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                                  CERT-Renater

                       Note d'Information No. 2005/VULN401
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DATE                      : 23/06/2005

HARDWARE PLATFORM(S)      : /

OPERATING SYSTEM(S)       : Systems running Tor.

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Gentoo Linux Security Advisory                           GLSA 200506-18
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                                             http://security.gentoo.org/
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   Severity: Low
      Title: Tor: Information disclosure
       Date: June 21, 2005
       Bugs: #96320
         ID: 200506-18

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Synopsis
========

A flaw in Tor may allow the disclosure of arbitrary memory portions.

Background
==========

Tor is an implementation of second generation Onion Routing, a
connection-oriented anonymizing communication service.

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

     -------------------------------------------------------------------
      Package       /  Vulnerable  /                         Unaffected
     -------------------------------------------------------------------
   1  net-misc/tor     < 0.0.9.10                           >= 0.0.9.10

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

A bug in Tor allows attackers to view arbitrary memory contents from an
exit server's process space.

Impact
======

A remote attacker could exploit the memory disclosure to gain sensitive
information and possibly even private keys.

Workaround
==========

There is no known workaround at this time.

Resolution
==========

All Tor users should upgrade to the latest available version:

     # emerge --sync
     # emerge --ask --oneshot --verbose ">=net-misc/tor-0.0.9.10"

References
==========

   [ 1 ] Tor Security Announcement
         http://archives.seul.org/or/announce/Jun-2005/msg00001.html

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

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

   http://security.gentoo.org/glsa/glsa-200506-18.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 2005 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/2.0

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