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

Synopsis:          Critical: firefox security update
Advisory ID:       RHSA-2005:176-01
Advisory URL:      https://access.redhat.com/errata/RHSA-2005:176.html
Issue date:        2005-03-01
Updated on:        2005-03-01
Product:           Red Hat Enterprise Linux
CVE Names:         CAN-2004-1156 CAN-2005-0231 CAN-2005-0232 CAN-2005-0233 CAN-2005-0255 CAN-2005-0527 CAN-2005-0578 CAN-2005-0584 CAN-2005-0585 CAN-2005-0586 CAN-2005-0588 CAN-2005-0589 CAN-2005-0590 CAN-2005-0591 CAN-2005-0592 CAN-2005-0593
- ---------------------------------------------------------------------1. Summary:

Updated firefox 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 Firefox is an open source Web browser.

A bug was found in the Firefox 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.

A bug was found in the way Firefox handles pop-up windows. It is possible
for a malicious website to control the content in an unrelated site's
pop-up window. (CAN-2004-1156)

A bug was found in the way Firefox allows plug-ins to load privileged
content into a frame. It is possible that a malicious webpage could trick a
user into clicking in certain places to modify configuration settings or
execute arbitrary code. (CAN-2005-0232 and CAN-2005-0527).

A flaw was found in the way Firefox displays international domain names. It
is possible for an attacker to display a valid URL, tricking the user into
thinking they are viewing a legitimate webpage when they are not.
(CAN-2005-0233)

A bug was found in the way Firefox handles plug-in temporary files. A
malicious local user could create a symlink to a victims directory, causing
it to be deleted when the victim exits Firefox. (CAN-2005-0578)

A bug has been found in one of Firefox's UTF-8 converters. It may be
possible for an attacker to supply a specially crafted UTF-8 string to the
buggy converter, leading to arbitrary code execution. (CAN-2005-0592)

A bug was found in the Firefox javascript security manager. If a user drags
a malicious link to a tab, the javascript security manager is bypassed
which could result in remote code execution or information disclosure.
(CAN-2005-0231)

A bug was found in the way Firefox displays the HTTP authentication prompt.
When a user is prompted for authentication, the dialog window is displayed
over the active tab, regardless of the tab that caused the pop-up to appear
and could trick a user into entering their username and password for a
trusted site.  (CAN-2005-0584)

A bug was found in the way Firefox displays the save file dialog. It is
possible for a malicious webserver to spoof the Content-Disposition header,
tricking the user into thinking they are downloading a different filetype.
(CAN-2005-0586)

A bug was found in the way Firefox handles users "down-arrow" through auto
completed choices. When an autocomplete choice is selected, the information
is copied into the input control, possibly allowing a malicious web site to
steal information by tricking a user into arrowing through autocompletion
choices. (CAN-2005-0589)

Several bugs were found in the way Firefox displays the secure site icon.
It is possible that a malicious website could display the secure site icon
along with incorrect certificate information. (CAN-2005-0593)

A bug was found in the way Firefox displays the download dialog window. A
malicious site can obfuscate the content displayed in the source field,
tricking a user into thinking they are downloading content from a trusted
source. (CAN-2005-0585)

A bug was found in the way Firefox handles xsl:include and xsl:import
directives. It is possible for a malicious website to import XSLT
stylesheets from a domain behind a firewall, leaking information to an
attacker. (CAN-2005-0588)

A bug was found in the way Firefox displays the installation confirmation
dialog. An attacker could add a long user:pass before the true hostname,
tricking a user into thinking they were installing content from a trusted
source. (CAN-2005-0590)

A bug was found in the way Firefox displays download and security dialogs.
An attacker could cover up part of a dialog window tricking the user into
clicking "Allow" or "Open", which could potentially lead to arbitrary code
execution. (CAN-2005-0591)

Users of Firefox are advised to upgrade to this updated package which
contains Firefox version 1.0.1 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/):

