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Liebe Kolleginnen und Kollegen,
soeben erreichte uns nachfolgendes RedHat Security Advisory. Wir geben
diese Informationen unveraendert an Sie weiter.
Mozilla Thunderbird verwendet die Mozilla Browser Engine zum Rendern von
HTML-Inhalten.
CVE-2011-2998 – Integer-Underflow Schwachstelle in der Mozilla Browser
Engine
Umfangreiche regulaere Ausdruecke in JavaScript koennen zu einem Integer
Underflow und zum Zugriff auf bereits freigegebenen Speicher in der
Mozilla Browser Engine fuehren. Dies erlaubt einem entfernten Angreifer
mithilfe einer praeparierten Webseite einen Absturz der Anwendung
herbeizufuehren (Denial of Service) oder schlimmstenfalls beliebige
Befehle im Kontext des aktuellen Benutzers zur Ausfuehrung zu bringen.
CVE-2011-2999 – Unsicher Behandlung von Frame-Objekten in der Mozilla
Browser Engine
Frame-Objekte in der Mozilla Browser Engine werden auf unsichere Weise
behandelt. Wird ein solches Objekt “location” genannt kann dies zu
Verwechselungen mit dem Wert von “window.location” in Plugins fuehren.
Dies erlaubt einem Angreifer die Same Origin Policy zu verletzen und
dazu fuehren, dass ein Plugin unerlaubt auf andere Seiten oder das
lokale Dateisystem zugreift.
Betroffen sind die folgenden Software Pakete und Plattformen:
Paket thunderbird
RHEL Optional Productivity Applications (v. 5 server) – i386, 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 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
Vom Hersteller werden ueberarbeitete Pakete zur Verfuegung gestellt.
(c) der deutschen Zusammenfassung bei DFN-CERT Services GmbH; die
Verbreitung, auch auszugsweise, ist nur unter Hinweis auf den Urheber,
DFN-CERT Services GmbH, und nur zu nicht kommerziellen Zwecken
gestattet.
Mit freundlichen Gruessen,
Matthias Braeck
– —
Matthias Braeck (Incident Response Team)
DFN-CERT Services GmbH, https://www.dfn-cert.de, Phone +49 40 808077-590
Sitz / Register: Hamburg, AG Hamburg, HRB 88805, Ust-IdNr.: DE 232129737
Sachsenstrasse 5, 20097 Hamburg/Germany, CEO: Dr. Klaus-Peter Kossakowski
Automatische Warnmeldungen: https://www.cert.dfn.de/autowarn
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=====================================================================
Red Hat Security Advisory
Synopsis: Critical: thunderbird security update
Advisory ID: RHSA-2011:1343-01
Product: Red Hat Enterprise Linux
Advisory URL: https://rhn.redhat.com/errata/RHSA-2011-1343.html
Issue date: 2011-09-28
CVE Names: CVE-2011-2998 CVE-2011-2999
=====================================================================
1. Summary:
An updated thunderbird package that fixes two security issues is now
available for Red Hat Enterprise Linux 4 and 5.
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 Optional Productivity Applications (v. 5 server) – i386, 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 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. Description:
Mozilla Thunderbird is a standalone mail and newsgroup client.
