Ubuntu 7.10 stack security

[m00n]

Hello everyone !!!
I'm running ubuntu 7.10 and i'm facing some problems with overwriting eip in memory.
I have disabled Virtual Adressspace Randomisation
and im compiling my poccodes with -fno-stack-protector flag in gcc.
Im overwriting ebp address successfully but eip cant be overwritten
here is a sample :
eax 0x0 0
ecx 0x31313131 825307441
edx 0xb7fd40d0 -1208139568
ebx 0xb7fd2ff4 -1208143884
esp 0x3131312d 0x3131312d
ebp 0x31313131 0x31313131
esi 0xb8000ce0 -1207956256
edi 0x0 0
eip 0x804848e 0x804848e

please help me why is that like this, any suggestions solutions?
i have to finish my project about the stack overflows and im a newbie. I dont want to install old redhat releases without stack protection, is it possible to do a stack overflow research on ubuntu?
Thanks in advance!

[m00n]

Anyone? :(

[m00n]

I couldn't find any exec-shield presence on system, correct me if it's there, so which kind of patch or security is preventing eip of being overwritten on Ubuntu 7.10 ???

or just give me a clue were to search about ubuntu stack security or whom to contact. i really need it.
thank you.

[wirelessmonkey]

I can't answer your question, but I do suggest you repost it in the Programming forum, you may find more help there.
\

[m00n]

finally ive got it :)))
(gdb) r aaaaaaaaaaaaaaaaaaa
Starting program: /media/disk/tmp/stack aaaaaaaaaaaaaaaaaaa

Program received signal SIGSEGV, Segmentation fault.
0x61616161 in ?? ()
f**cking gcc security drives me crazy :)
for those who will have the same problem
use gcc v3.3 <= it will work