fix(core/packet): prevent client crash from malformed packet/message (#2910)

* Update AuctionHouseHandler.cpp

* fix(core/packet): prevent crash from malformed string

src/server/game/Handlers/ChatHandler.cpp

@@ -329,6 +329,11 @@ void WorldSession::HandleMessagechatOpcode(WorldPacket & recvData)
         }
     }
 
+    // prevent crash player
+    if (msg.find("| |Hquest") != std::string::npos) {
+        return;
+    }
+
     sScriptMgr->OnBeforeSendChatMessage(_player, type, lang, msg);
 
     switch (type)