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[RHSA-2011:1341-01] Critical: firefox security update



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

Synopsis:          Critical: firefox security update
Advisory ID:       RHSA-2011:1341-01
Product:           Red Hat Enterprise Linux
Advisory URL:      https://rhn.redhat.com/errata/RHSA-2011-1341.html
Issue date:        2011-09-28
CVE Names:         CVE-2011-2372 CVE-2011-2995 CVE-2011-2998 
                   CVE-2011-2999 CVE-2011-3000 
=====================================================================

1. Summary:

Updated firefox packages that fix several security issues 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.

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-2011-2995)

A flaw was found in the way Firefox processed the "Enter" keypress event. A
malicious web page could present a download dialog while the key is
pressed, activating the default "Open" action. A remote attacker could
exploit this vulnerability by causing the browser to open malicious web
content. (CVE-2011-2372)

A flaw was found in the way Firefox handled Location headers in redirect
responses. Two copies of this header with different values could be a
symptom of a CRLF injection attack against a vulnerable server. Firefox now
treats two copies of the Location, Content-Length, or Content-Disposition
header as an error condition. (CVE-2011-3000)

A flaw was found in the way Firefox handled frame objects with certain
names. An attacker could use this flaw to cause a plug-in to grant its
content access to another site or the local file system, violating the
same-origin policy. (CVE-2011-2999)

An integer underflow flaw was found in the way Firefox handled large
JavaScript regular expressions. A web page containing malicious JavaScript
could cause Firefox to access already freed memory, causing Firefox to
crash or, potentially, execute arbitrary code with the privileges of the
user running Firefox. (CVE-2011-2998)

For technical details regarding these flaws, refer to the Mozilla security
advisories for Firefox 3.6.23. You can find a link to the Mozilla
advisories in the References section of this erratum.

All Firefox users should upgrade to these updated packages, which contain
Firefox version 3.6.23, 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/):

741902 - CVE-2011-2995 Mozilla: Miscellaneous memory safety hazards  (MFSA 2011-36)
741904 - CVE-2011-2999 Mozilla: XSS via plugins and shadowed window.location object (MFSA 2011-38)
741905 - CVE-2011-3000 Mozilla:Defense against multiple Location headers due to CRLF Injection (MFSA 2011-39)
741917 - CVE-2011-2372 Mozilla:Code installation through holding down Enter (MFSA 2011-40)
741924 - CVE-2011-2998 Mozilla: Integer underflow when using JavaScript RegExp (MFSA 2011-37)

6. Package List:

Red Hat Enterprise Linux AS version 4:

Source:
ftp://updates.redhat.com/enterprise/4AS/en/os/SRPMS/firefox-3.6.23-1.el4.src.rpm

i386:
firefox-3.6.23-1.el4.i386.rpm
firefox-debuginfo-3.6.23-1.el4.i386.rpm

ia64:
firefox-3.6.23-1.el4.ia64.rpm
firefox-debuginfo-3.6.23-1.el4.ia64.rpm

ppc:
firefox-3.6.23-1.el4.ppc.rpm
firefox-debuginfo-3.6.23-1.el4.ppc.rpm

s390:
firefox-3.6.23-1.el4.s390.rpm
firefox-debuginfo-3.6.23-1.el4.s390.rpm

s390x:
firefox-3.6.23-1.el4.s390x.rpm
firefox-debuginfo-3.6.23-1.el4.s390x.rpm

x86_64:
firefox-3.6.23-1.el4.x86_64.rpm
firefox-debuginfo-3.6.23-1.el4.x86_64.rpm

Red Hat Enterprise Linux Desktop version 4:

Source:
ftp://updates.redhat.com/enterprise/4Desktop/en/os/SRPMS/firefox-3.6.23-1.el4.src.rpm

i386:
firefox-3.6.23-1.el4.i386.rpm
firefox-debuginfo-3.6.23-1.el4.i386.rpm

x86_64:
firefox-3.6.23-1.el4.x86_64.rpm
firefox-debuginfo-3.6.23-1.el4.x86_64.rpm

Red Hat Enterprise Linux ES version 4:

Source:
ftp://updates.redhat.com/enterprise/4ES/en/os/SRPMS/firefox-3.6.23-1.el4.src.rpm

i386:
firefox-3.6.23-1.el4.i386.rpm
firefox-debuginfo-3.6.23-1.el4.i386.rpm

ia64:
firefox-3.6.23-1.el4.ia64.rpm
firefox-debuginfo-3.6.23-1.el4.ia64.rpm

x86_64:
firefox-3.6.23-1.el4.x86_64.rpm
firefox-debuginfo-3.6.23-1.el4.x86_64.rpm

Red Hat Enterprise Linux WS version 4:

