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=====================================================================
                   Red Hat Security Advisory

Synopsis:          Critical: firefox security and bug fix update
Advisory ID:       RHSA-2011:0885-01
Product:           Red Hat Enterprise Linux
Advisory URL:      https://rhn.redhat.com/errata/RHSA-2011-0885.html
Issue date:        2011-06-21
CVE Names:         CVE-2011-0083 CVE-2011-0085 CVE-2011-2362 
                   CVE-2011-2363 CVE-2011-2364 CVE-2011-2365 
                   CVE-2011-2371 CVE-2011-2373 CVE-2011-2374 
                   CVE-2011-2375 CVE-2011-2376 CVE-2011-2377 
=====================================================================

1. Summary:

Updated firefox packages that fix several security issues and one bug are
now available for Red Hat Enterprise Linux 4, 5, and 6.

The Red Hat Security Response Team has rated this update as having critical
security impact. Common Vulnerability Scoring System (CVSS) base scores,
which give detailed severity ratings, are available for each vulnerability
from the CVE links in the References section.

2. Relevant releases/architectures:

RHEL Desktop Workstation (v. 5 client) - i386, x86_64
Red Hat Enterprise Linux (v. 5 server) - i386, ia64, ppc, s390x, x86_64
Red Hat Enterprise Linux AS version 4 - i386, ia64, ppc, s390, s390x, x86_64
Red Hat Enterprise Linux Desktop (v. 5 client) - i386, x86_64
Red Hat Enterprise Linux Desktop (v. 6) - i386, x86_64
Red Hat Enterprise Linux Desktop Optional (v. 6) - i386, 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 HPC Node Optional (v. 6) - x86_64
Red Hat Enterprise Linux Server (v. 6) - i386, ppc64, s390x, x86_64
Red Hat Enterprise Linux Server Optional (v. 6) - i386, ppc64, s390x, x86_64
Red Hat Enterprise Linux WS version 4 - i386, ia64, x86_64
Red Hat Enterprise Linux Workstation (v. 6) - i386, x86_64
Red Hat Enterprise Linux Workstation Optional (v. 6) - i386, x86_64

3. Description:

Mozilla Firefox is an open source web browser. XULRunner provides the XUL
Runtime environment for Mozilla Firefox.

A flaw was found in the way Firefox handled malformed JPEG images. A
website containing a malicious JPEG image could cause Firefox to crash or,
potentially, execute arbitrary code with the privileges of the user running
Firefox. (CVE-2011-2377)

Multiple dangling pointer flaws were found in Firefox. A web page
containing malicious content could cause Firefox to crash or, potentially,
execute arbitrary code with the privileges of the user running Firefox.
(CVE-2011-0083, CVE-2011-0085, CVE-2011-2363)

Several flaws were found in the processing of malformed web content. A web
page containing malicious content could cause Firefox to crash or,
potentially, execute arbitrary code with the privileges of the user running
Firefox. (CVE-2011-2364, CVE-2011-2365, CVE-2011-2374, CVE-2011-2375,
CVE-2011-2376)

An integer overflow flaw was found in the way Firefox handled JavaScript
Array objects. A website containing malicious JavaScript could cause
Firefox to execute that JavaScript with the privileges of the user running
Firefox. (CVE-2011-2371)

A use-after-free flaw was found in the way Firefox handled malformed
JavaScript. A website containing malicious JavaScript could cause Firefox
to execute that JavaScript with the privileges of the user running Firefox.
(CVE-2011-2373)

It was found that Firefox could treat two separate cookies as
interchangeable if both were for the same domain name but one of those
domain names had a trailing "." character. This violates the same-origin
policy and could possibly lead to data being leaked to the wrong domain.
(CVE-2011-2362)

For technical details regarding these flaws, refer to the Mozilla security
advisories for Firefox 3.6.18. You can find a link to the Mozilla
advisories in the References section of this erratum.

