Re: [PATCH] fix small DoS on connect() (was Re: BUG: Unusual TCP Connect() results.)

[Herbert Xu <herbert@gondor.apana.org.au>]

On Sun, Jun 12, 2005 at 02:22:47PM +0200, Thomas Graf wrote:
>
> > Look at the first check inside th->ack in tcp_rcv_synsent_state_process.
> 
> Usually a continious flow of ACK+RST is used to prevent a connection
> from being established, it's more reliable because even if you hit the
> ISS+rcv_next window the connection attempt will still be reset.

Sure.  My point is that there are a hundred and one ways to attack
a TCP connection in a manner similar to the original method that
started this thread.  So fixes like this are pretty pointless.

Cheers,
-- 
Visit Openswan at http://www.openswan.org/
Email: Herbert Xu ~{PmV>HI~} <herbert@gondor.apana.org.au>
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