[COLUG] Fwd: SERIOUS: Debian/Ubuntu OpenSSL/SSH/VPN Key Vulnerability

Austin Godber godber at uberhip.com
Tue May 13 13:54:19 EDT 2008


>
> A serious vulnerability related to OpenSSL, OpenSSH and OpenVPN has  
> just materialized:
>
> http://www.ubuntu.com/usn/usn-612-1
> http://www.ubuntu.com/usn/usn-612-2
>
> This is particularly nasty because it affects the keys rather than  
> the server or client software itself.  So they keys are vulnerable  
> and after updating they need to be regenerated.  This affects Ubuntu  
> 7.04, 7.10 and 8.04 as well as Debian 4.0.  Even if you created an  
> SSH key on one of these effected systems and copied it to a RedHat  
> or CentOS machine then those machines could be vulnerable as well.
>
> I believe this also applies to SSL certificates generated on those  
> systems.
>
> "All OpenSSH and X.509 keys generated on such systems must be  
> considered untrustworthy, regardless of the system on which they are  
> used, even after the update has been applied."
>
>
> Austin



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