[ GLSA 200907-14 ] Rasterbar libtorrent: Directory traversal

[Robert Buchholz <rbu () gentoo org>]

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Gentoo Linux Security Advisory                           GLSA 200907-14
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
                                            http://security.gentoo.org/
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

  Severity: Normal
     Title: Rasterbar libtorrent: Directory traversal
      Date: July 17, 2009
      Bugs: #273156, #273961
        ID: 200907-14

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

Synopsis
========

A directory traversal vulnerability in Rasterbar libtorrent might allow
a remote attacker to overwrite arbitrary files.

Background
==========

Rasterbar libtorrent is a C++ BitTorrent implementation focusing on
efficiency and scalability. Deluge is a BitTorrent client that ships a
copy of libtorrent.

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

    -------------------------------------------------------------------
     Package                 /  Vulnerable  /               Unaffected
    -------------------------------------------------------------------
  1  net-libs/rb_libtorrent      < 0.13-r1                  >= 0.13-r1
  2  net-p2p/deluge               < 1.1.9                     >= 1.1.9
    -------------------------------------------------------------------
     2 affected packages on all of their supported architectures.
    -------------------------------------------------------------------

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

census reported a directory traversal vulnerability in
src/torrent_info.cpp that can be triggered via .torrent files.

Impact
======

A remote attacker could entice a user or automated system using
Rasterbar libtorrent to load a specially crafted BitTorrent file to
create or overwrite arbitrary files using dot dot sequences in
filenames.

Workaround
==========

There is no known workaround at this time.

Resolution
==========

All Rasterbar libtorrent users should upgrade to the latest version:

    # emerge --sync
    # emerge --ask --oneshot -v ">=net-libs/rb_libtorrent-0.13-r1"

All Deluge users should upgrade to the latest version:

    # emerge --sync
    # emerge --ask --oneshot --verbose ">=net-p2p/deluge-1.1.9"

References
==========

  [ 1 ] CVE-2009-1760
        http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2009-1760

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

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

  http://security.gentoo.org/glsa/glsa-200907-14.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
https://bugs.gentoo.org.

License
=======

Copyright 2009 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

Attachment: signature.asc
Description: This is a digitally signed message part.