A flaw was found in the way Thunderbird 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 Thunderbird handled large
JavaScript regular expressions. An HTML mail message containing malicious
JavaScript could cause Thunderbird to access already freed memory, causing
Thunderbird to crash or, potentially, execute arbitrary code with the
privileges of the user running Thunderbird. (CVE-2011-2998)
All Thunderbird users should upgrade to this updated package, which
resolves these issues. All running instances of Thunderbird must be
restarted for the update 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/):
741904 – CVE-2011-2999 Mozilla: XSS via plugins and shadowed window.location object (MFSA 2011-38)
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/thunderbird-1.5.0.12-44.el4.src.rpm
i386:
thunderbird-1.5.0.12-44.el4.i386.rpm
thunderbird-debuginfo-1.5.0.12-44.el4.i386.rpm
ia64:
thunderbird-1.5.0.12-44.el4.ia64.rpm
thunderbird-debuginfo-1.5.0.12-44.el4.ia64.rpm
ppc:
thunderbird-1.5.0.12-44.el4.ppc.rpm
thunderbird-debuginfo-1.5.0.12-44.el4.ppc.rpm
s390:
thunderbird-1.5.0.12-44.el4.s390.rpm
thunderbird-debuginfo-1.5.0.12-44.el4.s390.rpm
s390x:
thunderbird-1.5.0.12-44.el4.s390x.rpm
thunderbird-debuginfo-1.5.0.12-44.el4.s390x.rpm
x86_64:
thunderbird-1.5.0.12-44.el4.x86_64.rpm
thunderbird-debuginfo-1.5.0.12-44.el4.x86_64.rpm
Red Hat Enterprise Linux Desktop version 4:
Source:
ftp://updates.redhat.com/enterprise/4Desktop/en/os/SRPMS/thunderbird-1.5.0.12-44.el4.src.rpm
i386:
thunderbird-1.5.0.12-44.el4.i386.rpm
thunderbird-debuginfo-1.5.0.12-44.el4.i386.rpm
x86_64:
thunderbird-1.5.0.12-44.el4.x86_64.rpm
thunderbird-debuginfo-1.5.0.12-44.el4.x86_64.rpm
Red Hat Enterprise Linux ES version 4:
Source:
ftp://updates.redhat.com/enterprise/4ES/en/os/SRPMS/thunderbird-1.5.0.12-44.el4.src.rpm
i386:
thunderbird-1.5.0.12-44.el4.i386.rpm
thunderbird-debuginfo-1.5.0.12-44.el4.i386.rpm
ia64:
thunderbird-1.5.0.12-44.el4.ia64.rpm
thunderbird-debuginfo-1.5.0.12-44.el4.ia64.rpm
x86_64:
thunderbird-1.5.0.12-44.el4.x86_64.rpm
thunderbird-debuginfo-1.5.0.12-44.el4.x86_64.rpm
Red Hat Enterprise Linux WS version 4:
Source:
ftp://updates.redhat.com/enterprise/4WS/en/os/SRPMS/thunderbird-1.5.0.12-44.el4.src.rpm
i386:
thunderbird-1.5.0.12-44.el4.i386.rpm
thunderbird-debuginfo-1.5.0.12-44.el4.i386.rpm
ia64:
thunderbird-1.5.0.12-44.el4.ia64.rpm
thunderbird-debuginfo-1.5.0.12-44.el4.ia64.rpm
x86_64:
thunderbird-1.5.0.12-44.el4.x86_64.rpm
thunderbird-debuginfo-1.5.0.12-44.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/thunderbird-2.0.0.24-26.el5_7.src.rpm
i386:
thunderbird-2.0.0.24-26.el5_7.i386.rpm
thunderbird-debuginfo-2.0.0.24-26.el5_7.i386.rpm
x86_64:
thunderbird-2.0.0.24-26.el5_7.x86_64.rpm
thunderbird-debuginfo-2.0.0.24-26.el5_7.x86_64.rpm
RHEL Optional Productivity Applications (v. 5 server):
Source:
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/5Server/en/os/SRPMS/thunderbird-2.0.0.24-26.el5_7.src.rpm
i386:
thunderbird-2.0.0.24-26.el5_7.i386.rpm
thunderbird-debuginfo-2.0.0.24-26.el5_7.i386.rpm
x86_64:
thunderbird-2.0.0.24-26.el5_7.x86_64.rpm
thunderbird-debuginfo-2.0.0.24-26.el5_7.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-2011-2998.html
https://www.redhat.com/security/data/cve/CVE-2011-2999.html
https://access.redhat.com/security/updates/classification/#critical
8. Contact:
The Red Hat security contact is
details at https://access.redhat.com/security/team/contact/
Copyright 2011 Red Hat, Inc.
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