This update also fixes the following bug:

* With previous versions of Firefox on Red Hat Enterprise Linux 5, the
"background-repeat" CSS (Cascading Style Sheets) property did not work
(such images were not displayed and repeated as expected). (BZ#698313)

All Firefox users should upgrade to these updated packages, which contain
Firefox version 3.6.18, which corrects these issues. After installing the
update, Firefox must be restarted for the changes to take effect.

4. Solution:

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

This update is available via the Red Hat Network. Details on how to
use the Red Hat Network to apply this update are available at
https://access.redhat.com/kb/docs/DOC-11259

5. Bugs fixed (http://bugzilla.redhat.com/):

698313 - "background-repeat" css property isn't rendered well in Firefox 3.6.x
714576 - CVE-2011-2364, CVE-2011-2365, CVE-2011-2374, CVE-2011-2375, CVE-2011-2376 Mozilla Miscellaneous memory safety hazards (MFSA 2011-19)
714577 - CVE-2011-2373 Mozilla Use-after-free vulnerability when viewing XUL document with script disabled (MFSA 2011-20)
714580 - CVE-2011-2371 Mozilla Integer overflow and arbitrary code execution (MFSA 2011-22)
714581 - CVE-2011-0083 CVE-2011-0085 CVE-2011-2363 Mozilla Multiple dangling pointer vulnerabilities (MFSA 2011-23)
714583 - CVE-2011-2362 Mozilla Cookie isolation error (MFSA 2011-24)
714929 - CVE-2011-2377 Mozilla Crash caused by corrupted JPEG image (MFSA 2011-21)

6. Package List:

Red Hat Enterprise Linux AS version 4:

Source:
ftp://updates.redhat.com/enterprise/4AS/en/os/SRPMS/firefox-3.6.18-2.el4.src.rpm

i386:
firefox-3.6.18-2.el4.i386.rpm
firefox-debuginfo-3.6.18-2.el4.i386.rpm

ia64:
firefox-3.6.18-2.el4.ia64.rpm
firefox-debuginfo-3.6.18-2.el4.ia64.rpm

ppc:
firefox-3.6.18-2.el4.ppc.rpm
firefox-debuginfo-3.6.18-2.el4.ppc.rpm

s390:
firefox-3.6.18-2.el4.s390.rpm
firefox-debuginfo-3.6.18-2.el4.s390.rpm

s390x:
firefox-3.6.18-2.el4.s390x.rpm
firefox-debuginfo-3.6.18-2.el4.s390x.rpm

x86_64:
firefox-3.6.18-2.el4.x86_64.rpm
firefox-debuginfo-3.6.18-2.el4.x86_64.rpm

Red Hat Enterprise Linux Desktop version 4:

Source:
ftp://updates.redhat.com/enterprise/4Desktop/en/os/SRPMS/firefox-3.6.18-2.el4.src.rpm

i386:
firefox-3.6.18-2.el4.i386.rpm
firefox-debuginfo-3.6.18-2.el4.i386.rpm

x86_64:
firefox-3.6.18-2.el4.x86_64.rpm
firefox-debuginfo-3.6.18-2.el4.x86_64.rpm

Red Hat Enterprise Linux ES version 4:

Source:
ftp://updates.redhat.com/enterprise/4ES/en/os/SRPMS/firefox-3.6.18-2.el4.src.rpm

i386:
firefox-3.6.18-2.el4.i386.rpm
firefox-debuginfo-3.6.18-2.el4.i386.rpm

ia64:
firefox-3.6.18-2.el4.ia64.rpm
firefox-debuginfo-3.6.18-2.el4.ia64.rpm

x86_64:
firefox-3.6.18-2.el4.x86_64.rpm
firefox-debuginfo-3.6.18-2.el4.x86_64.rpm

Red Hat Enterprise Linux WS version 4:

