A new security update has been released for Gentoo Linux - ProFTPD: Local privilege escalation. Here the announcement:

Gentoo Linux Security Advisory GLSA 200702-02
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http://security.gentoo.org/
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Severity: High
Title: ProFTPD: Local privilege escalation
Date: February 13, 2007
Bugs: #158122
ID: 200702-02

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Synopsis
========

A flaw in ProFTPD may allow a local attacker to obtain root privileges.

Background
==========

ProFTPD is a powerful, configurable, and free FTP daemon.

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

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Package / Vulnerable / Unaffected
-------------------------------------------------------------------
1 net-ftp/proftpd < 1.3.1_rc1 >= 1.3.1_rc1

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

A flaw exists in the mod_ctrls module of ProFTPD, normally used to
allow FTP server administrators to configure the daemon at runtime.

Impact
======

An FTP server administrator permitted to interact with mod_ctrls could
potentially compromise the ProFTPD process and execute arbitrary code
with the privileges of the FTP Daemon, which is normally the root user.

Workaround
==========

Disable mod_ctrls, or ensure only trusted users can access this
feature.

Resolution
==========

All ProFTPD users should upgrade to the latest version:

# emerge --sync
# emerge --ask --oneshot --verbose ">=net-ftp/proftpd-1.3.1_rc1"

References
==========

[ 1 ] CVE-2006-6563
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-6563

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

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

http://security.gentoo.org/glsa/glsa-200702-02.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