full-disclosure - [ GLSA 200409-27 ] glFTPd: Local buffer overflow vulnerability

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From: koon at gentoo.org (Thierry Carrez)
Subject: [ GLSA 200409-27 ] glFTPd: Local buffer overflow vulnerability

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Gentoo Linux Security Advisory                           GLSA 200409-27
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                                            http://security.gentoo.org/
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  Severity: Normal
     Title: glFTPd: Local buffer overflow vulnerability
      Date: September 21, 2004
      Bugs: #64809
        ID: 200409-27

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Synopsis
========

glFTPd is vulnerable to a local buffer overflow which may allow
arbitrary code execution.

Background
==========

glFTPd is a highly configurable FTP server with many features.

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

    -------------------------------------------------------------------
     Package         /  Vulnerable  /                       Unaffected
    -------------------------------------------------------------------
  1  net-ftp/glftpd      < 1.32-r1                          >= 1.32-r1

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

The glFTPd server is vulnerable to a buffer overflow in the 'dupescan'
program. This vulnerability is due to an unsafe strcpy() call which can
cause the program to crash when a large argument is passed.

Impact
======

A local user with malicious intent can pass a parameter to the dupescan
program that exceeds the size of the buffer, causing it to overflow.
This can lead the program to crash, and potentially allow arbitrary
code execution with the permissions of the user running glFTPd, which
could be the root user.

Workaround
==========

There is no known workaround at this time.

Resolution
==========

All glFTPd users should upgrade to the latest version:

    # emerge sync

    # emerge -pv ">=net-ftp/glftpd-1.32-r1"
    # emerge ">=net-ftp/glftpd-1.32-r1"

References
==========

  [ 1 ] BugTraq Advisory

http://www.securityfocus.com/archive/1/375775/2004-09-17/2004-09-23/0
  [ 2 ] glFTPd Announcement

http://www.glftpd.com/modules.php?op=modload&name=News&file=article&sid=23&mode=thread&order=0&thold=0

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

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

  http://security.gentoo.org/glsa/glsa-200409-27.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@...too.org or alternatively, you may file a bug at
http://bugs.gentoo.org.

License
=======

Copyright 2004 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/1.0

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