Network: Add back error handling from old code for packet header in m…

…angosd
cmangos · Feb 18, 2024 · d934cb6 · d934cb6 · killerwife · Feb 18, 2024
1 parent ac1053e
commit d934cb6
Showing 1 changed file with 6 additions and 0 deletions.
diff --git a/src/game/Server/WorldSocket.cpp b/src/game/Server/WorldSocket.cpp
@@ -178,6 +178,12 @@ bool WorldSocket::ProcessIncomingData()
         EndianConvertReverse(header->size);
         EndianConvert(header->cmd);
 
+        if ((header->size < 4) || (header->size > 0x2800) || (header->cmd >= NUM_MSG_TYPES))
+        {
+            sLog.outError("WorldSocket::ProcessIncomingData: client sent malformed packet size = %u , cmd = %u", header->size, header->cmd);
+            return;
+        }
+
         const Opcodes opcode = static_cast<Opcodes>(header->cmd);
 
         size_t packetSize = header->size - 4;