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UNIRAS Brief - 468/05 - Gentoo - Two Security Advisories



 
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   UNIRAS (UK Govt CERT) Briefing Notice - 468/05 dated 22.06.05  Time: 15:55
  UNIRAS is part of NISCC (National Infrastructure Security Co-ordination Centre)
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  UNIRAS material is also available from its website at www.uniras.gov.uk and
         Information about NISCC is available from www.niscc.gov.uk
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Title
=====
Gentoo - Two Security Advisories:
     1.  Tor: Information disclosure              [GLSA 200506-18]
     2.  squirrelmail: Several XSS vulnerabilities [GLSA 200506-19]


Detail
====== 

Security advisory summaries:

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

     2.  Squirrelmail is vulnerable to several cross-site scripting
         vulnerabilities which could lead to a compromise of webmail accounts.


Security advisory content follows:


1.


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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@xxxxxxxxxx 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



2.



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Gentoo Linux Security Advisory                           GLSA 200506-19
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                                            http://security.gentoo.org/
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  Severity: Low
     Title: SquirrelMail: Several XSS vulnerabilities
      Date: June 21, 2005
      Bugs: #95937
        ID: 200506-19

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Synopsis
========

Squirrelmail is vulnerable to several cross-site scripting
vulnerabilities which could lead to a compromise of webmail accounts.

Background
==========

SquirrelMail is a webmail package written in PHP. It supports IMAP and
SMTP protocols.

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

    -------------------------------------------------------------------
     Package                   /  Vulnerable  /             Unaffected
    -------------------------------------------------------------------
  1  mail-client/squirrelmail       < 1.4.4                   >= 1.4.4
                                                               < 1.4.0

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

SquirrelMail is vulnerable to several cross-site scripting issues, most
reported by Martijn Brinkers.

Impact
======

By enticing a user to read a specially-crafted e-mail or using a
manipulated URL, an attacker can execute arbitrary scripts running in
the context of the victim's browser. This could lead to a compromise of
the user's webmail account, cookie theft, etc.

Workaround
==========

There is no known workaround at this time.

Resolution
==========

All SquirrelMail users should upgrade to the latest version:

    # emerge --sync
    # emerge --ask --oneshot --verbose ">=mail-client/squirrelmail-1.4.4"

Note: Users with the vhosts USE flag set should manually use
webapp-config to finalize the update.

References
==========

  [ 1 ] SquirrelMail Advisory
        http://www.squirrelmail.org/security/issue/2005-06-15
  [ 2 ] CAN-2005-1769
        http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2005-1769

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

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

  http://security.gentoo.org/glsa/glsa-200506-19.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@xxxxxxxxxx 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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For additional information or assistance, please contact the HELP Desk by 
telephone or Not Protectively Marked information may be sent via 
EMail to: uniras@xxxxxxxxxxxx

Office Hours:
Mon - Fri: 08:30 - 17:00 Hrs
Tel: +44 (0) 870 487 0748 Ext 4511
Fax: +44 (0) 870 487 0749

Outside of Office Hours:
On Call Duty Officer:
Tel: +44 (0) 870 487 0748 and follow the prompts

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UNIRAS wishes to acknowledge the contributions of Gentoo for the information 
contained in this Briefing. 
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This Briefing contains the information released by the original author. Some 
of the information may have changed since it was released. If the vulnerability 
affects you, it may be prudent to retrieve the advisory from the canonical site 
to ensure that you receive the most current information concerning that problem.

Reference to any specific commercial product, process, or service by trade 
name, trademark manufacturer, or otherwise, does not constitute or imply 
its endorsement, recommendation, or favouring by UNIRAS or NISCC.  The views 
and opinions of authors expressed within this notice shall not be used for 
advertising or product endorsement purposes.

Neither UNIRAS or NISCC shall also accept responsibility for any errors 
or omissions contained within this briefing notice. In particular, they shall 
not be liable for any loss or damage whatsoever, arising from or in connection 
with the usage of information contained within this notice.

UNIRAS is a member of the Forum of Incident Response and Security Teams (FIRST) 
and has contacts with other international Incident Response Teams (IRTs) in 
order to foster cooperation and coordination in incident prevention, to prompt 
rapid reaction to incidents, and to promote information sharing amongst its 
members and the community at large. 
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<End of UNIRAS Briefing>

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