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Category:   Application (Web Browser)  >   Mozilla Firefox Vendors:   Mozilla.org
(Red Hat Issues Fix) Mozilla Firefox CSS Reference Counter Bug Lets Remote Users Execute Arbitrary Code
SecurityTracker Alert ID:  1020508
SecurityTracker URL:  http://securitytracker.com/id/1020508
CVE Reference:   CVE-2008-2785   (Links to External Site)
Date:  Jul 16 2008
Impact:   Execution of arbitrary code via network, User access via network
Fix Available:  Yes  Vendor Confirmed:  Yes  
Version(s): 2.x, 3.0
Description:   A vulnerability was reported in Mozilla Firefox. A remote user can cause arbitrary code to be executed on the target user's system.

A remote user can create a large number of references to a common CSS object to overflow the CSSValue array data structure. The browser will attempt to free the object while it is still in use, which may allow arbitrary code to be executed. The code will run with the privileges of the target user.

TippingPoint reported this vulnerability.

Impact:   A remote user can cause arbitrary code to be executed on the target user's system.
Solution:   Red Hat has released a fix.

The Red Hat advisory is available at:

https://rhn.redhat.com/errata/RHSA-2008-0597.html

Vendor URL:  www.mozilla.org/security/announce/2008/mfsa2008-34.html (Links to External Site)
Cause:   Boundary error
Underlying OS:  Linux (Red Hat Enterprise)
Underlying OS Comments:  5

Message History:   This archive entry is a follow-up to the message listed below.
Jun 20 2008 Mozilla Firefox CSS Reference Counter Bug Lets Remote Users Execute Arbitrary Code



 Source Message Contents

Subject:  [RHSA-2008:0597-01] Critical: firefox security update


-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

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

Synopsis:          Critical: firefox security update
Advisory ID:       RHSA-2008:0597-01
Product:           Red Hat Enterprise Linux
Advisory URL:      https://rhn.redhat.com/errata/RHSA-2008-0597.html
Issue date:        2008-07-16
CVE Names:         CVE-2008-2785 CVE-2008-2933 
=====================================================================

1. Summary:

Updated firefox packages that fix various security issues are now available
for Red Hat Enterprise Linux 5.

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 Desktop (v. 5 client) - i386, x86_64
RHEL Desktop Workstation (v. 5 client) - i386, x86_64
Red Hat Enterprise Linux (v. 5 server) - i386, ia64, ppc, s390x, x86_64

3. Description:

Mozilla Firefox is an open source Web browser.

An integer overflow flaw was found in the way Firefox displayed certain web
content. A malicious web site could cause Firefox to crash, or execute
arbitrary code with the permissions of the user running Firefox.
(CVE-2008-2785)

A flaw was found in the way Firefox handled certain command line URLs. If
another application passed Firefox a malformed URL, it could result in
Firefox executing local malicious content with chrome privileges.
(CVE-2008-2933)

All firefox users should upgrade to these updated packages, which contain
Firefox 3.0.1 that corrects these issues.

4. Solution:

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

This update is available via Red Hat Network.  Details on how to use
the Red Hat Network to apply this update are available at
http://kbase.redhat.com/faq/FAQ_58_10188

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

452204 - CVE-2008-2785 mozilla: CSS reference counter overflow (ZDI-CAN-349)
454697 - CVE-2008-2933 Firefox command line URL launches multi-tabs

6. Package List:

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

Source:
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/5Client/en/os/SRPMS/devhelp-0.12-18.el5.src.rpm
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/5Client/en/os/SRPMS/firefox-3.0.1-1.el5.src.rpm
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/5Client/en/os/SRPMS/xulrunner-1.9.0.1-1.el5.src.rpm
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/5Client/en/os/SRPMS/yelp-2.16.0-20.el5.src.rpm

i386:
devhelp-0.12-18.el5.i386.rpm
devhelp-debuginfo-0.12-18.el5.i386.rpm
firefox-3.0.1-1.el5.i386.rpm
firefox-debuginfo-3.0.1-1.el5.i386.rpm
xulrunner-1.9.0.1-1.el5.i386.rpm
xulrunner-debuginfo-1.9.0.1-1.el5.i386.rpm
yelp-2.16.0-20.el5.i386.rpm
yelp-debuginfo-2.16.0-20.el5.i386.rpm

