Removed infinite loop in parser.rdp.virtual_channel.dynamic_channel.

Author: excitoon

pyrdp/parser/rdp/virtual_channel/dynamic_channel.py

@@ -33,6 +33,8 @@ def doParse(self, data: bytes) -> PDU:
             channelName = ""
             char = stream.read(1).decode()
             while char != "\x00":
+                if len(char) == 0:
+                    return ValueError("Channel name is not null-terminated")
                 channelName += char
                 char = stream.read(1).decode()
             return CreateRequestPDU(cbid, sp, channelId, channelName)