full-disclosure - Re: Memory corruption when loading/unloading Adobe objects through EMBED tag in Firefox

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Date: Wed, 14 Oct 2009 02:31:16 +0100
From: mrx <mrx@...pergander.org.uk>
To: full-disclosure@...ts.grok.org.uk
Subject: Re: Memory corruption when
 loading/unloading	Adobe objects through EMBED tag in Firefox

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I should have made it clear in my first response to this thread that
it is the Foxit Firefox plugin that is vulnerable and not the
standalone reader.

my bad

MrX

Rohit Patnaik wrote:
> Ah, okay.  I do that anyway, because I've had bad experiences with Firefox
> crashing when displaying embedded PDFs in the past.  Sounds like I
should be
> okay until Foxit updates its reader.
>
> Thanks,
> Rohit Patnaik
>
> On Tue, Oct 13, 2009 at 8:15 PM, mrx <mrx@...pergander.org.uk> wrote:
>
>
> Adobe has fixed this issue
>
> http://www.adobe.com/support/security/bulletins/apsb09-15.html
>
> And as this bug relates to Firefox  rendering embedded COM objects
> (PDF) inside a browser window. It should be safe to view PDF's inside
> both Adobe and Foxit readers whilst offline.
>
> MrX
>
> Rohit Patnaik wrote:
> >>> Are there any available workarounds that would mitigate the
> threat?  I
> >>> suppose I could just upload all my PDFs to Google Docs in the
> meantime,
> but
> >>> I'm looking for something that I could use while offline...
> >>>
> >>> --Rohit Patnaik
> >>>
> >>> On Tue, Oct 13, 2009 at 7:35 PM, mrx <mrx@...pergander.org.uk>
> wrote:
> >>>
> >>>
> >>> No, I installed latest updates prior to testing.
> >>> They should be aware of this however considering what appear to be
> >>> striking similarities in the code base between Foxit and Adobe
> >>> readers, at least as far as shared bugs go.
> >>> If not they will be aware of this after they read the email I
> sent them.
> >>>
> >>> MrX
> >>>
> >>> Rohit Patnaik wrote:
> >>>>>> Has Foxit released an update for this?
> >>>>>>
> >>>>>> --Rohit Patnaik
> >>>>>>
> >>>>>> On Tue, Oct 13, 2009 at 6:40 PM, mrx <mrx@...pergander.org.uk>
> >>> wrote:
> >>>>>>
> >>>>>> It would appear that Foxit reader version 3.1.1.0928 is also
> >>>>>> vulnerable to this memory corruption flaw.
> >>>>>> Foxit reader was also vulnerable to the JPEG2000/JBIG2
> decoder bug.
> >>>>>>
> >>>>>> Makes me wonder how much code is common to both Adobes and
> >>> Foxits PDF
> >>>>>> readers
> >>>>>>
> >>>>>> MrX
> >>>>>>
> >>>>>>
> >>>>>> Berend-Jan Wever wrote:
> >>>>>>>>> Adobe bulletin:
> >>>>>>>>> http://www.adobe.com/support/security/bulletins/apsb09-15.html
> >>>>>>>>>
> >>>>>>>>> Short description and repro case:
> >>>>>>>>>
> http://skypher.com/index.php/2009/10/13/memory-corruption-when-loadingunloading-adobe-objects-through-embed-tag-in-firefox/
> >>>>>>>>> Cheers,
> >>>>>>>>>
> >>>>>>>>> SkyLined
> >>>>>>>>> <
> http://skypher.com/index.php/2009/10/13/memory-corruption-when-loadingunloading-adobe-objects-through-embed-tag-in-firefox/
> >>>>>>>>> Berend-Jan Wever <berendjanwever@...il.com>
> >>>>>>>>> http://skypher.com/SkyLined
> >>>>>>>>>
> >>>>>>>>>
> >>>>>>>>>
> >>>
> ----------------------------------------------------------------------
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