The SYNCHROPHASOR dissector (packet-synphasor.c) parses CFG3 configuration frames. The function config_3_frame_fast() reads the num_ph (number of phasors) field from the packet without any upper bound check, then allocates 17.8 MB of memory using wmem_file_scope() per frame. This memory is only freed when the capture file is closed, so sending multiple frames causes memory exhaustion and process termination.
A single 78-byte UDP packet to port 4713 triggers a 17.8 MB allocation. 1000 frames (~200 KB on disk) cause ~17 GB of memory consumption, resulting in OOM kill or g_malloc abort.