x86_64:
devhelp-0.12-18.el5.i386.rpm
devhelp-0.12-18.el5.x86_64.rpm
devhelp-debuginfo-0.12-18.el5.i386.rpm
devhelp-debuginfo-0.12-18.el5.x86_64.rpm
firefox-3.0.1-1.el5.i386.rpm
firefox-3.0.1-1.el5.x86_64.rpm
firefox-debuginfo-3.0.1-1.el5.i386.rpm
firefox-debuginfo-3.0.1-1.el5.x86_64.rpm
xulrunner-1.9.0.1-1.el5.i386.rpm
xulrunner-1.9.0.1-1.el5.x86_64.rpm
xulrunner-debuginfo-1.9.0.1-1.el5.i386.rpm
xulrunner-debuginfo-1.9.0.1-1.el5.x86_64.rpm
yelp-2.16.0-20.el5.x86_64.rpm
yelp-debuginfo-2.16.0-20.el5.x86_64.rpm

RHEL Desktop Workstation (v. 5 client):

Source:
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/5Client/en/os/SRPMS/devhelp-0.12-18.el5.src.rpm
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/5Client/en/os/SRPMS/xulrunner-1.9.0.1-1.el5.src.rpm

i386:
devhelp-debuginfo-0.12-18.el5.i386.rpm
devhelp-devel-0.12-18.el5.i386.rpm
xulrunner-debuginfo-1.9.0.1-1.el5.i386.rpm
xulrunner-devel-1.9.0.1-1.el5.i386.rpm
xulrunner-devel-unstable-1.9.0.1-1.el5.i386.rpm

x86_64:
devhelp-debuginfo-0.12-18.el5.i386.rpm
devhelp-debuginfo-0.12-18.el5.x86_64.rpm
devhelp-devel-0.12-18.el5.i386.rpm
devhelp-devel-0.12-18.el5.x86_64.rpm
xulrunner-debuginfo-1.9.0.1-1.el5.i386.rpm
xulrunner-debuginfo-1.9.0.1-1.el5.x86_64.rpm
xulrunner-devel-1.9.0.1-1.el5.i386.rpm
xulrunner-devel-1.9.0.1-1.el5.x86_64.rpm
xulrunner-devel-unstable-1.9.0.1-1.el5.x86_64.rpm

Red Hat Enterprise Linux (v. 5 server):

Source:
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/5Server/en/os/SRPMS/devhelp-0.12-18.el5.src.rpm
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/5Server/en/os/SRPMS/firefox-3.0.1-1.el5.src.rpm
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/5Server/en/os/SRPMS/xulrunner-1.9.0.1-1.el5.src.rpm
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/5Server/en/os/SRPMS/yelp-2.16.0-20.el5.src.rpm

i386:
devhelp-0.12-18.el5.i386.rpm
devhelp-debuginfo-0.12-18.el5.i386.rpm
devhelp-devel-0.12-18.el5.i386.rpm
firefox-3.0.1-1.el5.i386.rpm
firefox-debuginfo-3.0.1-1.el5.i386.rpm
xulrunner-1.9.0.1-1.el5.i386.rpm
xulrunner-debuginfo-1.9.0.1-1.el5.i386.rpm
xulrunner-devel-1.9.0.1-1.el5.i386.rpm
xulrunner-devel-unstable-1.9.0.1-1.el5.i386.rpm
yelp-2.16.0-20.el5.i386.rpm
yelp-debuginfo-2.16.0-20.el5.i386.rpm

ia64:
devhelp-0.12-18.el5.ia64.rpm
devhelp-debuginfo-0.12-18.el5.ia64.rpm
devhelp-devel-0.12-18.el5.ia64.rpm
firefox-3.0.1-1.el5.ia64.rpm
firefox-debuginfo-3.0.1-1.el5.ia64.rpm
xulrunner-1.9.0.1-1.el5.ia64.rpm
xulrunner-debuginfo-1.9.0.1-1.el5.ia64.rpm
xulrunner-devel-1.9.0.1-1.el5.ia64.rpm
xulrunner-devel-unstable-1.9.0.1-1.el5.ia64.rpm
yelp-2.16.0-20.el5.ia64.rpm
yelp-debuginfo-2.16.0-20.el5.ia64.rpm

