On Sat, 3 Mar 2012 13:27:19 -0500, Juiceman wrote:
> On Sat, Mar 3, 2012 at 9:22 AM, Jep <j...@jep-z11.xs4all.nl> wrote:
> 
> > There is no way to include a simple counter on a web page in
> > Freenet as far as I can see.
> >
> > It would require some kind of scripting that the content filter
> > would allow I reckon. Is it feasible to implement such? A strict
> > method the filter allows, perhaps, writing to a log file within the
> > freesite container.
> >
> >
> > Another thing, not very important but still. The content filter
> > strips out anything that would make favicons work. For instance,
> > rel="shortcut icon" is not accepted.
> > I can't see how 'local' favicons, icons within the freesite, could
> > be a danger to anonymity, so if that limitation could be taken out
> > of the filter? Allowing just /favicon.ico would do the trick.
> >
> > Is there any documentation on the FN content filter?
> >
> 
> I believe .ICOs are blocked due to a Microsoft vulnerability
> Something about a divide-by-zero overflow.  Ah, here it is.
> http://www.kb.cert.org/vuls/id/290961
> 
> Quote from the page:
> "There is an integer division by zero vulnerability in the way the ICO
> parsing component of GDI+ (Gdiplus.dll) handles ICO files with a
> Heightvalue of zero in the
> InfoHeader section of the ICO file. By introducing a specially
> crafted ICO file to the vulnerable component, a remote attacker could
> trigger an integer division by zero denial-of-service condition.
> 
> 
> I imagine a simple filter could be written that checks that none of
> the dimensions are declared "0"."  Of course, I can say it's simple
> because I am not the one coding it  ;-)  .

Aren't there tonnes of these kinds of bugs... ie. I don't think it's
Freenet's responsibility to manage all the other possibly bugged
packages on one's system. If anyone is using such a bugged version of
Microsoft, they'll get screwed no matter what bandaids Freenet tries to
apply.
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