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AUSCERT External Security Bulletin Redistribution
ESB-2005.0702 -- RHSA-2005:768-01
Critical: firefox security update
12 September 2005
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AusCERT Security Bulletin Summary
---------------------------------
Product: Firefox
Publisher: Red Hat
Operating System: Red Hat Enterprise Linux Desktop 4
Red Hat Enterprise Linux AS/ES/WS 4
UNIX variants
Windows
Impact: Execute Arbitrary Code/Commands
Denial of Service
Access: Remote/Unauthenticated
CVE Names: CAN-2005-2871
Original Bulletin: https://rhn.redhat.com/errata/RHSA-2005-768.html
Comment: While a patch is not available at this time for some operating
systems, the following workaround can be used to mitigate this
problem:
1) Open Firefox and type 'about:config' (without the quotes) into
the address bar.
2) In the Filter Toolbar, type 'network.enableIDN' (no quotes).
3) Right click on the network.enableIDN item and select 'Toggle'
to change the value to 'false'.
Please note that while this workaround does protect Firefox from
the vulnerability, International Domain Names will no longer
function. For most users this loss of functionality will not be
noticed.
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Red Hat Security Advisory
Synopsis: Critical: firefox security update
Advisory ID: RHSA-2005:768-01
Advisory URL: https://rhn.redhat.com/errata/RHSA-2005-768.html
Issue date: 2005-09-09
Updated on: 2005-09-09
Product: Red Hat Enterprise Linux
CVE Names: CAN-2005-2871
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1. Summary:
An updated firefox package that fixes as security bug is now available for
Red Hat Enterprise Linux 4.
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 way Firefox processes certain international domain
names. An attacker could create a specially crafted HTML file, which when
viewed by the victim would cause Firefox to crash or possibly execute
arbitrary code. The Common Vulnerabilities and Exposures project
(cve.mitre.org) has assigned the name CAN-2005-2871 to this issue.
Users of Firefox are advised to upgrade to this updated package that
contains a backported patch and is not vulnerable to this issue.
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. Bug IDs fixed (http://bugzilla.redhat.com/):
167930 - CAN-2005-2871 Firefox buffer overflow
6. RPMs required:
Red Hat Enterprise Linux AS version 4:
SRPMS:
ftp://updates.redhat.com/enterprise/4AS/en/os/SRPMS/firefox-1.0.6-1.4.2.src.rpm
8aa01f9cb442093b6d1f37a637130613 firefox-1.0.6-1.4.2.src.rpm
i386:
bbbae2299ecaad24abaa13d4c773402b firefox-1.0.6-1.4.2.i386.rpm
ia64:
488e71f4d6c953f45fd6d58a680b5298 firefox-1.0.6-1.4.2.ia64.rpm
ppc:
37510d0d186d37df07b40d0f9386624b firefox-1.0.6-1.4.2.ppc.rpm
s390:
01a95a128cdd4bef268880e7fc9297fe firefox-1.0.6-1.4.2.s390.rpm
s390x:
4f14cc8c8fadd5147a0c942b126bc84b firefox-1.0.6-1.4.2.s390x.rpm
x86_64:
37e79e5af0f174711bc83475977c11d4 firefox-1.0.6-1.4.2.x86_64.rpm
Red Hat Enterprise Linux Desktop version 4:
SRPMS:
ftp://updates.redhat.com/enterprise/4Desktop/en/os/SRPMS/firefox-1.0.6-1.4.2.src.rpm
8aa01f9cb442093b6d1f37a637130613 firefox-1.0.6-1.4.2.src.rpm
i386:
bbbae2299ecaad24abaa13d4c773402b firefox-1.0.6-1.4.2.i386.rpm
x86_64:
37e79e5af0f174711bc83475977c11d4 firefox-1.0.6-1.4.2.x86_64.rpm
Red Hat Enterprise Linux ES version 4:
SRPMS:
ftp://updates.redhat.com/enterprise/4ES/en/os/SRPMS/firefox-1.0.6-1.4.2.src.rpm
8aa01f9cb442093b6d1f37a637130613 firefox-1.0.6-1.4.2.src.rpm
i386:
bbbae2299ecaad24abaa13d4c773402b firefox-1.0.6-1.4.2.i386.rpm
ia64:
488e71f4d6c953f45fd6d58a680b5298 firefox-1.0.6-1.4.2.ia64.rpm
x86_64:
37e79e5af0f174711bc83475977c11d4 firefox-1.0.6-1.4.2.x86_64.rpm
Red Hat Enterprise Linux WS version 4:
SRPMS:
ftp://updates.redhat.com/enterprise/4WS/en/os/SRPMS/firefox-1.0.6-1.4.2.src.rpm
8aa01f9cb442093b6d1f37a637130613 firefox-1.0.6-1.4.2.src.rpm
i386:
bbbae2299ecaad24abaa13d4c773402b firefox-1.0.6-1.4.2.i386.rpm
ia64:
488e71f4d6c953f45fd6d58a680b5298 firefox-1.0.6-1.4.2.ia64.rpm
x86_64:
37e79e5af0f174711bc83475977c11d4 firefox-1.0.6-1.4.2.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-2005-2871
8. 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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