bugtraq - [ GLSA 200709-13 ] rsync: Two buffer overflows

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Message-ID: <20070920201740.GA6206@falco.falcal.net>
Date: Thu, 20 Sep 2007 22:17:40 +0200
From: Raphael Marichez <falco@...too.org>
To: gentoo-announce@...too.org
Cc: bugtraq@...urityfocus.com, full-disclosure@...ts.grok.org.uk,
	security-alerts@...uxsecurity.com
Subject: [ GLSA 200709-13 ] rsync: Two buffer overflows

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Gentoo Linux Security Advisory                           GLSA 200709-13
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                                            http://security.gentoo.org/
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  Severity: Normal
     Title: rsync: Two buffer overflows
      Date: September 20, 2007
      Bugs: #189132
        ID: 200709-13

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Synopsis
========

Two user-assisted buffer overflow vulnerabilities have been discovered
in rsync.

Background
==========

rsync is a file transfer program to keep remote directories
synchronized.

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

    -------------------------------------------------------------------
     Package         /  Vulnerable  /                       Unaffected
    -------------------------------------------------------------------
  1  net-misc/rsync     < 2.6.9-r3                         >= 2.6.9-r3

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

Sebastian Krahmer from the SUSE Security Team discovered two off-by-one
errors in the function "f_name()" in file sender.c when processing
overly long directory names.

Impact
======

A remote attacker could entice a user to synchronize a repository
containing specially crafted directories, 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 rsync users should upgrade to the latest version:

    # emerge --sync
    # emerge --ask --oneshot --verbose ">=net-misc/rsync-2.6.9-r3"

References
==========

  [ 1 ] CVE-2007-4091
        http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-4091

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

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

  http://security.gentoo.org/glsa/glsa-200709-13.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 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

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