Source:
ftp://updates.redhat.com/enterprise/4WS/en/os/SRPMS/firefox-3.6.18-2.el4.src.rpm

i386:
firefox-3.6.18-2.el4.i386.rpm
firefox-debuginfo-3.6.18-2.el4.i386.rpm

ia64:
firefox-3.6.18-2.el4.ia64.rpm
firefox-debuginfo-3.6.18-2.el4.ia64.rpm

x86_64:
firefox-3.6.18-2.el4.x86_64.rpm
firefox-debuginfo-3.6.18-2.el4.x86_64.rpm

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

Source:
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/5Client/en/os/SRPMS/firefox-3.6.18-1.el5_6.src.rpm
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/5Client/en/os/SRPMS/xulrunner-1.9.2.18-2.el5_6.src.rpm

i386:
firefox-3.6.18-1.el5_6.i386.rpm
firefox-debuginfo-3.6.18-1.el5_6.i386.rpm
xulrunner-1.9.2.18-2.el5_6.i386.rpm
xulrunner-debuginfo-1.9.2.18-2.el5_6.i386.rpm

x86_64:
firefox-3.6.18-1.el5_6.i386.rpm
firefox-3.6.18-1.el5_6.x86_64.rpm
firefox-debuginfo-3.6.18-1.el5_6.i386.rpm
firefox-debuginfo-3.6.18-1.el5_6.x86_64.rpm
xulrunner-1.9.2.18-2.el5_6.i386.rpm
xulrunner-1.9.2.18-2.el5_6.x86_64.rpm
xulrunner-debuginfo-1.9.2.18-2.el5_6.i386.rpm
xulrunner-debuginfo-1.9.2.18-2.el5_6.x86_64.rpm

RHEL Desktop Workstation (v. 5 client):

Source:
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/5Client/en/os/SRPMS/xulrunner-1.9.2.18-2.el5_6.src.rpm

i386:
xulrunner-debuginfo-1.9.2.18-2.el5_6.i386.rpm
xulrunner-devel-1.9.2.18-2.el5_6.i386.rpm

x86_64:
xulrunner-debuginfo-1.9.2.18-2.el5_6.i386.rpm
xulrunner-debuginfo-1.9.2.18-2.el5_6.x86_64.rpm
xulrunner-devel-1.9.2.18-2.el5_6.i386.rpm
xulrunner-devel-1.9.2.18-2.el5_6.x86_64.rpm

Red Hat Enterprise Linux (v. 5 server):

Source:
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/5Server/en/os/SRPMS/firefox-3.6.18-1.el5_6.src.rpm
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/5Server/en/os/SRPMS/xulrunner-1.9.2.18-2.el5_6.src.rpm

i386:
firefox-3.6.18-1.el5_6.i386.rpm
firefox-debuginfo-3.6.18-1.el5_6.i386.rpm
xulrunner-1.9.2.18-2.el5_6.i386.rpm
xulrunner-debuginfo-1.9.2.18-2.el5_6.i386.rpm
xulrunner-devel-1.9.2.18-2.el5_6.i386.rpm

ia64:
firefox-3.6.18-1.el5_6.ia64.rpm
firefox-debuginfo-3.6.18-1.el5_6.ia64.rpm
xulrunner-1.9.2.18-2.el5_6.ia64.rpm
xulrunner-debuginfo-1.9.2.18-2.el5_6.ia64.rpm
xulrunner-devel-1.9.2.18-2.el5_6.ia64.rpm

ppc:
firefox-3.6.18-1.el5_6.ppc.rpm
firefox-debuginfo-3.6.18-1.el5_6.ppc.rpm
xulrunner-1.9.2.18-2.el5_6.ppc.rpm
xulrunner-1.9.2.18-2.el5_6.ppc64.rpm
xulrunner-debuginfo-1.9.2.18-2.el5_6.ppc.rpm
xulrunner-debuginfo-1.9.2.18-2.el5_6.ppc64.rpm
xulrunner-devel-1.9.2.18-2.el5_6.ppc.rpm
xulrunner-devel-1.9.2.18-2.el5_6.ppc64.rpm

