full-disclosure - Re: Foxit Reader suffers from Division By Zero

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Message-ID: <CACqxkW+Ykvn80s2w_eTE+mpXxeVUtKeg_eW77s9Mq0xCBPuZBQ@mail.gmail.com>
Date: Sun, 30 Sep 2012 02:35:22 +0100
From: Nick Boyce <nick.boyce@...il.com>
To: full-disclosure <full-disclosure@...ts.grok.org.uk>
Subject: Re: Foxit Reader suffers from Division By Zero

On Sat, Sep 29, 2012 at 8:01 AM, kaveh ghaemmaghami
<kavehghaemmaghami@...glemail.com> wrote:

> Title            :  Foxit Reader suffers from Division By Zero
> Version          :  5.4.3.0920
[...]
> division by zero vulnerability during the handling of the pdf files.
> that will trigger a denial of service condition
[...]
> Proof of concept .pdf included.

Confirmed with V5 Foxit Reader 5.4.3.0920 on WinXP Pro SP3 (though
with a slightly different offset - 0015eb8c ... ASLR ?).

Interestingly, NOT confirmed for Foxit Reader 4.3.1.0323 (the last
version of the V4 Foxit Reader, which is the last version many people
are comfortable with); with this version I get a dialog box stating
"format error: not a PDF or corrupted", and no crash.  This is also on
XP Pro SP3.  Another reason to be disappointed with Foxit Reader V5 :)

Cheers
Nick Boyce
-- 
You are in a maze of twisty little relative jumps, all alike.

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