A new security update has been released for Gentoo Linux - Tomboy: User-assisted execution of arbitrary code. Here the announcement:

Gentoo Linux Security Advisory GLSA 200711-12
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http://security.gentoo.org/
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Severity: Normal
Title: Tomboy: User-assisted execution of arbitrary code
Date: November 08, 2007
Bugs: #189249
ID: 200711-12

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Synopsis
========

Tomboy doesn't properly handle environment variables, potentially
allowing a local attacker to execute arbitrary code.

Background
==========

Tomboy is a GTK-based desktop note-taking application written in C# and
the Mono C#.

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

-------------------------------------------------------------------
Package / Vulnerable / Unaffected
-------------------------------------------------------------------
1 app-misc/tomboy < 0.8.1-r1 >= 0.8.1-r1

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

Jan Oravec reported that the "/usr/bin/tomboy" script sets the
"LD_LIBRARY_PATH" environment variable incorrectly, which might result
in the current working directory (.) to be included when searching for
dynamically linked libraries of the Mono Runtime application.

Impact
======

A local attacker could entice a user into running Tomboy in a directory
containing a specially crafted library file to execute arbitrary code
with the privileges of the user running Tomboy.

Workaround
==========

Do not run Tomboy from an untrusted working directory.

Resolution
==========

All Tomboy users should upgrade to the latest version:

# emerge --sync
# emerge --ask --oneshot --verbose ">=app-misc/tomboy-0.8.1-r1"

References
==========

[ 1 ] CVE-2005-4790
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2005-4790

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

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

http://security.gentoo.org/glsa/glsa-200711-12.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