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Date: Tue, 21 Sep 2004 02:46:02 +0200
From: "Thierry Carrez" <koon@...too.org>
To: <huber@...t.webmailer.de>
Cc: <bugtraq@...urityfocus.com>, <full-disclosure@...ts.netsys.com>,
   <security-alerts@...uxsecurity.com>
Subject: [sb] [ GLSA 200409-26 ] Mozilla, Firefox, Thunderbird, Epiphany: New releases fix vulnerabilities


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Gentoo Linux Security Advisory                           GLSA 200409-26
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                                            http://security.gentoo.org/
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  Severity: Normal
     Title: Mozilla, Firefox, Thunderbird, Epiphany: New releases fix
            vulnerabilities
      Date: September 20, 2004
      Bugs: #63996
        ID: 200409-26

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Synopsis
========

New releases of Mozilla, Epiphany, Mozilla Thunderbird, and Mozilla
Firefox fix several vulnerabilities, including the remote execution of
arbitrary code.

Background
==========

Mozilla is a popular web browser that includes a mail and newsreader.
Epiphany is a web browser that uses Gecko, the Mozilla rendering
engine. Mozilla Firefox and Mozilla Thunderbird are respectively the
next-generation browser and mail client from the Mozilla project.

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

    -------------------------------------------------------------------
     Package                  /  Vulnerable  /              Unaffected
    -------------------------------------------------------------------
  1  mozilla                       < 1.7.3                    >= 1.7.3
  2  mozilla-firefox              < 1.0_pre                 >= 1.0_pre
  3  mozilla-thunderbird            < 0.8                       >= 0.8
  4  mozilla-bin                   < 1.7.3                    >= 1.7.3
  5  mozilla-firefox-bin          < 1.0_pre                 >= 1.0_pre
  6  mozilla-thunderbird-bin        < 0.8                       >= 0.8
  7  epiphany                    < 1.2.9-r1                >= 1.2.9-r1
    -------------------------------------------------------------------
     7 affected packages on all of their supported architectures.
    -------------------------------------------------------------------

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

Mozilla-based products are vulnerable to multiple security issues.
Firstly routines handling the display of BMP images and VCards contain
an integer overflow and a stack buffer overrun. Specific pages with
long links, when sent using the "Send Page" function, and links with
non-ASCII hostnames could both cause heap buffer overruns.

Several issues were found and fixed in JavaScript rights handling:
untrusted script code could read and write to the clipboard, signed
scripts could build confusing grant privileges dialog boxes, and when
dragged onto trusted frames or windows, JavaScript links could access
information and rights of the target frame or window. Finally,
Mozilla-based mail clients (Mozilla and Mozilla Thunderbird) are
vulnerable to a heap overflow caused by invalid POP3 mail server
responses.

Impact
======

An attacker might be able to run arbitrary code with the rights of the
user running the software by enticing the user to perform one of the
following actions: view a specially-crafted BMP image or VCard, use the
"Send Page" function on a malicious page, follow links with malicious
hostnames, drag multiple JavaScript links in a row to another window,
or connect to an untrusted POP3 mail server. An attacker could also use
a malicious page with JavaScript to disclose clipboard contents or
abuse previously-given privileges to request XPI installation
privileges through a confusing dialog.

Workaround
==========

There is no known workaround covering all vulnerabilities.

Resolution
==========

All users should upgrade to the latest stable version:

    # emerge sync

    # emerge -pv your-version
    # emerge your-version

References
==========

  [ 1 ] Mozilla Security Advisory

http://www.mozilla.org/projects/security/known-vulnerabilities.html#mozilla1.7.3
  [ 2 ] US-CERT Security Alert TA04-261A
        http://www.us-cert.gov/cas/techalerts/TA04-261A.html

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

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

  http://security.gentoo.org/glsa/glsa-200409-26.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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