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Date: Wed, 27 Jul 2011 16:57:32 -0400 (EDT)
From: "Steven M. Christey" <>
cc: KDE Security Team <>,,
        Tim Brown <>
Subject: Re: CVE: Input validation failure affecting multiple
 KDE applications, as well as many other Qt-based applications

On Mon, 25 Jul 2011, Jeff Mitchell wrote:

> The Arora and Rekonq web browsers are also vulnerable to the same attack
> vector, and other Qt-based programs may be as well. We're working with
> the Qt team to help enhance their documentation to warn developers to
> take care sanitizing their inputs, but it's not actually a Qt flaw. So
> we're a bit unsure how to proceed here.

This sounds like a limitation of the Qt API, which can be avoided by 
programmers who are aware of the limitation.  Kind of like how strcpy() 
can be subject to buffer overflows, *if* the programmer isn't careful. 
Also happened with confusing return values from certain OpenSSL API 
functions a couple years ago.  (The PHP_SELF example is similar.)  So, 
this should probably get separate CVEs for each application/library that 
misuses the relevant function(s).

If Qt itself contains misuse of its own functions - which happens 
sometimes (CVE-2008-5077 for OpenSSL) - then Qt might need its own CVE, 

- Steve

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