scapy 2.4.0 is affected by: Denial of Service. The impact is: infinite loop, resource consumption and program unresponsive. The component is: _RADIUSAttrPacketListField.getfield(self..). The attack vector is: over the network or in a pcap. both work.
https://github.com/secdev/scapy/pull/1409/files#diff-441eff981e466959968111fc6314fe93L1058