Full Disclosure mailing list archives

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


From: mrx <mrx () propergander org uk>
Date: Wed, 14 Oct 2009 02:31:16 +0100

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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 () propergander 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 () propergander 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 () propergander 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 () gmail com>
http://skypher.com/SkyLined




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