Source:
ftp://updates.redhat.com/enterprise/4WS/en/os/SRPMS/firefox-3.6.23-1.el4.src.rpm

i386:
firefox-3.6.23-1.el4.i386.rpm
firefox-debuginfo-3.6.23-1.el4.i386.rpm

ia64:
firefox-3.6.23-1.el4.ia64.rpm
firefox-debuginfo-3.6.23-1.el4.ia64.rpm

x86_64:
firefox-3.6.23-1.el4.x86_64.rpm
firefox-debuginfo-3.6.23-1.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-3.6.23-2.el5_7.src.rpm
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/5Client/en/os/SRPMS/xulrunner-1.9.2.23-1.el5_7.src.rpm

i386:
firefox-3.6.23-2.el5_7.i386.rpm
firefox-debuginfo-3.6.23-2.el5_7.i386.rpm
xulrunner-1.9.2.23-1.el5_7.i386.rpm
xulrunner-debuginfo-1.9.2.23-1.el5_7.i386.rpm

x86_64:
firefox-3.6.23-2.el5_7.i386.rpm
firefox-3.6.23-2.el5_7.x86_64.rpm
firefox-debuginfo-3.6.23-2.el5_7.i386.rpm
firefox-debuginfo-3.6.23-2.el5_7.x86_64.rpm
xulrunner-1.9.2.23-1.el5_7.i386.rpm
xulrunner-1.9.2.23-1.el5_7.x86_64.rpm
xulrunner-debuginfo-1.9.2.23-1.el5_7.i386.rpm
xulrunner-debuginfo-1.9.2.23-1.el5_7.x86_64.rpm

RHEL Desktop Workstation (v. 5 client):

Source:
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/5Client/en/os/SRPMS/xulrunner-1.9.2.23-1.el5_7.src.rpm

i386:
xulrunner-debuginfo-1.9.2.23-1.el5_7.i386.rpm
xulrunner-devel-1.9.2.23-1.el5_7.i386.rpm

x86_64:
xulrunner-debuginfo-1.9.2.23-1.el5_7.i386.rpm
xulrunner-debuginfo-1.9.2.23-1.el5_7.x86_64.rpm
xulrunner-devel-1.9.2.23-1.el5_7.i386.rpm
xulrunner-devel-1.9.2.23-1.el5_7.x86_64.rpm

Red Hat Enterprise Linux (v. 5 server):

Source:
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/5Server/en/os/SRPMS/firefox-3.6.23-2.el5_7.src.rpm
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/5Server/en/os/SRPMS/xulrunner-1.9.2.23-1.el5_7.src.rpm

i386:
firefox-3.6.23-2.el5_7.i386.rpm
firefox-debuginfo-3.6.23-2.el5_7.i386.rpm
xulrunner-1.9.2.23-1.el5_7.i386.rpm
xulrunner-debuginfo-1.9.2.23-1.el5_7.i386.rpm
xulrunner-devel-1.9.2.23-1.el5_7.i386.rpm

ia64:
firefox-3.6.23-2.el5_7.ia64.rpm
firefox-debuginfo-3.6.23-2.el5_7.ia64.rpm
xulrunner-1.9.2.23-1.el5_7.ia64.rpm
xulrunner-debuginfo-1.9.2.23-1.el5_7.ia64.rpm
xulrunner-devel-1.9.2.23-1.el5_7.ia64.rpm

ppc:
firefox-3.6.23-2.el5_7.ppc.rpm
firefox-debuginfo-3.6.23-2.el5_7.ppc.rpm
xulrunner-1.9.2.23-1.el5_7.ppc.rpm
xulrunner-1.9.2.23-1.el5_7.ppc64.rpm
xulrunner-debuginfo-1.9.2.23-1.el5_7.ppc.rpm
xulrunner-debuginfo-1.9.2.23-1.el5_7.ppc64.rpm
xulrunner-devel-1.9.2.23-1.el5_7.ppc.rpm
xulrunner-devel-1.9.2.23-1.el5_7.ppc64.rpm

s390x:
firefox-3.6.23-2.el5_7.s390.rpm
firefox-3.6.23-2.el5_7.s390x.rpm
firefox-debuginfo-3.6.23-2.el5_7.s390.rpm
firefox-debuginfo-3.6.23-2.el5_7.s390x.rpm
xulrunner-1.9.2.23-1.el5_7.s390.rpm
xulrunner-1.9.2.23-1.el5_7.s390x.rpm
xulrunner-debuginfo-1.9.2.23-1.el5_7.s390.rpm
xulrunner-debuginfo-1.9.2.23-1.el5_7.s390x.rpm
xulrunner-devel-1.9.2.23-1.el5_7.s390.rpm
xulrunner-devel-1.9.2.23-1.el5_7.s390x.rpm

x86_64:
firefox-3.6.23-2.el5_7.i386.rpm
firefox-3.6.23-2.el5_7.x86_64.rpm
firefox-debuginfo-3.6.23-2.el5_7.i386.rpm
firefox-debuginfo-3.6.23-2.el5_7.x86_64.rpm
xulrunner-1.9.2.23-1.el5_7.i386.rpm
xulrunner-1.9.2.23-1.el5_7.x86_64.rpm
xulrunner-debuginfo-1.9.2.23-1.el5_7.i386.rpm
xulrunner-debuginfo-1.9.2.23-1.el5_7.x86_64.rpm
xulrunner-devel-1.9.2.23-1.el5_7.i386.rpm
xulrunner-devel-1.9.2.23-1.el5_7.x86_64.rpm

