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Re: GLSL ES & CSS Filters

From: Dirk Schulze <dschulze@adobe.com>
Date: Tue, 16 Oct 2012 13:38:22 -0700
To: Mark Callow <callow.mark@artspark.co.jp>, "public-fx@w3.org" <public-fx@w3.org>
CC: Max Vujovic <mvujovic@adobe.com>, Dean Jackson <dino@apple.com>, Vincent Hardy <vhardy@adobe.com>, Erik Dahlstrom <ed@opera.com>
Message-ID: <EA074783-498F-43E3-B523-AA80927DA657@adobe.com>

On Oct 15, 2012, at 10:58 PM, Mark Callow <callow.mark@artspark.co.jp> wrote:

> Hi Max,
> On 2012/10/12 7:42, Max Vujovic wrote:
>> I made a functioning proof of concept attack several months ago, before we implemented any of the security restrictions in WebKit. On the malicious page, I was able to query arbitrary URLs, and within 500ms, I could get a "yes" or "no" answer regarding whether the user had visited a URL. I'm fairly confident I could bring the query time per URL down to 40ms or less.
> Thank you for explaining your proof of concept. I would like to see the JS part of it too, if you wouldn't mind sending it to me. I have a few thoughts about mitigation and am trying to see which, if any, cases my ideas would inhibit.
> Is running filters typically pipelined and done in parallel with running the JS, or is everything serial?
> Regards
I know that Dean warned for possible FUD and FUC. But can we still move the security concerns discussion to the mailing list "public-fx@w3.org" <public-fx@w3.org> please? In general we try to avoid shadow discussions that are not public available. The HTML web platform has a variety of security experts that can give you a lot of details.


>     -Mark
> Please note that, due to the integration of management operations following establishment of our new holding company, my e-mail address has changed to callow.mark<@>artspark<.>co<.>jp. I can receive messages at the old address for the rest of this year but please update your address book as soon as possible.
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Received on Tuesday, 16 October 2012 20:39:27 UTC

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