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                   Red Hat Security Advisory

Synopsis:          Critical: thunderbird security update
Advisory ID:       RHSA-2005:337-01
Advisory URL:      https://rhn.redhat.com/errata/RHSA-2005-337.html
Issue date:        2005-03-23
Updated on:        2005-03-23
Product:           Red Hat Enterprise Linux
CVE Names:         CAN-2005-0399 CAN-2005-0255
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1. Summary:

Updated thunderbird packages that fix various bugs are now available.

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 AS version 4 - i386, ia64, ppc, s390, s390x, 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. Problem description:

Mozilla Thunderbird is a standalone mail and newsgroup client.

A buffer overflow bug was found in the way Thunderbird processes GIF
images. It is possible for an attacker to create a specially crafted GIF
image, which when viewed by a victim will execute arbitrary code as the
victim. The Common Vulnerabilities and Exposures project (cve.mitre.org)
has assigned the name CAN-2005-0399 to this issue.

A bug was found in the Thunderbird string handling functions. If a
malicious website is able to exhaust a system's memory, it becomes possible
to execute arbitrary code. The Common Vulnerabilities and Exposures project
(cve.mitre.org) has assigned the name CAN-2005-0255 to this issue.

Users of Thunderbird are advised to upgrade to this updated package which
contains Thunderbird version 1.0.2 and is not vulnerable to these issues.

4. Solution:

Before applying this update, make sure that all previously-released
errata relevant to your system have been applied.  Use Red Hat
Network to download and update your packages.  To launch the Red Hat
Update Agent, use the following command:

    up2date

For information on how to install packages manually, refer to the
following Web page for the System Administration or Customization
guide specific to your system:

    http://www.redhat.com/docs/manuals/enterprise/

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

149883 - CAN-2005-0255 Memory overwrite in string library
150874 - 

6. RPMs required:

Red Hat Enterprise Linux AS version 4:

SRPMS:
ftp://updates.redhat.com/enterprise/4AS/en/os/SRPMS/thunderbird-1.0.2-1.4.1.src.rpm
4fd64e091c9b224ac6b1ec2e2389b3b8  thunderbird-1.0.2-1.4.1.src.rpm

i386:
6230f646a97610ffcf4a8470111fe784  thunderbird-1.0.2-1.4.1.i386.rpm

ia64:
88982e22b690d581824e061b56993d9d  thunderbird-1.0.2-1.4.1.ia64.rpm

ppc:
2ed876ea1f24b2d93c7957a4b7aa1e62  thunderbird-1.0.2-1.4.1.ppc.rpm

s390:
eeade6a2ae621d08642e9e1caed4ec98  thunderbird-1.0.2-1.4.1.s390.rpm

s390x:
61b8c77a40e9004ab401b938f59a96fd  thunderbird-1.0.2-1.4.1.s390x.rpm

x86_64:
51e710c26670142b1b973fa96624b1fb  thunderbird-1.0.2-1.4.1.x86_64.rpm

Red Hat Enterprise Linux Desktop version 4:

SRPMS:
ftp://updates.redhat.com/enterprise/4Desktop/en/os/SRPMS/thunderbird-1.0.2-1.4.1.src.rpm
4fd64e091c9b224ac6b1ec2e2389b3b8  thunderbird-1.0.2-1.4.1.src.rpm

i386:
6230f646a97610ffcf4a8470111fe784  thunderbird-1.0.2-1.4.1.i386.rpm

x86_64:
51e710c26670142b1b973fa96624b1fb  thunderbird-1.0.2-1.4.1.x86_64.rpm

Red Hat Enterprise Linux ES version 4:

SRPMS:
ftp://updates.redhat.com/enterprise/4ES/en/os/SRPMS/thunderbird-1.0.2-1.4.1.src.rpm
4fd64e091c9b224ac6b1ec2e2389b3b8  thunderbird-1.0.2-1.4.1.src.rpm

i386:
6230f646a97610ffcf4a8470111fe784  thunderbird-1.0.2-1.4.1.i386.rpm

ia64:
88982e22b690d581824e061b56993d9d  thunderbird-1.0.2-1.4.1.ia64.rpm

x86_64:
51e710c26670142b1b973fa96624b1fb  thunderbird-1.0.2-1.4.1.x86_64.rpm

Red Hat Enterprise Linux WS version 4:

SRPMS:
ftp://updates.redhat.com/enterprise/4WS/en/os/SRPMS/thunderbird-1.0.2-1.4.1.src.rpm
4fd64e091c9b224ac6b1ec2e2389b3b8  thunderbird-1.0.2-1.4.1.src.rpm

i386:
6230f646a97610ffcf4a8470111fe784  thunderbird-1.0.2-1.4.1.i386.rpm

ia64:
88982e22b690d581824e061b56993d9d  thunderbird-1.0.2-1.4.1.ia64.rpm

x86_64:
51e710c26670142b1b973fa96624b1fb  thunderbird-1.0.2-1.4.1.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://www.redhat.com/security/team/key/#package

7. References:

http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2005-0399
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2005-0255

8. Contact:

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

Copyright 2005 Red Hat, Inc.