problem in off by one overflow

From: Breno Pinto <breno_at_secforum.com.br>
Date: 5 Feb 2005 15:20:34 -0000

('binary' encoding is not supported, stored as-is) Hi,

I have problem to exploit an off by one vulnerability. When i overwrite ebp with some data and i´t point to my NOPS, i receive an SIGSEGV message.

SIGSEGV message in 0x90909090 ??

I´m using red hat 7.3 and gcc 2.95.

Anybody knows why 0x90909090 broke my exploitation ?

Thanks

Breno
Received on Feb 07 2005