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=====================================================================
                   Red Hat Security Advisory

Synopsis:          Critical: thunderbird security update
Advisory ID:       RHSA-2012:0085-01
Product:           Red Hat Enterprise Linux
Advisory URL:      https://rhn.redhat.com/errata/RHSA-2012-0085.html
Issue date:        2012-02-01
CVE Names:         CVE-2011-3670 CVE-2012-0442 
=====================================================================

1. Summary:

An updated thunderbird package that fixes two security issues is now
available for Red Hat Enterprise Linux 4 and 5.

The Red Hat Security Response Team has rated this update as having critical
security impact. Common Vulnerability Scoring System (CVSS) base scores,
which give detailed severity ratings, are available for each vulnerability
from the CVE links in the References section.

2. Relevant releases/architectures:

RHEL Optional Productivity Applications (v. 5 server) - i386, x86_64
Red Hat Enterprise Linux AS version 4 - i386, ia64, ppc, s390, s390x, x86_64
Red Hat Enterprise Linux Desktop (v. 5 client) - i386, x86_64
Red Hat Enterprise Linux Desktop version 4 - i386, x86_64
Red Hat Enterprise Linux ES version 4 - i386, ia64, x86_64
Red Hat Enterprise Linux WS version 4 - i386, ia64, x86_64

3. Description:

Mozilla Thunderbird is a standalone mail and newsgroup client.

A flaw was found in the processing of malformed content. An HTML mail
message containing malicious content could cause Thunderbird to crash or,
potentially, execute arbitrary code with the privileges of the user running
Thunderbird. (CVE-2012-0442)

The same-origin policy in Thunderbird treated https://example.com and
https://[example.com] as interchangeable. A malicious script could possibly
use this flaw to gain access to sensitive information (such as a client's
IP and user e-mail address, or httpOnly cookies) that may be included in
HTTP proxy error replies, generated in response to invalid URLs using
square brackets. (CVE-2011-3670)

Note: The CVE-2011-3670 issue cannot be exploited by a specially-crafted
HTML mail message as JavaScript is disabled by default for mail messages.
It could be exploited another way in Thunderbird, for example, when viewing
the full remote content of an RSS feed.

All Thunderbird users should upgrade to this updated package, which
resolves these issues. All running instances of Thunderbird must be
restarted for the update to take effect.

4. Solution:

Before applying this update, make sure all previously-released errata
relevant to your system have been applied.

This update is available via the Red Hat Network. Details on how to
use the Red Hat Network to apply this update are available at
https://access.redhat.com/kb/docs/DOC-11259

5. Bugs fixed (https://bugzilla.redhat.com/):

785085 - CVE-2012-0442 Mozilla: memory safety hazards in 10.0/1.9.2.26 (MFSA 2012-01)
785464 - CVE-2011-3670 Mozilla: Same-origin bypass using IPv6-like hostname syntax (MFSA 2012-02)

6. Package List:

Red Hat Enterprise Linux AS version 4:

Source:
ftp://updates.redhat.com/enterprise/4AS/en/os/SRPMS/thunderbird-1.5.0.12-46.el4.src.rpm

i386:
thunderbird-1.5.0.12-46.el4.i386.rpm
thunderbird-debuginfo-1.5.0.12-46.el4.i386.rpm

ia64:
thunderbird-1.5.0.12-46.el4.ia64.rpm
thunderbird-debuginfo-1.5.0.12-46.el4.ia64.rpm

ppc:
thunderbird-1.5.0.12-46.el4.ppc.rpm
thunderbird-debuginfo-1.5.0.12-46.el4.ppc.rpm

s390:
thunderbird-1.5.0.12-46.el4.s390.rpm
thunderbird-debuginfo-1.5.0.12-46.el4.s390.rpm

s390x:
thunderbird-1.5.0.12-46.el4.s390x.rpm
thunderbird-debuginfo-1.5.0.12-46.el4.s390x.rpm

x86_64:
thunderbird-1.5.0.12-46.el4.x86_64.rpm
thunderbird-debuginfo-1.5.0.12-46.el4.x86_64.rpm

Red Hat Enterprise Linux Desktop version 4:

Source:
ftp://updates.redhat.com/enterprise/4Desktop/en/os/SRPMS/thunderbird-1.5.0.12-46.el4.src.rpm

i386:
thunderbird-1.5.0.12-46.el4.i386.rpm
thunderbird-debuginfo-1.5.0.12-46.el4.i386.rpm

x86_64:
thunderbird-1.5.0.12-46.el4.x86_64.rpm
thunderbird-debuginfo-1.5.0.12-46.el4.x86_64.rpm

Red Hat Enterprise Linux ES version 4:

Source:
ftp://updates.redhat.com/enterprise/4ES/en/os/SRPMS/thunderbird-1.5.0.12-46.el4.src.rpm

i386:
thunderbird-1.5.0.12-46.el4.i386.rpm
thunderbird-debuginfo-1.5.0.12-46.el4.i386.rpm

ia64:
thunderbird-1.5.0.12-46.el4.ia64.rpm
thunderbird-debuginfo-1.5.0.12-46.el4.ia64.rpm

x86_64:
thunderbird-1.5.0.12-46.el4.x86_64.rpm
thunderbird-debuginfo-1.5.0.12-46.el4.x86_64.rpm

Red Hat Enterprise Linux WS version 4:

Source:
ftp://updates.redhat.com/enterprise/4WS/en/os/SRPMS/thunderbird-1.5.0.12-46.el4.src.rpm

i386:
thunderbird-1.5.0.12-46.el4.i386.rpm
thunderbird-debuginfo-1.5.0.12-46.el4.i386.rpm

ia64:
thunderbird-1.5.0.12-46.el4.ia64.rpm
thunderbird-debuginfo-1.5.0.12-46.el4.ia64.rpm

x86_64:
thunderbird-1.5.0.12-46.el4.x86_64.rpm
thunderbird-debuginfo-1.5.0.12-46.el4.x86_64.rpm

Red Hat Enterprise Linux Desktop (v. 5 client):

Source:
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/5Client/en/os/SRPMS/thunderbird-2.0.0.24-28.el5_7.src.rpm

i386:
thunderbird-2.0.0.24-28.el5_7.i386.rpm
thunderbird-debuginfo-2.0.0.24-28.el5_7.i386.rpm

x86_64:
thunderbird-2.0.0.24-28.el5_7.x86_64.rpm
thunderbird-debuginfo-2.0.0.24-28.el5_7.x86_64.rpm

RHEL Optional Productivity Applications (v. 5 server):

Source:
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/5Server/en/os/SRPMS/thunderbird-2.0.0.24-28.el5_7.src.rpm

i386:
thunderbird-2.0.0.24-28.el5_7.i386.rpm
thunderbird-debuginfo-2.0.0.24-28.el5_7.i386.rpm

x86_64:
thunderbird-2.0.0.24-28.el5_7.x86_64.rpm
thunderbird-debuginfo-2.0.0.24-28.el5_7.x86_64.rpm

These packages are GPG signed by Red Hat for security.  Our key and 
details on how to verify the signature are available from
https://access.redhat.com/security/team/key/#package

7. References:

https://www.redhat.com/security/data/cve/CVE-2011-3670.html
https://www.redhat.com/security/data/cve/CVE-2012-0442.html
https://access.redhat.com/security/updates/classification/#critical

8. Contact:

The Red Hat security contact is <secalert@redhat.com>.  More contact
details at https://access.redhat.com/security/team/contact/

Copyright 2012 Red Hat, Inc.
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