A new security update has been released for Gentoo Linux - Ruby-GNOME2: Format string error. Here the announcement:

Gentoo Linux Security Advisory GLSA 200712-09
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
http://security.gentoo.org/
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

Severity: Normal
Title: Ruby-GNOME2: Format string error
Date: December 09, 2007
Bugs: #200623
ID: 200712-09

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

Synopsis
========

A format string error has been discovered in Ruby-GNOME2, possibly
leading to the execution of arbitrary code.

Background
==========

Ruby-GNOME2 is a set of bindings for using GTK+ within the Ruby
programming language.

Affected packages
=================

-------------------------------------------------------------------
Package / Vulnerable / Unaffected
-------------------------------------------------------------------
1 dev-ruby/ruby-gtk2 < 0.16.0-r2 >= 0.16.0-r2

Description
===========

Chris Rohlf discovered that the "Gtk::MessageDialog.new()" method in
the file gtk/src/rbgtkmessagedialog.c does not properly sanitize the
"message" parameter before passing it to the gtk_message_dialog_new()
function.

Impact
======

A remote attacker could send a specially crafted string to an
application using Ruby-GNOME2, possibly leading to the execution of
arbitrary code with the privileges of the user running the application.

Workaround
==========

There is no known workaround at this time.

Resolution
==========

All Ruby-GNOME2 users should upgrade to the latest version:

# emerge --sync
# emerge --ask --oneshot --verbose ">=dev-ruby/ruby-gtk2-0.16.0-r2"

References
==========

[ 1 ] CVE-2007-6183
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-6183

Availability
============

This GLSA and any updates to it are available for viewing at
the Gentoo Security Website:

http://security.gentoo.org/glsa/glsa-200712-09.xml

Concerns?
=========

Security is a primary focus of Gentoo Linux and ensuring the
confidentiality and security of our users machines is of utmost
importance to us. Any security concerns should be addressed to
security@gentoo.org or alternatively, you may file a bug at
http://bugs.gentoo.org.

License
=======

Copyright 2007 Gentoo Foundation, Inc; referenced text
belongs to its owner(s).

The contents of this document are licensed under the
Creative Commons - Attribution / Share Alike license.

http://creativecommons.org/licenses/by-sa/2.5