ppc:
devhelp-0.12-18.el5.ppc.rpm
devhelp-debuginfo-0.12-18.el5.ppc.rpm
devhelp-devel-0.12-18.el5.ppc.rpm
firefox-3.0.1-1.el5.ppc.rpm
firefox-debuginfo-3.0.1-1.el5.ppc.rpm
xulrunner-1.9.0.1-1.el5.ppc.rpm
xulrunner-1.9.0.1-1.el5.ppc64.rpm
xulrunner-debuginfo-1.9.0.1-1.el5.ppc.rpm
xulrunner-debuginfo-1.9.0.1-1.el5.ppc64.rpm
xulrunner-devel-1.9.0.1-1.el5.ppc.rpm
xulrunner-devel-1.9.0.1-1.el5.ppc64.rpm
xulrunner-devel-unstable-1.9.0.1-1.el5.ppc.rpm
yelp-2.16.0-20.el5.ppc.rpm
yelp-debuginfo-2.16.0-20.el5.ppc.rpm

s390x:
devhelp-0.12-18.el5.s390.rpm
devhelp-0.12-18.el5.s390x.rpm
devhelp-debuginfo-0.12-18.el5.s390.rpm
devhelp-debuginfo-0.12-18.el5.s390x.rpm
devhelp-devel-0.12-18.el5.s390.rpm
devhelp-devel-0.12-18.el5.s390x.rpm
firefox-3.0.1-1.el5.s390.rpm
firefox-3.0.1-1.el5.s390x.rpm
firefox-debuginfo-3.0.1-1.el5.s390.rpm
firefox-debuginfo-3.0.1-1.el5.s390x.rpm
xulrunner-1.9.0.1-1.el5.s390.rpm
xulrunner-1.9.0.1-1.el5.s390x.rpm
xulrunner-debuginfo-1.9.0.1-1.el5.s390.rpm
xulrunner-debuginfo-1.9.0.1-1.el5.s390x.rpm
xulrunner-devel-1.9.0.1-1.el5.s390.rpm
xulrunner-devel-1.9.0.1-1.el5.s390x.rpm
xulrunner-devel-unstable-1.9.0.1-1.el5.s390x.rpm
yelp-2.16.0-20.el5.s390x.rpm
yelp-debuginfo-2.16.0-20.el5.s390x.rpm

x86_64:
devhelp-0.12-18.el5.i386.rpm
devhelp-0.12-18.el5.x86_64.rpm
devhelp-debuginfo-0.12-18.el5.i386.rpm
devhelp-debuginfo-0.12-18.el5.x86_64.rpm
devhelp-devel-0.12-18.el5.i386.rpm
devhelp-devel-0.12-18.el5.x86_64.rpm
firefox-3.0.1-1.el5.i386.rpm
firefox-3.0.1-1.el5.x86_64.rpm
firefox-debuginfo-3.0.1-1.el5.i386.rpm
firefox-debuginfo-3.0.1-1.el5.x86_64.rpm
xulrunner-1.9.0.1-1.el5.i386.rpm
xulrunner-1.9.0.1-1.el5.x86_64.rpm
xulrunner-debuginfo-1.9.0.1-1.el5.i386.rpm
xulrunner-debuginfo-1.9.0.1-1.el5.x86_64.rpm
xulrunner-devel-1.9.0.1-1.el5.i386.rpm
xulrunner-devel-1.9.0.1-1.el5.x86_64.rpm
xulrunner-devel-unstable-1.9.0.1-1.el5.x86_64.rpm
yelp-2.16.0-20.el5.x86_64.rpm
yelp-debuginfo-2.16.0-20.el5.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=CVE-2008-2785
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-2933
http://www.redhat.com/security/updates/classification/#critical

8. Contact:

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

Copyright 2008 Red Hat, Inc.
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