|The RPC Marshalling Engine (aka NDR) in Microsoft Windows 2000 SP4, XP
SP2 and SP3, Server 2003 SP2, Vista Gold, SP1, and SP2, and Server
2008 SP2 does not properly maintain its internal state, which allows
remote attackers to overwrite arbitrary memory locations via a crafted
RPC message that triggers incorrect pointer reading, related to "IDL
interfaces containing a non-conformant varying array" and FC_SMVARRAY,
FC_LGVARRAY, FC_VARIABLE_REPEAT, and FC_VARIABLE_OFFSET, aka "RPC
Marshalling Engine Vulnerability."