via a large number of connections to the BlackICE system that consumes more resources than intended by the user.
ISS RealSecure 3.2.1 and 3.2.2 allows remote attackers to cause a denial of service via a flood of fragmented packets with the SYN flag set.
Memory leak in RealSecure Event Collector 6.5 allows attackers to cause a denial of service (memory consumption and crash).