full-disclosure - Re: Google Chrome Browser Vulnerability

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Date: Wed, 03 Sep 2008 22:50:36 -0400
From: redb0ne@...h.com
To: shyaam@...il.com
Cc: full-disclosure@...ts.grok.org.uk, contact.fingers@...il.com
Subject: Re: Google Chrome Browser Vulnerability

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My judgment is telling me to just ignore this, but I'll entertain
it with one response.

On Wed, 03 Sep 2008 20:04:34 -0400 Shyaam <shyaam@...il.com> wrote:
>This is a healthy discussion. This topic leads to a very good
>question. When
>do we call a bug as a vulnerability and when does an issue really
>turn out
>to be a security issue. When we have memory index out of bound
>error or when
>we have a OS level code having a out of bound memory error or when
>we
>reference an index value that doesn't exist  or in many other
>cases, we do
>reference it as a vulnerability.

Out of bound array accesses can be vulnerabilities because they can
in some cases result in code execution, but not in this case. In
this case, it is just an integer underflow that causes a
conditional to evaluate to true that shouldn't have and a byte or
two of memory being read out of bounds. There is no write, the
memory can't be leaked by an attacker, it is simply a crash.

You can't even begin to compare a kernel denial of service to a
browser crash, killing a browser is a world away from taking down
an entire system. Let's face it, the last thing we need is someone
whoring out attention for every browser crash they come across.
Report it and be done with it, no one cares.
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