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Date: Fri, 15 Apr 2011 16:50:02 +0200
From: Tomas Hoger <>
Subject: Re: CVE request for Thunar (format string errors)

On Fri, 15 Apr 2011 15:54:08 +0200 Yves-Alexis Perez wrote:

> The first one is
> (bug at  fixed in
> Thunar 1.2.1) and triggers when creating file from templates and
> calling it with a format string.

Does this have real attack vector where trust boundary is crossed?
This sounds like a bug.

> The second is
> and is triggered when copy/pasting a file named from a format string.
> There's no released version including the fix right now.

This would probably qualify.

> As a side note, I do use -Wformat -Wformat-security
> -Werror=format-security (thanks to hardening-includes) for my Debian
> builds, but as those function are wrappers of wrappers of wrappers to
> printf() and stuff like that, -Wformat-security won't help. Is there a
> way to work around that?

Fortify source should block code execution even in this case, I'd

Tomas Hoger / Red Hat Security Response Team

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