A heap-based buffer over-read exists in the function fast_edit_packet() in the file send_packets.c of Tcpreplay v4.3.0 beta1. This can lead to Denial of Service (DoS) and potentially Information Exposure when the application attempts to process a crafted pcap file.
https://github.com/appneta/tcpreplay/issues/485
https://github.com/SegfaultMasters/covering360/blob/master/tcpreplay