147727 - CAN-2005-0232 fireflashing vulnerability (CAN-2005-0527)
149876 - CAN-2005-0255 Memory overwrite in string library
147735 - CAN-2005-0231 firefox javascript tab security bypass
147402 - CAN-2005-0233 homograph spoofing
142506 - CAN-2004-1156 Frame injection vulnerability.
144216 - CAN-2005-0585 download dialog URL spoofing
149923 - CAN-2005-0578 Unsafe /tmp/plugtmp directory exploitable to erase user's files
149929 - CAN-2005-0584 HTTP auth prompt tab spoofing
149930 - CAN-2005-0586 Download dialog spoofing using Content-Disposition header
149931 - CAN-2005-0588 XSLT can include stylesheets from arbitrary hosts
149934 - CAN-2005-0589 Autocomplete data leak
149936 - CAN-2005-0590 Install source spoofing with user:pass@host
149937 - CAN-2005-0591 Spoofing download and security dialogs with overlapping windows
149938 - CAN-2005-0592 Heap overflow possible in UTF8 to Unicode conversion
149939 - CAN-2005-0593 SSL "secure site" indicator spoofing

6. RPMs required:

Red Hat Enterprise Linux AS version 4:

SRPMS:
8a6aedb095f62077e64124ddc577b9fb  firefox-1.0.1-1.4.3.src.rpm

i386:
b892ffeb126d1ef24f2c9059650d1000  firefox-1.0.1-1.4.3.i386.rpm

ia64:
303645b51596c4d7d0f0de81c3efdf4b  firefox-1.0.1-1.4.3.ia64.rpm

ppc:
7b3535d928649b7e2ae3c594fa4635bd  firefox-1.0.1-1.4.3.ppc.rpm

s390:
73ea97180b4ca648b996c3e33e4b8ed8  firefox-1.0.1-1.4.3.s390.rpm

s390x:
5cacc37451e98bcc57134d5e4fb9542b  firefox-1.0.1-1.4.3.s390x.rpm

x86_64:
5d826defe063b94510651a6b68e6e719  firefox-1.0.1-1.4.3.x86_64.rpm

Red Hat Enterprise Linux Desktop version 4:

SRPMS:
8a6aedb095f62077e64124ddc577b9fb  firefox-1.0.1-1.4.3.src.rpm

i386:
b892ffeb126d1ef24f2c9059650d1000  firefox-1.0.1-1.4.3.i386.rpm

x86_64:
5d826defe063b94510651a6b68e6e719  firefox-1.0.1-1.4.3.x86_64.rpm

Red Hat Enterprise Linux ES version 4:

SRPMS:
8a6aedb095f62077e64124ddc577b9fb  firefox-1.0.1-1.4.3.src.rpm

i386:
b892ffeb126d1ef24f2c9059650d1000  firefox-1.0.1-1.4.3.i386.rpm

ia64:
303645b51596c4d7d0f0de81c3efdf4b  firefox-1.0.1-1.4.3.ia64.rpm

x86_64:
5d826defe063b94510651a6b68e6e719  firefox-1.0.1-1.4.3.x86_64.rpm

Red Hat Enterprise Linux WS version 4:

SRPMS:
8a6aedb095f62077e64124ddc577b9fb  firefox-1.0.1-1.4.3.src.rpm

i386:
b892ffeb126d1ef24f2c9059650d1000  firefox-1.0.1-1.4.3.i386.rpm

ia64:
303645b51596c4d7d0f0de81c3efdf4b  firefox-1.0.1-1.4.3.ia64.rpm

x86_64:
5d826defe063b94510651a6b68e6e719  firefox-1.0.1-1.4.3.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:

https://www.mozilla.org/en-US/security/known-vulnerabilities/
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2004-1156
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2005-0231
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2005-0232
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2005-0233
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2005-0255
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2005-0527
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2005-0578
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2005-0584
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2005-0585
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2005-0586
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2005-0588
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2005-0589
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2005-0590
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2005-0591
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2005-0592
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2005-0593

8. Contact:

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

Copyright 2005 Red Hat, Inc.