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                   Red Hat Security Advisory

Synopsis:          Important: firefox security update
Advisory ID:       RHSA-2005:434-01
Advisory URL:      https://rhn.redhat.com/errata/RHSA-2005-434.html
Issue date:        2005-05-23
Updated on:        2005-05-23
Product:           Red Hat Enterprise Linux
CVE Names:         CAN-2005-1476 CAN-2005-1477 CAN-2005-1531 CAN-2005-1532
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1. Summary:

Updated firefox packages that fix various security bugs are now available.

This update has been rated as having important 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 Firefox is an open source Web browser.

Several bugs were found in the way Firefox executes javascript code.
Javascript executed from a web page should run with a restricted access
level, preventing dangerous actions. It is possible that a malicious web
page could execute javascript code with elevated privileges, allowing
access to protected data and functions. The Common Vulnerabilities and
Exposures project (cve.mitre.org) has assigned the names CAN-2005-1476,
CAN-2005-1477, CAN-2005-1531, and CAN-2005-1532 to these issues.

Please note that the effects of CAN-2005-1477 are mitigated by the default
setup, which allows only the Mozilla Update site to attempt installation of
Firefox extensions. The Mozilla Update site has been modified to prevent
this attack from working. If other URLs have been manually added to the
whitelist, it may be possible to execute this attack.

Users of Firefox are advised to upgrade to this updated package which
contains Firefox version 1.0.4 which is not vulnerable to these issues.

4. Solution:

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

This update is available via Red Hat Network.  To use Red Hat Network,
launch the Red Hat Update Agent with the following command:

up2date

This will start an interactive process that will result in the appropriate
RPMs being upgraded on your system.

5. RPMs required:

Red Hat Enterprise Linux AS version 4:

SRPMS:
ftp://updates.redhat.com/enterprise/4AS/en/os/SRPMS/firefox-1.0.4-1.4.1.src.rpm
4f9b4bd723aba8d5293d00aac34c1b86  firefox-1.0.4-1.4.1.src.rpm

i386:
b68ad59036bb0b74fea8c5d53ea39438  firefox-1.0.4-1.4.1.i386.rpm

ia64:
bfa8af9ed21d9a3827f866b841a783cc  firefox-1.0.4-1.4.1.ia64.rpm

ppc:
71dbb17fce1828eb3f46114d05272fa8  firefox-1.0.4-1.4.1.ppc.rpm

s390:
534c7d82c927c24aae9f37acbcdcd4ea  firefox-1.0.4-1.4.1.s390.rpm

s390x:
dbdfe11ecc3482691f0674a83ccbb82e  firefox-1.0.4-1.4.1.s390x.rpm

x86_64:
33a6987f34b973610f9dab1a0efb59ed  firefox-1.0.4-1.4.1.x86_64.rpm

Red Hat Enterprise Linux Desktop version 4:

SRPMS:
ftp://updates.redhat.com/enterprise/4Desktop/en/os/SRPMS/firefox-1.0.4-1.4.1.src.rpm
4f9b4bd723aba8d5293d00aac34c1b86  firefox-1.0.4-1.4.1.src.rpm

i386:
b68ad59036bb0b74fea8c5d53ea39438  firefox-1.0.4-1.4.1.i386.rpm

x86_64:
33a6987f34b973610f9dab1a0efb59ed  firefox-1.0.4-1.4.1.x86_64.rpm

Red Hat Enterprise Linux ES version 4:

SRPMS:
ftp://updates.redhat.com/enterprise/4ES/en/os/SRPMS/firefox-1.0.4-1.4.1.src.rpm
4f9b4bd723aba8d5293d00aac34c1b86  firefox-1.0.4-1.4.1.src.rpm

i386:
b68ad59036bb0b74fea8c5d53ea39438  firefox-1.0.4-1.4.1.i386.rpm

ia64:
bfa8af9ed21d9a3827f866b841a783cc  firefox-1.0.4-1.4.1.ia64.rpm

x86_64:
33a6987f34b973610f9dab1a0efb59ed  firefox-1.0.4-1.4.1.x86_64.rpm

Red Hat Enterprise Linux WS version 4:

SRPMS:
ftp://updates.redhat.com/enterprise/4WS/en/os/SRPMS/firefox-1.0.4-1.4.1.src.rpm
4f9b4bd723aba8d5293d00aac34c1b86  firefox-1.0.4-1.4.1.src.rpm

i386:
b68ad59036bb0b74fea8c5d53ea39438  firefox-1.0.4-1.4.1.i386.rpm

ia64:
bfa8af9ed21d9a3827f866b841a783cc  firefox-1.0.4-1.4.1.ia64.rpm

x86_64:
33a6987f34b973610f9dab1a0efb59ed  firefox-1.0.4-1.4.1.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

6. References:

http://www.mozilla.org/projects/security/known-vulnerabilities.html#firefox1.0.4
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2005-1476
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2005-1477
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2005-1531
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2005-1532

7. Contact:

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

Copyright 2005 Red Hat, Inc.

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