s390x:
firefox-3.6.18-1.el5_6.s390.rpm
firefox-3.6.18-1.el5_6.s390x.rpm
firefox-debuginfo-3.6.18-1.el5_6.s390.rpm
firefox-debuginfo-3.6.18-1.el5_6.s390x.rpm
xulrunner-1.9.2.18-2.el5_6.s390.rpm
xulrunner-1.9.2.18-2.el5_6.s390x.rpm
xulrunner-debuginfo-1.9.2.18-2.el5_6.s390.rpm
xulrunner-debuginfo-1.9.2.18-2.el5_6.s390x.rpm
xulrunner-devel-1.9.2.18-2.el5_6.s390.rpm
xulrunner-devel-1.9.2.18-2.el5_6.s390x.rpm

x86_64:
firefox-3.6.18-1.el5_6.i386.rpm
firefox-3.6.18-1.el5_6.x86_64.rpm
firefox-debuginfo-3.6.18-1.el5_6.i386.rpm
firefox-debuginfo-3.6.18-1.el5_6.x86_64.rpm
xulrunner-1.9.2.18-2.el5_6.i386.rpm
xulrunner-1.9.2.18-2.el5_6.x86_64.rpm
xulrunner-debuginfo-1.9.2.18-2.el5_6.i386.rpm
xulrunner-debuginfo-1.9.2.18-2.el5_6.x86_64.rpm
xulrunner-devel-1.9.2.18-2.el5_6.i386.rpm
xulrunner-devel-1.9.2.18-2.el5_6.x86_64.rpm

Red Hat Enterprise Linux Desktop (v. 6):

Source:
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/6Client/en/os/SRPMS/firefox-3.6.18-1.el6_1.src.rpm
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/6Client/en/os/SRPMS/xulrunner-1.9.2.18-2.el6_1.src.rpm

i386:
firefox-3.6.18-1.el6_1.i686.rpm
firefox-debuginfo-3.6.18-1.el6_1.i686.rpm
xulrunner-1.9.2.18-2.el6_1.i686.rpm
xulrunner-debuginfo-1.9.2.18-2.el6_1.i686.rpm

x86_64:
firefox-3.6.18-1.el6_1.i686.rpm
firefox-3.6.18-1.el6_1.x86_64.rpm
firefox-debuginfo-3.6.18-1.el6_1.i686.rpm
firefox-debuginfo-3.6.18-1.el6_1.x86_64.rpm
xulrunner-1.9.2.18-2.el6_1.i686.rpm
xulrunner-1.9.2.18-2.el6_1.x86_64.rpm
xulrunner-debuginfo-1.9.2.18-2.el6_1.i686.rpm
xulrunner-debuginfo-1.9.2.18-2.el6_1.x86_64.rpm

Red Hat Enterprise Linux Desktop Optional (v. 6):

Source:
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/6Client/en/os/SRPMS/xulrunner-1.9.2.18-2.el6_1.src.rpm

i386:
xulrunner-debuginfo-1.9.2.18-2.el6_1.i686.rpm
xulrunner-devel-1.9.2.18-2.el6_1.i686.rpm

x86_64:
xulrunner-debuginfo-1.9.2.18-2.el6_1.i686.rpm
xulrunner-debuginfo-1.9.2.18-2.el6_1.x86_64.rpm
xulrunner-devel-1.9.2.18-2.el6_1.i686.rpm
xulrunner-devel-1.9.2.18-2.el6_1.x86_64.rpm

Red Hat Enterprise Linux HPC Node Optional (v. 6):

