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Re: [Full-disclosure] Firefox 2.0.0.7 has a very serious calculation bug



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<font face="Arial">This is not only Firefox 2.0.0.7. I still have
2.0.0.5 and it still shows the </font><br>
<pre wrap="">5.1000000000000005. Of course if you understand floating point and 
the level of accuracy needed, I don't see how this could be serious.

And I don't see a way this being exploited to give RCE.
</pre>
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Mukul Dharwadkar<br>
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Jimby Sharp wrote:
<blockquote
 cite="mid:3eab9ed60709280935p6478d821h4cb6cf1583ceabd2@xxxxxxxxxxxxxx"
 type="cite">
  <pre wrap="">How is this serious and is it related to security in any manner? 
If
not, please do not spam. :-(

And go and learn some floating point maths.

On 9/28/07, carl hardwick <a class="moz-txt-link-rfc2396E" 
href="mailto:hardwick.carl@xxxxxxxxx";>&lt;hardwick.carl@xxxxxxxxx&gt;</a> wrote:
  </pre>
  <blockquote type="cite">
    <pre wrap="">There's a flaw in Firefox 2.0.0.7 allows javascript to execute 
wrong
subtractions.

PoC concept here:
<a class="moz-txt-link-freetext" 
href="javascript:5.2-0.1">javascript:5.2-0.1</a>
(copy this code into address bar)

Firefox 2.0.0.7 result: 5.1000000000000005 (WRONG!)
Internet Explorer 7 result: 5.1 (OK)

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