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Re: Backport for OpenSSH CBC Mode Information Disclosure Vulnerability

by Russ Allbery-2 :: Rate this Message:

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Sam Kuper <sam.kuper@...> writes:
> 2009/6/30 Nico Golde
> <debian-security+ml@...<debian-security%2Bml@...>

>> http://security-tracker.debian.net/tracker/CVE-2008-5161

> Ouch! I agree with the note.

My understanding is that you then terminate the connection you're
attacking as part of the attempt to recover the cleartext unless you
happen to succeed.  I think it's going to be very hard to launch this
attack effectively in a real-world situation.  That's also upstream's
position:

    http://www.openssh.com/txt/cbc.adv

--
Russ Allbery (rra@...)               <http://www.eyrie.org/~eagle/>


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 « Return to Thread: Backport for OpenSSH CBC Mode Information Disclosure Vulnerability