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Gentoo Linux Security Advisory                           GLSA 200611-17
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                                            https://security.gentoo.org/
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  Severity: Normal
     Title: fvwm: fvwm-menu-directory fvwm command injection
      Date: November 23, 2006
      Bugs: #155078
        ID: 200611-17

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Synopsis
=======
A flaw in fvwm-menu-directory may permit a local attacker to execute
arbitrary commands with the privileges of another user.

Background
=========
fvwm is a highly configurable virtual window manager for X11 desktops.
fvwm-menu-directory allows fvwm users to browse directories from within
fvwm.

Affected packages
================
    -------------------------------------------------------------------
     Package      /   Vulnerable   /                        Unaffected
    -------------------------------------------------------------------
  1  x11-wm/fvwm      < 2.5.18-r1                         >= 2.5.18-r1

Description
==========
Tavis Ormandy of the Gentoo Linux Security Audit Team discovered that
fvwm-menu-directory does not sufficiently sanitise directory names
prior to generating menus.

Impact
=====
A local attacker who can convince an fvwm-menu-directory user to browse
a directory they control could cause fvwm commands to be executed with
the privileges of the fvwm user. Fvwm commands can be used to execute
arbitrary shell commands.

Workaround
=========
There is no known workaround at this time.

Resolution
=========
All fvwm users should upgrade to the latest version:

    # emerge --sync
    # emerge --ask --oneshot --verbose ">=x11-wm/fvwm-2.5.18-r1"

References
=========
  [ 1 ] CVE-2006-5969
        http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-5969

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

  https://security.gentoo.org/glsa/200611-17

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
https://bugs.gentoo.org/.

License
======
Copyright 2006 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.

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