some crashes on using DSA keys

[Miroslav Kratochvil]

> Please see if you can make an unmodified 2.6.5 server crash.

OK, after some amount of effort the server stays impenetrable, so this
doesn't seem as any source of attacks. (I also tried modified client
that pushes the bad DSA keys.)

Still, it would be nice if anyone could confirm this with (possibly)
some more research, as I'm not very skilled at it.

Thanks for responses,
cheers
Mirek Kratochvil