full-disclosure - Re: Update: [GSEC-TZO-44-2009] One bug to rule them all - Firefox, IE, Safari, Opera, Chrome, Seamonkey, iPhone, iPod, Wii, PS3....

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Message-ID: <1505427795.20090721220057@Zoller.lu>
Date: Tue, 21 Jul 2009 22:00:57 +0200
From: Thierry Zoller <Thierry@...ler.lu>
To: Michal Zalewski <lcamtuf@...edump.cx>
Cc: info@...cl.etat.lu, vuln@...unia.com, cert@...t.org,
	full-disclosure <full-disclosure@...ts.grok.org.uk>,
	bugtraq <bugtraq@...urityfocus.com>, cve@...re.org, nvd@...t.gov
Subject: Re: Update: [GSEC-TZO-44-2009] One bug to rule
	them all - Firefox, IE, Safari, Opera, Chrome, Seamonkey,
	iPhone, iPod, Wii, PS3....

Hi Michal,

Yes,  we  all  know  that.  The  flaw here was not looping on itself a
thousands  of  times,  wow.  It was a DOM implementation flaw. That's
what made it interesting. A border case that was not accounted for.

That's  all,  still  interesting.  I don't see how Javascripts endless
loops are similar at all - sorry.

MZ> There are literally thousands of HTML- and JavaScript-related denial
MZ> of service vectors in modern browsers. If you want a silly, ad hoc
MZ> example I just made up on the spot (and so could any reader of the
MZ> list), try:

MZ> foo = '<marquee>';
MZ> for (i=0;i<7;i++) foo += foo;
MZ> for (i=0;i<10000;i++) document.write(foo);

-- 
http://blog.zoller.lu
Thierry Zoller

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