Source:
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/6ComputeNode/en/os/SRPMS/firefox-3.6.18-1.el6_1.src.rpm
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/6ComputeNode/en/os/SRPMS/xulrunner-1.9.2.18-2.el6_1.src.rpm

x86_64:
firefox-3.6.18-1.el6_1.i686.rpm
firefox-3.6.18-1.el6_1.x86_64.rpm
firefox-debuginfo-3.6.18-1.el6_1.i686.rpm
firefox-debuginfo-3.6.18-1.el6_1.x86_64.rpm
xulrunner-1.9.2.18-2.el6_1.i686.rpm
xulrunner-1.9.2.18-2.el6_1.x86_64.rpm
xulrunner-debuginfo-1.9.2.18-2.el6_1.i686.rpm
xulrunner-debuginfo-1.9.2.18-2.el6_1.x86_64.rpm
xulrunner-devel-1.9.2.18-2.el6_1.i686.rpm
xulrunner-devel-1.9.2.18-2.el6_1.x86_64.rpm

Red Hat Enterprise Linux Server (v. 6):

Source:
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/6Server/en/os/SRPMS/firefox-3.6.18-1.el6_1.src.rpm
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/6Server/en/os/SRPMS/xulrunner-1.9.2.18-2.el6_1.src.rpm

i386:
firefox-3.6.18-1.el6_1.i686.rpm
firefox-debuginfo-3.6.18-1.el6_1.i686.rpm
xulrunner-1.9.2.18-2.el6_1.i686.rpm
xulrunner-debuginfo-1.9.2.18-2.el6_1.i686.rpm

ppc64:
firefox-3.6.18-1.el6_1.ppc.rpm
firefox-3.6.18-1.el6_1.ppc64.rpm
firefox-debuginfo-3.6.18-1.el6_1.ppc.rpm
firefox-debuginfo-3.6.18-1.el6_1.ppc64.rpm
xulrunner-1.9.2.18-2.el6_1.ppc.rpm
xulrunner-1.9.2.18-2.el6_1.ppc64.rpm
xulrunner-debuginfo-1.9.2.18-2.el6_1.ppc.rpm
xulrunner-debuginfo-1.9.2.18-2.el6_1.ppc64.rpm

s390x:
firefox-3.6.18-1.el6_1.s390.rpm
firefox-3.6.18-1.el6_1.s390x.rpm
firefox-debuginfo-3.6.18-1.el6_1.s390.rpm
firefox-debuginfo-3.6.18-1.el6_1.s390x.rpm
xulrunner-1.9.2.18-2.el6_1.s390.rpm
xulrunner-1.9.2.18-2.el6_1.s390x.rpm
xulrunner-debuginfo-1.9.2.18-2.el6_1.s390.rpm
xulrunner-debuginfo-1.9.2.18-2.el6_1.s390x.rpm

x86_64:
firefox-3.6.18-1.el6_1.i686.rpm
firefox-3.6.18-1.el6_1.x86_64.rpm
firefox-debuginfo-3.6.18-1.el6_1.i686.rpm
firefox-debuginfo-3.6.18-1.el6_1.x86_64.rpm
xulrunner-1.9.2.18-2.el6_1.i686.rpm
xulrunner-1.9.2.18-2.el6_1.x86_64.rpm
xulrunner-debuginfo-1.9.2.18-2.el6_1.i686.rpm
xulrunner-debuginfo-1.9.2.18-2.el6_1.x86_64.rpm

Red Hat Enterprise Linux Server Optional (v. 6):

