From 82f7b337b2dafd16506033cdbfecc979bc6f7119 Mon Sep 17 00:00:00 2001 From: Shocker Date: Sun, 10 Feb 2013 20:20:36 +0200 Subject: Core/Opcodes: Prevent invalid memory access with custom opcodes --- src/server/game/Server/WorldSocket.cpp | 4 ++++ 1 file changed, 4 insertions(+) (limited to 'src/server') diff --git a/src/server/game/Server/WorldSocket.cpp b/src/server/game/Server/WorldSocket.cpp index 9e3c47caea2..24406cdbdab 100644 --- a/src/server/game/Server/WorldSocket.cpp +++ b/src/server/game/Server/WorldSocket.cpp @@ -733,6 +733,10 @@ int WorldSocket::ProcessIncoming(WorldPacket* new_pct) return -1; } + // prevent invalid memory access/crash with custom opcodes + if (opcode >= NUM_OPCODE_HANDLERS) + return 0; + OpcodeHandler const* handler = opcodeTable[opcode]; if (!handler || handler->Status == STATUS_UNHANDLED) { -- cgit v1.2.3