On Fri, 2002-10-25 at 10:00, Florian Weimer wrote:
> This patch prevents SYN+RST and SYN+FIN segments which arrive in the
> LISTEN state from initiating a three-way handshake.
>
> I'm not sure if it is correct, but it's better than nothing (so far, I
> haven't seen any patch for this issue).
I would disagree with the th->fin check. We don't want to break stuff
that is doing T/TCP initially. (Yes the advice people gave is badly
wrong - SYN|ACK|FIN is legal for example and some stacks generate it)
The th->rst is clearly correct however
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This archive was generated by hypermail 2b29 : Thu Oct 31 2002 - 22:00:27 EST