Source:
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/6Server/en/os/SRPMS/xulrunner-1.9.2.18-2.el6_1.src.rpm

i386:
xulrunner-debuginfo-1.9.2.18-2.el6_1.i686.rpm
xulrunner-devel-1.9.2.18-2.el6_1.i686.rpm

ppc64:
xulrunner-debuginfo-1.9.2.18-2.el6_1.ppc.rpm
xulrunner-debuginfo-1.9.2.18-2.el6_1.ppc64.rpm
xulrunner-devel-1.9.2.18-2.el6_1.ppc.rpm
xulrunner-devel-1.9.2.18-2.el6_1.ppc64.rpm

s390x:
xulrunner-debuginfo-1.9.2.18-2.el6_1.s390.rpm
xulrunner-debuginfo-1.9.2.18-2.el6_1.s390x.rpm
xulrunner-devel-1.9.2.18-2.el6_1.s390.rpm
xulrunner-devel-1.9.2.18-2.el6_1.s390x.rpm

x86_64:
xulrunner-debuginfo-1.9.2.18-2.el6_1.i686.rpm
xulrunner-debuginfo-1.9.2.18-2.el6_1.x86_64.rpm
xulrunner-devel-1.9.2.18-2.el6_1.i686.rpm
xulrunner-devel-1.9.2.18-2.el6_1.x86_64.rpm

Red Hat Enterprise Linux Workstation (v. 6):

Source:
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/6Workstation/en/os/SRPMS/firefox-3.6.18-1.el6_1.src.rpm
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/6Workstation/en/os/SRPMS/xulrunner-1.9.2.18-2.el6_1.src.rpm

i386:
firefox-3.6.18-1.el6_1.i686.rpm
firefox-debuginfo-3.6.18-1.el6_1.i686.rpm
xulrunner-1.9.2.18-2.el6_1.i686.rpm
xulrunner-debuginfo-1.9.2.18-2.el6_1.i686.rpm

x86_64:
firefox-3.6.18-1.el6_1.i686.rpm
firefox-3.6.18-1.el6_1.x86_64.rpm
firefox-debuginfo-3.6.18-1.el6_1.i686.rpm
firefox-debuginfo-3.6.18-1.el6_1.x86_64.rpm
xulrunner-1.9.2.18-2.el6_1.i686.rpm
xulrunner-1.9.2.18-2.el6_1.x86_64.rpm
xulrunner-debuginfo-1.9.2.18-2.el6_1.i686.rpm
xulrunner-debuginfo-1.9.2.18-2.el6_1.x86_64.rpm

Red Hat Enterprise Linux Workstation Optional (v. 6):

Source:
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/6Workstation/en/os/SRPMS/xulrunner-1.9.2.18-2.el6_1.src.rpm

i386:
xulrunner-debuginfo-1.9.2.18-2.el6_1.i686.rpm
xulrunner-devel-1.9.2.18-2.el6_1.i686.rpm

x86_64:
xulrunner-debuginfo-1.9.2.18-2.el6_1.i686.rpm
xulrunner-debuginfo-1.9.2.18-2.el6_1.x86_64.rpm
xulrunner-devel-1.9.2.18-2.el6_1.i686.rpm
xulrunner-devel-1.9.2.18-2.el6_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://access.redhat.com/security/team/key/#package

7. References:

https://www.redhat.com/security/data/cve/CVE-2011-0083.html
https://www.redhat.com/security/data/cve/CVE-2011-0085.html
https://www.redhat.com/security/data/cve/CVE-2011-2362.html
https://www.redhat.com/security/data/cve/CVE-2011-2363.html
https://www.redhat.com/security/data/cve/CVE-2011-2364.html
https://www.redhat.com/security/data/cve/CVE-2011-2365.html
https://www.redhat.com/security/data/cve/CVE-2011-2371.html
https://www.redhat.com/security/data/cve/CVE-2011-2373.html
https://www.redhat.com/security/data/cve/CVE-2011-2374.html
https://www.redhat.com/security/data/cve/CVE-2011-2375.html
https://www.redhat.com/security/data/cve/CVE-2011-2376.html
https://www.redhat.com/security/data/cve/CVE-2011-2377.html
https://access.redhat.com/security/updates/classification/#critical
http://www.mozilla.org/security/known-vulnerabilities/firefox36.html#firefox3.6.18

8. Contact:

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

Copyright 2011 Red Hat, Inc.
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