On 04/07/2010 1:10 PM, Török Edwin wrote:
> On 04/07/2010 10:31 PM, Marc Balmer wrote:
> > Am 07.04.10 21:29, schrieb Török Edwin:
> >> On 04/07/2010 09:21 PM, David F. Skoll wrote:
> >>> Hi,
> >>>
> >>> I have a question about the CVD that will "contain a special signature
> >>> which disables all clamd installations older than 0.95."  What exactly
> >>> will this do?
> >>>
> >>> Will old versions always report "No virus"?
> >>>
> >>> Or will they always report "Virus?"
> >>>
> >>> Or will they always report an error?
> >> It will refuse to load the database and print an error message.
> > 
> > even refusing to load existing signatures?
>
> "Will refuse to load" means that daily.cvd will be considered a
> malformed database by ClamAV <= 0.94.2.

That would be the case if it was actually downloaded.  
Will the freshclam <= 0.94.2 actually download the updated signatures?

I think it won't and it will just spit out the warning message about
Upgrading details.

Then there really is no kill-switch, but signature updates simply 
stop happening.  This, along with the many other changes since 0.94.2 
will drastically reduce the effectiveness of ClamAV to detect current 
threats.  That is what you get when you don't update.  

Have fun with the consequences!

I could be wrong about how freshclam works though.

- Mark Pizzolato

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