Re: [patch] exec-shield-2.6.0-test6-G3

Ingo Molnar
2003-10-11T08:13:36Z

On Thu, 9 Oct 2003, Boszormenyi Zoltan wrote:

> I tried exec-shield-2.6.0-test6-G3 on 2.6.0-test7 patched with
> http://www.kernel.org/pub/linux/kernel/v2.6/testing/cset/cset-20031009_0504.txt.gz
> (up to cset-1.1320), it patched with some fuzz and offset differences.

i've uploaded a clean patch against 2.6.0-test7:

redhat.com/~mingo/exec-shield/exec-shield-2.6.0-test7-G3

> I got the following exploit differences with libsafe and paxtest:
>
> libsafe-2.0-16:
> [zozo@catv-50624ad9 exploits]$ ./t6
> This program tries to use scanf() to overflow the buffer.
> If you get a /bin/sh prompt, then the exploit has worked.
> Press any key to continue...
> If you see this statement, it means that the buffer
> overflow never occurred.
>
> Should I worry about it?

i wouldnt worry about this too much - i think the exploit preparation code
itself crashes sometimes (maybe due to randomization effects). I've seen
it previously too.

Ingo