[RedHat] Schwachstellen in der Bibliothek libxml2

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Liebe Kolleginnen und Kollegen,

soeben erreichte uns nachfolgendes RedHat Security Advisory. Wir geben
diese Informationen unveraendert an Sie weiter.

CVE-2009-2414 – Buffer Overflow in der Bibliothek libxml2 beim Parsen
von DTD Definitionen fuer Root Elemente

Beim Parsen der Definitionen fuer das XML Root Element in einer
Document Type Definition (DTD) laesst sich in der Bibliothek libxml2
ein Buffer Overflow ausloesen. Ein Angreifer kann diese Schwachstelle
dazu ausnutzen, die Anwendung zum Absturz zu bringen, die ein
entsprechend aufgebautes XML-Dokument liest (Denial of Service).

CVE-2009-2416 – Benutzung freigegebener Zeiger in der Bibliothek libxml2
beim Parsen von Attributen

Beim Parsen von Notation und Enumeration Attributtypen kann es in der
Bibliothek libxml2 zur Referenzierung eines bereits freigegebenen
Zeigers kommen (use after free). Ein Angreifer kann diese
Schwachstelle dazu ausnutzen, die Anwendung zum Absturz zu bringen,
die ein entsprechend aufgebautes XML-Dokument liest (Denial of
Service).

Betroffen sind die folgenden Software Pakete und Plattformen:

Paket libxml and libxml2

Red Hat Enterprise Linux AS version 3 – i386, ia64, ppc, s390, s390x,
x86_64
Red Hat Desktop version 3 – i386, x86_64
Red Hat Enterprise Linux ES version 3 – i386, ia64, x86_64
Red Hat Enterprise Linux WS version 3 – i386, ia64, x86_64
Red Hat Enterprise Linux AS version 4 – i386, ia64, ppc, s390, s390x,
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
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

Vom Hersteller werden ueberarbeitete Pakete zur Verfuegung gestellt.

Hersteller Advisory:
https://rhn.redhat.com/errata/RHSA-2009-1206.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

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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: Moderate: libxml and libxml2 security update
Advisory ID: RHSA-2009:1206-01
Product: Red Hat Enterprise Linux
Advisory URL: https://rhn.redhat.com/errata/RHSA-2009-1206.html
Issue date: 2009-08-10
CVE Names: CVE-2009-2414 CVE-2009-2416
=====================================================================

1. Summary:

Updated libxml and libxml2 packages that fix multiple security issues are
now available for Red Hat Enterprise Linux 3, 4, and 5.

This update has been rated as having moderate security impact by the Red
Hat Security Response Team.

2. Relevant releases/architectures:

Red Hat Enterprise Linux AS version 3 – i386, ia64, ppc, s390, s390x, x86_64
Red Hat Desktop version 3 – i386, x86_64
Red Hat Enterprise Linux ES version 3 – i386, ia64, x86_64
Red Hat Enterprise Linux WS version 3 – i386, ia64, x86_64
Red Hat Enterprise Linux AS version 4 – i386, ia64, ppc, s390, s390x, 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
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:

libxml is a library for parsing and manipulating XML files. A Document Type
Definition (DTD) defines the legal syntax (and also which elements can be
used) for certain types of files, such as XML files.

A stack overflow flaw was found in the way libxml processes the root XML
document element definition in a DTD. A remote attacker could provide a
specially-crafted XML file, which once opened by a local, unsuspecting
user, would lead to denial of service (application crash). (CVE-2009-2414)

Multiple use-after-free flaws were found in the way libxml parses the
Notation and Enumeration attribute types. A remote attacker could provide
a specially-crafted XML file, which once opened by a local, unsuspecting
user, would lead to denial of service (application crash). (CVE-2009-2416)

Users should upgrade to these updated packages, which contain backported
patches to resolve these issues. For Red Hat Enterprise Linux 3, they
contain backported patches for the libxml and libxml2 packages. For Red Hat
Enterprise Linux 4 and 5, they contain backported patches for the libxml2
packages. 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/):

515195 – CVE-2009-2414 libxml, libxml2, mingw32-libxml2: Stack overflow by parsing root XML element DTD definition
515205 – CVE-2009-2416 libxml, libxml2, mingw32-libxml2: Pointer use-after-free flaws by parsing Notation and Enumeration attribute types

