Updated thunderbird packages that fix several security bugs are now available for Red Hat Enterprise Linux 5. This update has been rated as having critical security impact by the Red Hat Security Response Team.

- ---------------------------------------------------------------------                   Red Hat Security Advisory

Synopsis:          Critical: thunderbird security update
Advisory ID:       RHSA-2007:0108-02
Advisory URL:      https://access.redhat.com/errata/RHSA-2007:0108.html
Issue date:        2007-03-13
Updated on:        2007-03-14
Product:           Red Hat Enterprise Linux
CVE Names:         CVE-2006-6077 CVE-2007-0008 CVE-2007-0009 
                   CVE-2007-0775 CVE-2007-0777 CVE-2007-0778 
                   CVE-2007-0779 CVE-2007-0780 CVE-2007-0800 
                   CVE-2007-0981 CVE-2007-0995 CVE-2007-0996 
                   CVE-2007-1282 
- ---------------------------------------------------------------------1. Summary:

Updated thunderbird packages that fix several security bugs are now
available for Red Hat Enterprise Linux 5.

This update has been rated as having critical security impact by the Red
Hat Security Response Team.

2. Relevant releases/architectures:

Red Hat Enterprise Linux Desktop (v. 5 client) - i386, x86_64
RHEL Optional Productivity Applications (v. 5 server) - i386, x86_64

3. Problem description:

Mozilla Thunderbird is a standalone mail and newsgroup client.

Several flaws were found in the way Thunderbird processed certain malformed
JavaScript code. A malicious HTML mail message could execute JavaScript
code in such a way that may result in Thunderbird crashing or executing
arbitrary code as the user running Thunderbird. JavaScript support is
disabled by default in Thunderbird; these issues are not exploitable unless
the user has enabled JavaScript. (CVE-2007-0775, CVE-2007-0777)

Several cross-site scripting (XSS) flaws were found in the way Thunderbird
processed certain malformed HTML mail messages. A malicious HTML mail
message could display misleading information which may result in a user
unknowingly divulging sensitive information such as a password.
(CVE-2006-6077, CVE-2007-0995, CVE-2007-0996)

A flaw was found in the way Thunderbird processed text/enhanced and
text/richtext formatted mail message. A specially crafted mail message
could execute arbitrary code with the privileges of the user running
Thunderbird. (CVE-2007-1282)

A flaw was found in the way Thunderbird cached web content on the local
disk. A malicious HTML mail message may be able to inject arbitrary HTML
into a browsing session if the user reloads a targeted site. (CVE-2007-0778)

A flaw was found in the way Thunderbird displayed certain web content. A
malicious HTML mail message could generate content which could overlay user
interface elements such as the hostname and security indicators, tricking a
user into thinking they are visiting a different site. (CVE-2007-0779)

Two flaws were found in the way Thunderbird displayed blocked popup
windows. If a user can be convinced to open a blocked popup, it is possible
to read arbitrary local files, or conduct an XSS attack against the user.
(CVE-2007-0780, CVE-2007-0800)

Two buffer overflow flaws were found in the Network Security Services (NSS)
code for processing the SSLv2 protocol. Connecting to a malicious secure
web server could cause the execution of arbitrary code as the user running
Thunderbird. (CVE-2007-0008, CVE-2007-0009)

A flaw was found in the way Thunderbird handled the "location.hostname"
value during certain browser domain checks. This flaw could allow a
malicious HTML mail message to set domain cookies for an arbitrary site, or
possibly perform an XSS attack. (CVE-2007-0981)

Users of Thunderbird are advised to apply this update, which contains
Thunderbird version 1.5.0.10 that corrects these issues.

4. Solution:

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

This update is available via Red Hat Network.  Details on how to use 
the Red Hat Network to apply this update are available at


5. Bug IDs fixed (http://bugzilla.redhat.com/):

230562 - CVE-2007-0775 Multiple Thunderbird flaws (CVE-2007-0777, CVE-2007-0995, CVE-2007-0996, CVE-2006-6077, CVE-2007-0778, CVE-2007-0779, CVE-2007-0780, CVE-2007-0800, CVE-2007-0008, CVE-2007-0009, CVE-2007-0981, CVE-2007-1282)

6. RPMs required:

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

SRPMS:
99b39f79bb973b4932838ef9629894b6  thunderbird-1.5.0.10-1.el5.src.rpm

i386:
cf89d6e641725346a304198edfed3210  thunderbird-1.5.0.10-1.el5.i386.rpm
490546764a98ac455ec6f85e85509eb3  thunderbird-debuginfo-1.5.0.10-1.el5.i386.rpm

x86_64:
80e7f143b744af822e898f5c304b5807  thunderbird-1.5.0.10-1.el5.x86_64.rpm
e1e735956235db77d2f87e8474c0ddaf  thunderbird-debuginfo-1.5.0.10-1.el5.x86_64.rpm

RHEL Optional Productivity Applications (v. 5 server):

SRPMS:
99b39f79bb973b4932838ef9629894b6  thunderbird-1.5.0.10-1.el5.src.rpm

i386:
cf89d6e641725346a304198edfed3210  thunderbird-1.5.0.10-1.el5.i386.rpm
490546764a98ac455ec6f85e85509eb3  thunderbird-debuginfo-1.5.0.10-1.el5.i386.rpm

x86_64:
80e7f143b744af822e898f5c304b5807  thunderbird-1.5.0.10-1.el5.x86_64.rpm
e1e735956235db77d2f87e8474c0ddaf  thunderbird-debuginfo-1.5.0.10-1.el5.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.cve.org/CVERecord?id=CVE-2006-6077
https://www.cve.org/CVERecord?id=CVE-2007-0008
https://www.cve.org/CVERecord?id=CVE-2007-0009
https://www.cve.org/CVERecord?id=CVE-2007-0775
https://www.cve.org/CVERecord?id=CVE-2007-0777
https://www.cve.org/CVERecord?id=CVE-2007-0778
https://www.cve.org/CVERecord?id=CVE-2007-0779
https://www.cve.org/CVERecord?id=CVE-2007-0780
https://www.cve.org/CVERecord?id=CVE-2007-0800
https://www.cve.org/CVERecord?id=CVE-2007-0981
https://www.cve.org/CVERecord?id=CVE-2007-0995
https://www.cve.org/CVERecord?id=CVE-2007-0996
https://www.cve.org/CVERecord?id=CVE-2007-1282
https://access.redhat.com/security/updates/classification#critical

8. Contact:

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

Copyright 2007 Red Hat, Inc.