Red Hat Enterprise Linux Desktop (v. 6):

Source:
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/6Client/en/os/SRPMS/firefox-3.6.23-2.el6_1.src.rpm
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/6Client/en/os/SRPMS/xulrunner-1.9.2.23-1.el6_1.1.src.rpm

i386:
firefox-3.6.23-2.el6_1.i686.rpm
firefox-debuginfo-3.6.23-2.el6_1.i686.rpm
xulrunner-1.9.2.23-1.el6_1.1.i686.rpm
xulrunner-debuginfo-1.9.2.23-1.el6_1.1.i686.rpm

x86_64:
firefox-3.6.23-2.el6_1.i686.rpm
firefox-3.6.23-2.el6_1.x86_64.rpm
firefox-debuginfo-3.6.23-2.el6_1.i686.rpm
firefox-debuginfo-3.6.23-2.el6_1.x86_64.rpm
xulrunner-1.9.2.23-1.el6_1.1.i686.rpm
xulrunner-1.9.2.23-1.el6_1.1.x86_64.rpm
xulrunner-debuginfo-1.9.2.23-1.el6_1.1.i686.rpm
xulrunner-debuginfo-1.9.2.23-1.el6_1.1.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-1.9.2.23-1.el6_1.1.src.rpm

i386:
xulrunner-debuginfo-1.9.2.23-1.el6_1.1.i686.rpm
xulrunner-devel-1.9.2.23-1.el6_1.1.i686.rpm

x86_64:
xulrunner-debuginfo-1.9.2.23-1.el6_1.1.i686.rpm
xulrunner-debuginfo-1.9.2.23-1.el6_1.1.x86_64.rpm
xulrunner-devel-1.9.2.23-1.el6_1.1.i686.rpm
xulrunner-devel-1.9.2.23-1.el6_1.1.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-3.6.23-2.el6_1.src.rpm
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/6ComputeNode/en/os/SRPMS/xulrunner-1.9.2.23-1.el6_1.1.src.rpm

x86_64:
firefox-3.6.23-2.el6_1.i686.rpm
firefox-3.6.23-2.el6_1.x86_64.rpm
firefox-debuginfo-3.6.23-2.el6_1.i686.rpm
firefox-debuginfo-3.6.23-2.el6_1.x86_64.rpm
xulrunner-1.9.2.23-1.el6_1.1.i686.rpm
xulrunner-1.9.2.23-1.el6_1.1.x86_64.rpm
xulrunner-debuginfo-1.9.2.23-1.el6_1.1.i686.rpm
xulrunner-debuginfo-1.9.2.23-1.el6_1.1.x86_64.rpm
xulrunner-devel-1.9.2.23-1.el6_1.1.i686.rpm
xulrunner-devel-1.9.2.23-1.el6_1.1.x86_64.rpm

Red Hat Enterprise Linux Server (v. 6):

Source:
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/6Server/en/os/SRPMS/firefox-3.6.23-2.el6_1.src.rpm
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/6Server/en/os/SRPMS/xulrunner-1.9.2.23-1.el6_1.1.src.rpm

i386:
firefox-3.6.23-2.el6_1.i686.rpm
firefox-debuginfo-3.6.23-2.el6_1.i686.rpm
xulrunner-1.9.2.23-1.el6_1.1.i686.rpm
xulrunner-debuginfo-1.9.2.23-1.el6_1.1.i686.rpm

ppc64:
firefox-3.6.23-2.el6_1.ppc.rpm
firefox-3.6.23-2.el6_1.ppc64.rpm
firefox-debuginfo-3.6.23-2.el6_1.ppc.rpm
firefox-debuginfo-3.6.23-2.el6_1.ppc64.rpm
xulrunner-1.9.2.23-1.el6_1.1.ppc.rpm
xulrunner-1.9.2.23-1.el6_1.1.ppc64.rpm
xulrunner-debuginfo-1.9.2.23-1.el6_1.1.ppc.rpm
xulrunner-debuginfo-1.9.2.23-1.el6_1.1.ppc64.rpm