6. Package List:

Red Hat Enterprise Linux AS version 3:

Source:
ftp://updates.redhat.com/enterprise/3AS/en/os/SRPMS/libxml-1.8.17-9.3.src.rpm
ftp://updates.redhat.com/enterprise/3AS/en/os/SRPMS/libxml2-2.5.10-15.src.rpm

i386:
libxml-1.8.17-9.3.i386.rpm
libxml-debuginfo-1.8.17-9.3.i386.rpm
libxml-devel-1.8.17-9.3.i386.rpm
libxml2-2.5.10-15.i386.rpm
libxml2-debuginfo-2.5.10-15.i386.rpm
libxml2-devel-2.5.10-15.i386.rpm
libxml2-python-2.5.10-15.i386.rpm

ia64:
libxml-1.8.17-9.3.i386.rpm
libxml-1.8.17-9.3.ia64.rpm
libxml-debuginfo-1.8.17-9.3.i386.rpm
libxml-debuginfo-1.8.17-9.3.ia64.rpm
libxml-devel-1.8.17-9.3.ia64.rpm
libxml2-2.5.10-15.i386.rpm
libxml2-2.5.10-15.ia64.rpm
libxml2-debuginfo-2.5.10-15.i386.rpm
libxml2-debuginfo-2.5.10-15.ia64.rpm
libxml2-devel-2.5.10-15.ia64.rpm
libxml2-python-2.5.10-15.ia64.rpm

ppc:
libxml-1.8.17-9.3.ppc.rpm
libxml-1.8.17-9.3.ppc64.rpm
libxml-debuginfo-1.8.17-9.3.ppc.rpm
libxml-debuginfo-1.8.17-9.3.ppc64.rpm
libxml-devel-1.8.17-9.3.ppc.rpm
libxml2-2.5.10-15.ppc.rpm
libxml2-2.5.10-15.ppc64.rpm
libxml2-debuginfo-2.5.10-15.ppc.rpm
libxml2-debuginfo-2.5.10-15.ppc64.rpm
libxml2-devel-2.5.10-15.ppc.rpm
libxml2-python-2.5.10-15.ppc.rpm

s390:
libxml-1.8.17-9.3.s390.rpm
libxml-debuginfo-1.8.17-9.3.s390.rpm
libxml-devel-1.8.17-9.3.s390.rpm
libxml2-2.5.10-15.s390.rpm
libxml2-debuginfo-2.5.10-15.s390.rpm
libxml2-devel-2.5.10-15.s390.rpm
libxml2-python-2.5.10-15.s390.rpm

s390x:
libxml-1.8.17-9.3.s390.rpm
libxml-1.8.17-9.3.s390x.rpm
libxml-debuginfo-1.8.17-9.3.s390.rpm
libxml-debuginfo-1.8.17-9.3.s390x.rpm
libxml-devel-1.8.17-9.3.s390x.rpm
libxml2-2.5.10-15.s390.rpm
libxml2-2.5.10-15.s390x.rpm
libxml2-debuginfo-2.5.10-15.s390.rpm
libxml2-debuginfo-2.5.10-15.s390x.rpm
libxml2-devel-2.5.10-15.s390x.rpm
libxml2-python-2.5.10-15.s390x.rpm

x86_64:
libxml-1.8.17-9.3.i386.rpm
libxml-1.8.17-9.3.x86_64.rpm
libxml-debuginfo-1.8.17-9.3.i386.rpm
libxml-debuginfo-1.8.17-9.3.x86_64.rpm
libxml-devel-1.8.17-9.3.x86_64.rpm
libxml2-2.5.10-15.i386.rpm
libxml2-2.5.10-15.x86_64.rpm
libxml2-debuginfo-2.5.10-15.i386.rpm
libxml2-debuginfo-2.5.10-15.x86_64.rpm
libxml2-devel-2.5.10-15.x86_64.rpm
libxml2-python-2.5.10-15.x86_64.rpm

Red Hat Desktop version 3:

Source:
ftp://updates.redhat.com/enterprise/3desktop/en/os/SRPMS/libxml-1.8.17-9.3.src.rpm
ftp://updates.redhat.com/enterprise/3desktop/en/os/SRPMS/libxml2-2.5.10-15.src.rpm

Red Hat Enterprise Linux ES version 3:

Source:
ftp://updates.redhat.com/enterprise/3ES/en/os/SRPMS/libxml-1.8.17-9.3.src.rpm
ftp://updates.redhat.com/enterprise/3ES/en/os/SRPMS/libxml2-2.5.10-15.src.rpm

Red Hat Enterprise Linux WS version 3:

Source:
ftp://updates.redhat.com/enterprise/3WS/en/os/SRPMS/libxml-1.8.17-9.3.src.rpm
ftp://updates.redhat.com/enterprise/3WS/en/os/SRPMS/libxml2-2.5.10-15.src.rpm

Red Hat Enterprise Linux AS version 4:

Source:
ftp://updates.redhat.com/enterprise/4AS/en/os/SRPMS/libxml2-2.6.16-12.7.src.rpm

i386:
libxml2-2.6.16-12.7.i386.rpm
libxml2-debuginfo-2.6.16-12.7.i386.rpm
libxml2-devel-2.6.16-12.7.i386.rpm
libxml2-python-2.6.16-12.7.i386.rpm

ia64:
libxml2-2.6.16-12.7.i386.rpm
libxml2-2.6.16-12.7.ia64.rpm
libxml2-debuginfo-2.6.16-12.7.i386.rpm
libxml2-debuginfo-2.6.16-12.7.ia64.rpm
libxml2-devel-2.6.16-12.7.ia64.rpm
libxml2-python-2.6.16-12.7.ia64.rpm

ppc:
libxml2-2.6.16-12.7.ppc.rpm
libxml2-2.6.16-12.7.ppc64.rpm
libxml2-debuginfo-2.6.16-12.7.ppc.rpm
libxml2-debuginfo-2.6.16-12.7.ppc64.rpm
libxml2-devel-2.6.16-12.7.ppc.rpm
libxml2-python-2.6.16-12.7.ppc.rpm

s390:
libxml2-2.6.16-12.7.s390.rpm
libxml2-debuginfo-2.6.16-12.7.s390.rpm
libxml2-devel-2.6.16-12.7.s390.rpm
libxml2-python-2.6.16-12.7.s390.rpm

s390x:
libxml2-2.6.16-12.7.s390.rpm
libxml2-2.6.16-12.7.s390x.rpm
libxml2-debuginfo-2.6.16-12.7.s390.rpm
libxml2-debuginfo-2.6.16-12.7.s390x.rpm
libxml2-devel-2.6.16-12.7.s390x.rpm
libxml2-python-2.6.16-12.7.s390x.rpm

x86_64:
libxml2-2.6.16-12.7.i386.rpm
libxml2-2.6.16-12.7.x86_64.rpm
libxml2-debuginfo-2.6.16-12.7.i386.rpm
libxml2-debuginfo-2.6.16-12.7.x86_64.rpm
libxml2-devel-2.6.16-12.7.x86_64.rpm
libxml2-python-2.6.16-12.7.x86_64.rpm

Red Hat Enterprise Linux Desktop version 4:

Source:
ftp://updates.redhat.com/enterprise/4Desktop/en/os/SRPMS/libxml2-2.6.16-12.7.src.rpm

i386:
libxml2-2.6.16-12.7.i386.rpm
libxml2-debuginfo-2.6.16-12.7.i386.rpm
libxml2-devel-2.6.16-12.7.i386.rpm
libxml2-python-2.6.16-12.7.i386.rpm

Red Hat Enterprise Linux ES version 4:

Source:
ftp://updates.redhat.com/enterprise/4ES/en/os/SRPMS/libxml2-2.6.16-12.7.src.rpm

i386:
libxml2-2.6.16-12.7.i386.rpm
libxml2-debuginfo-2.6.16-12.7.i386.rpm
libxml2-devel-2.6.16-12.7.i386.rpm
libxml2-python-2.6.16-12.7.i386.rpm

Red Hat Enterprise Linux WS version 4:

Source:
ftp://updates.redhat.com/enterprise/4WS/en/os/SRPMS/libxml2-2.6.16-12.7.src.rpm

i386:
libxml2-2.6.16-12.7.i386.rpm
libxml2-debuginfo-2.6.16-12.7.i386.rpm
libxml2-devel-2.6.16-12.7.i386.rpm
libxml2-python-2.6.16-12.7.i386.rpm

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

Source:
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/5Client/en/os/SRPMS/libxml2-2.6.26-2.1.2.8.src.rpm

i386:
libxml2-2.6.26-2.1.2.8.i386.rpm
libxml2-debuginfo-2.6.26-2.1.2.8.i386.rpm
libxml2-python-2.6.26-2.1.2.8.i386.rpm

x86_64:
libxml2-2.6.26-2.1.2.8.i386.rpm
libxml2-2.6.26-2.1.2.8.x86_64.rpm
libxml2-debuginfo-2.6.26-2.1.2.8.i386.rpm
libxml2-debuginfo-2.6.26-2.1.2.8.x86_64.rpm
libxml2-python-2.6.26-2.1.2.8.x86_64.rpm

RHEL Desktop Workstation (v. 5 client):

Source:
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/5Client/en/os/SRPMS/libxml2-2.6.26-2.1.2.8.src.rpm

i386:
libxml2-debuginfo-2.6.26-2.1.2.8.i386.rpm
libxml2-devel-2.6.26-2.1.2.8.i386.rpm

x86_64:
libxml2-debuginfo-2.6.26-2.1.2.8.i386.rpm
libxml2-debuginfo-2.6.26-2.1.2.8.x86_64.rpm
libxml2-devel-2.6.26-2.1.2.8.i386.rpm
libxml2-devel-2.6.26-2.1.2.8.x86_64.rpm

Red Hat Enterprise Linux (v. 5 server):

Source:
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/5Server/en/os/SRPMS/libxml2-2.6.26-2.1.2.8.src.rpm

i386:
libxml2-2.6.26-2.1.2.8.i386.rpm
libxml2-debuginfo-2.6.26-2.1.2.8.i386.rpm
libxml2-devel-2.6.26-2.1.2.8.i386.rpm
libxml2-python-2.6.26-2.1.2.8.i386.rpm

ia64:
libxml2-2.6.26-2.1.2.8.i386.rpm
libxml2-2.6.26-2.1.2.8.ia64.rpm
libxml2-debuginfo-2.6.26-2.1.2.8.i386.rpm
libxml2-debuginfo-2.6.26-2.1.2.8.ia64.rpm
libxml2-devel-2.6.26-2.1.2.8.ia64.rpm
libxml2-python-2.6.26-2.1.2.8.ia64.rpm

ppc:
libxml2-2.6.26-2.1.2.8.ppc.rpm
libxml2-2.6.26-2.1.2.8.ppc64.rpm
libxml2-debuginfo-2.6.26-2.1.2.8.ppc.rpm
libxml2-debuginfo-2.6.26-2.1.2.8.ppc64.rpm
libxml2-devel-2.6.26-2.1.2.8.ppc.rpm
libxml2-devel-2.6.26-2.1.2.8.ppc64.rpm
libxml2-python-2.6.26-2.1.2.8.ppc.rpm

s390x:
libxml2-2.6.26-2.1.2.8.s390.rpm
libxml2-2.6.26-2.1.2.8.s390x.rpm
libxml2-debuginfo-2.6.26-2.1.2.8.s390.rpm
libxml2-debuginfo-2.6.26-2.1.2.8.s390x.rpm
libxml2-devel-2.6.26-2.1.2.8.s390.rpm
libxml2-devel-2.6.26-2.1.2.8.s390x.rpm
libxml2-python-2.6.26-2.1.2.8.s390x.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-2009-2414
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2009-2416
http://www.redhat.com/security/updates/classification/#moderate

8. Contact:

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

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[RedHat] Schwachstellen in der Bibliothek libxml2 - RHSA-2009:1206-01

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[RedHat] Schwachstellen in der Bibliothek libxml2 – RHSA-2009:1206-01

[RedHat] Schwachstellen in der Bibliothek libxml2 - RHSA-2009:1206-01