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Liebe Kolleginnen und Kollegen,
soeben erreichte uns nachfolgendes RedHat Security Advisory. Wir geben
diese Informationen unveraendert an Sie weiter.
Das KDE SVG Framework wird u.a. in Apple Safari, Google Chrome und KDE
Konqueror sowie anderen KDE Grafikanwendungen verwendet.
CVE-2009-0945 – Schwachstelle in der KSVG Methode insertItemBefore()
Die Methode insertItemBefore() des KDE SVG Frameworks (KSVG) kann dazu
gebracht werden, auf Elemente ausserhalb des Arrays zuzugreifen, indem
ein negativer Index in den folgenden Objekten einer SVGPathList
Datenstruktur angegeben wird: SVGTransformList, SVGStringList,
SVGNumberList, SVGPathSegList, SVGPointList, oder SVGLengthList.
Angreifer koenenn diese Schwachstelle dazu ausnutzen, beliebigen Code
mit den Rechten des Benutzers der Anwendung auszufuehren, die ein
entsprechend aufgebautes SVG Bild oeffnet.
CVE-2009-1709 – Schwachstelle in KSVG bzgl. Animation Elementen
Das KDE SVG Framework kann auf einen bereits freigegebenen Zeiger
erneut zugreifen, wenn ein SVG Animation Element ausgewertet wird, was
dazu fuehrt, dass Speicherstrukturen auf dem Heap ueberschrieben
werden. Angreifer koenenn diese Schwachstelle dazu ausnutzen,
beliebigen Code mit den Rechten des Benutzers der Anwendung
auszufuehren, die ein entsprechend aufgebautes SVG Bild oeffnet.
Betroffen sind die folgenden Software Pakete und Plattformen:
Paket kdegraphics
Red Hat Enterprise Linux Desktop (v. 5 client) – i386, x86_64
RHEL Desktop Workstation (v. 5 client) – i386, x86_64
RHEL Optional Productivity Applications (v. 5 server) – i386, x86_64
Vom Hersteller werden ueberarbeitete Pakete zur Verfuegung gestellt.
Hersteller Advisory:
https://rhn.redhat.com/errata/RHSA-2009-1130.html
(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,
Klaus Moeller, DFN-CERT
– —
Dipl. Inform. Klaus Moeller (Incident Response Team)
Phone: +49 40 808077-555, Fax: +49 40 808077-556
DFN-CERT Services GmbH, https://www.dfn-cert.de, Phone +49 40 808077-555
Sitz / Register: Hamburg, AG Hamburg, HRB 88805, Ust-IdNr.: DE 232129737
Sachsenstrase 5, 20097 Hamburg/Germany, CEO: Dr. Klaus-Peter Kossakowski
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=====================================================================
Red Hat Security Advisory
Synopsis: Critical: kdegraphics security update
Advisory ID: RHSA-2009:1130-01
Product: Red Hat Enterprise Linux
Advisory URL: https://rhn.redhat.com/errata/RHSA-2009-1130.html
Issue date: 2009-06-25
CVE Names: CVE-2009-0945 CVE-2009-1709
=====================================================================
1. Summary:
Updated kdegraphics packages that fix two 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
RHEL Optional Productivity Applications (v. 5 server) – i386, x86_64
3. Description:
The kdegraphics packages contain applications for the K Desktop Environment
(KDE). Scalable Vector Graphics (SVG) is an XML-based language to describe
vector images. KSVG is a framework aimed at implementing the latest W3C SVG
specifications.
A use-after-free flaw was found in the KDE KSVG animation element
implementation. A remote attacker could create a specially-crafted SVG
image, which once opened by an unsuspecting user, could cause a denial of
service (Konqueror crash) or, potentially, execute arbitrary code with the
privileges of the user running Konqueror. (CVE-2009-1709)
A NULL pointer dereference flaw was found in the KDE, KSVG SVGList
interface implementation. A remote attacker could create a
specially-crafted SVG image, which once opened by an unsuspecting user,
would cause memory corruption, leading to a denial of service (Konqueror
crash). (CVE-2009-0945)
All users of kdegraphics should upgrade to these updated packages, which
contain backported patches to correct these issues. The desktop must be
restarted (log out, then log back in) for this update to take effect.
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/docs/DOC-11259
5. Bugs fixed (http://bugzilla.redhat.com/):
506246 – CVE-2009-1709 kdegraphics: KSVG Pointer use-after-free error in the SVG animation element (DoS, ACE)
506703 – CVE-2009-0945 kdegraphics: KSVG NULL-pointer dereference in the SVGList interface implementation (ACE)
6. Package List:
Red Hat Enterprise Linux Desktop (v. 5 client):
Source:
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/5Client/en/os/SRPMS/kdegraphics-3.5.4-13.el5_3.src.rpm
i386:
kdegraphics-3.5.4-13.el5_3.i386.rpm
kdegraphics-debuginfo-3.5.4-13.el5_3.i386.rpm
x86_64:
kdegraphics-3.5.4-13.el5_3.x86_64.rpm
kdegraphics-debuginfo-3.5.4-13.el5_3.x86_64.rpm
RHEL Desktop Workstation (v. 5 client):
Source:
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/5Client/en/os/SRPMS/kdegraphics-3.5.4-13.el5_3.src.rpm
i386:
kdegraphics-debuginfo-3.5.4-13.el5_3.i386.rpm
kdegraphics-devel-3.5.4-13.el5_3.i386.rpm
x86_64:
kdegraphics-debuginfo-3.5.4-13.el5_3.i386.rpm
kdegraphics-debuginfo-3.5.4-13.el5_3.x86_64.rpm
kdegraphics-devel-3.5.4-13.el5_3.i386.rpm
kdegraphics-devel-3.5.4-13.el5_3.x86_64.rpm
RHEL Optional Productivity Applications (v. 5 server):
Source:
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/5Server/en/os/SRPMS/kdegraphics-3.5.4-13.el5_3.src.rpm
i386:
kdegraphics-3.5.4-13.el5_3.i386.rpm
kdegraphics-debuginfo-3.5.4-13.el5_3.i386.rpm
kdegraphics-devel-3.5.4-13.el5_3.i386.rpm
x86_64:
kdegraphics-3.5.4-13.el5_3.x86_64.rpm
kdegraphics-debuginfo-3.5.4-13.el5_3.i386.rpm
kdegraphics-debuginfo-3.5.4-13.el5_3.x86_64.rpm
kdegraphics-devel-3.5.4-13.el5_3.i386.rpm
kdegraphics-devel-3.5.4-13.el5_3.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-2009-0945
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2009-1709
http://www.redhat.com/security/updates/classification/#critical
8. Contact:
The Red Hat security contact is
details at https://www.redhat.com/security/team/contact/
Copyright 2009 Red Hat, Inc.
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