s390x:
firefox-3.6.23-2.el6_1.s390.rpm
firefox-3.6.23-2.el6_1.s390x.rpm
firefox-debuginfo-3.6.23-2.el6_1.s390.rpm
firefox-debuginfo-3.6.23-2.el6_1.s390x.rpm
xulrunner-1.9.2.23-1.el6_1.1.s390.rpm
xulrunner-1.9.2.23-1.el6_1.1.s390x.rpm
xulrunner-debuginfo-1.9.2.23-1.el6_1.1.s390.rpm
xulrunner-debuginfo-1.9.2.23-1.el6_1.1.s390x.rpm

x86_64:
firefox-3.6.23-2.el6_1.i686.rpm
firefox-3.6.23-2.el6_1.x86_64.rpm
firefox-debuginfo-3.6.23-2.el6_1.i686.rpm
firefox-debuginfo-3.6.23-2.el6_1.x86_64.rpm
xulrunner-1.9.2.23-1.el6_1.1.i686.rpm
xulrunner-1.9.2.23-1.el6_1.1.x86_64.rpm
xulrunner-debuginfo-1.9.2.23-1.el6_1.1.i686.rpm
xulrunner-debuginfo-1.9.2.23-1.el6_1.1.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-1.9.2.23-1.el6_1.1.src.rpm

i386:
xulrunner-debuginfo-1.9.2.23-1.el6_1.1.i686.rpm
xulrunner-devel-1.9.2.23-1.el6_1.1.i686.rpm

ppc64:
xulrunner-debuginfo-1.9.2.23-1.el6_1.1.ppc.rpm
xulrunner-debuginfo-1.9.2.23-1.el6_1.1.ppc64.rpm
xulrunner-devel-1.9.2.23-1.el6_1.1.ppc.rpm
xulrunner-devel-1.9.2.23-1.el6_1.1.ppc64.rpm

s390x:
xulrunner-debuginfo-1.9.2.23-1.el6_1.1.s390.rpm
xulrunner-debuginfo-1.9.2.23-1.el6_1.1.s390x.rpm
xulrunner-devel-1.9.2.23-1.el6_1.1.s390.rpm
xulrunner-devel-1.9.2.23-1.el6_1.1.s390x.rpm

x86_64:
xulrunner-debuginfo-1.9.2.23-1.el6_1.1.i686.rpm
xulrunner-debuginfo-1.9.2.23-1.el6_1.1.x86_64.rpm
xulrunner-devel-1.9.2.23-1.el6_1.1.i686.rpm
xulrunner-devel-1.9.2.23-1.el6_1.1.x86_64.rpm

Red Hat Enterprise Linux Workstation (v. 6):

Source:
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/6Workstation/en/os/SRPMS/firefox-3.6.23-2.el6_1.src.rpm
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/6Workstation/en/os/SRPMS/xulrunner-1.9.2.23-1.el6_1.1.src.rpm

i386:
firefox-3.6.23-2.el6_1.i686.rpm
firefox-debuginfo-3.6.23-2.el6_1.i686.rpm
xulrunner-1.9.2.23-1.el6_1.1.i686.rpm
xulrunner-debuginfo-1.9.2.23-1.el6_1.1.i686.rpm

x86_64:
firefox-3.6.23-2.el6_1.i686.rpm
firefox-3.6.23-2.el6_1.x86_64.rpm
firefox-debuginfo-3.6.23-2.el6_1.i686.rpm
firefox-debuginfo-3.6.23-2.el6_1.x86_64.rpm
xulrunner-1.9.2.23-1.el6_1.1.i686.rpm
xulrunner-1.9.2.23-1.el6_1.1.x86_64.rpm
xulrunner-debuginfo-1.9.2.23-1.el6_1.1.i686.rpm
xulrunner-debuginfo-1.9.2.23-1.el6_1.1.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-1.9.2.23-1.el6_1.1.src.rpm

i386:
xulrunner-debuginfo-1.9.2.23-1.el6_1.1.i686.rpm
xulrunner-devel-1.9.2.23-1.el6_1.1.i686.rpm

x86_64:
xulrunner-debuginfo-1.9.2.23-1.el6_1.1.i686.rpm
xulrunner-debuginfo-1.9.2.23-1.el6_1.1.x86_64.rpm
xulrunner-devel-1.9.2.23-1.el6_1.1.i686.rpm
xulrunner-devel-1.9.2.23-1.el6_1.1.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-2011-2372.html
https://www.redhat.com/security/data/cve/CVE-2011-2995.html
https://www.redhat.com/security/data/cve/CVE-2011-2998.html
https://www.redhat.com/security/data/cve/CVE-2011-2999.html
https://www.redhat.com/security/data/cve/CVE-2011-3000.html
https://access.redhat.com/security/updates/classification/#critical
http://www.mozilla.org/security/known-vulnerabilities/firefox36.html#firefox3.6.23

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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