[RedHat] Mehrere Schwachstellen im Kernel fuer Red Hat Enterprise Linux 6

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Liebe Kolleginnen und Kollegen,

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

CVE-2011-0714 – Schwachstelle im Red Hat Enterprise Linux 6 Kernel

Durch den fehlerhaften Backport eines Patches enstand eine
“use-after-free” Schwachstelle im Linux Kernel von RHEL Version 6, in
der Implementierung der RPC Server Sockets. Einem entfernten Angreifer
ist es damit moeglich, einen Denial of Service-Angriff gegen ein System
durchzufuehren, indem er speziell praeparierte Pakete sendet.

Betroffen sind die folgenden Software Pakete und Plattformen:

Paket kernel

Red Hat Enterprise Linux Desktop (v. 6) – i386, noarch, x86_64
Red Hat Enterprise Linux HPC Node (v. 6) – noarch, x86_64
Red Hat Enterprise Linux Server (v. 6) – i386, noarch, ppc64, s390x,
x86_64
Red Hat Enterprise Linux Workstation (v. 6) – i386, noarch, 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,
Timo Schulz

– —
Timo Schulz, M.Sc. (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: Important: kernel security update
Advisory ID: RHSA-2011:0329-01
Product: Red Hat Enterprise Linux
Advisory URL: https://rhn.redhat.com/errata/RHSA-2011-0329.html
Issue date: 2011-03-08
CVE Names: CVE-2011-0714
=====================================================================

1. Summary:

Updated kernel packages that fix one security issue are now available for
Red Hat Enterprise Linux 6.

The Red Hat Security Response Team has rated this update as having
important security impact. A Common Vulnerability Scoring System (CVSS)
base score, which gives a detailed severity rating, is available from the
CVE link in the References section.

2. Relevant releases/architectures:

Red Hat Enterprise Linux Desktop (v. 6) – i386, noarch, x86_64
Red Hat Enterprise Linux HPC Node (v. 6) – noarch, x86_64
Red Hat Enterprise Linux Server (v. 6) – i386, noarch, ppc64, s390x, x86_64
Red Hat Enterprise Linux Workstation (v. 6) – i386, noarch, x86_64

3. Description:

The kernel packages contain the Linux kernel, the core of any Linux
operating system.

This update fixes the following security issue:

* A use-after-free flaw was found in the Linux kernel’s RPC server sockets
implementation. A remote attacker could use this flaw to trigger a denial
of service by sending a corrupted packet to a target system.
(CVE-2011-0714, Important)

Red Hat would like to thank Adam Prince for reporting this issue.

Users should upgrade to these updated packages, which contain a backported
patch to correct this issue. The system must be rebooted for this 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

To install kernel packages manually, use “rpm -ivh [package]”. Do not
use “rpm -Uvh” as that will remove the running kernel binaries from
your system. You may use “rpm -e” to remove old kernels after
determining that the new kernel functions properly on your system.

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

678144 – CVE-2011-0714 kernel: deficiency in handling of invalid data packets in lockd

6. Package List:

Red Hat Enterprise Linux Desktop (v. 6):

Source:
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/6Client/en/os/SRPMS/kernel-2.6.32-71.18.2.el6.src.rpm

i386:
kernel-2.6.32-71.18.2.el6.i686.rpm
kernel-debug-2.6.32-71.18.2.el6.i686.rpm
kernel-debug-debuginfo-2.6.32-71.18.2.el6.i686.rpm
kernel-debug-devel-2.6.32-71.18.2.el6.i686.rpm
kernel-debuginfo-2.6.32-71.18.2.el6.i686.rpm
kernel-debuginfo-common-i686-2.6.32-71.18.2.el6.i686.rpm
kernel-devel-2.6.32-71.18.2.el6.i686.rpm
kernel-headers-2.6.32-71.18.2.el6.i686.rpm

noarch:
kernel-doc-2.6.32-71.18.2.el6.noarch.rpm
kernel-firmware-2.6.32-71.18.2.el6.noarch.rpm
perf-2.6.32-71.18.2.el6.noarch.rpm

x86_64:
kernel-2.6.32-71.18.2.el6.x86_64.rpm
kernel-debug-2.6.32-71.18.2.el6.x86_64.rpm
kernel-debug-debuginfo-2.6.32-71.18.2.el6.x86_64.rpm
kernel-debug-devel-2.6.32-71.18.2.el6.x86_64.rpm
kernel-debuginfo-2.6.32-71.18.2.el6.x86_64.rpm
kernel-debuginfo-common-x86_64-2.6.32-71.18.2.el6.x86_64.rpm
kernel-devel-2.6.32-71.18.2.el6.x86_64.rpm
kernel-headers-2.6.32-71.18.2.el6.x86_64.rpm

Red Hat Enterprise Linux HPC Node (v. 6):

Source:
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/6ComputeNode/en/os/SRPMS/kernel-2.6.32-71.18.2.el6.src.rpm

noarch:
kernel-doc-2.6.32-71.18.2.el6.noarch.rpm
kernel-firmware-2.6.32-71.18.2.el6.noarch.rpm
perf-2.6.32-71.18.2.el6.noarch.rpm

Red Hat Enterprise Linux Server (v. 6):

Source:
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/6Server/en/os/SRPMS/kernel-2.6.32-71.18.2.el6.src.rpm

noarch:
kernel-doc-2.6.32-71.18.2.el6.noarch.rpm
kernel-firmware-2.6.32-71.18.2.el6.noarch.rpm
perf-2.6.32-71.18.2.el6.noarch.rpm

ppc64:
kernel-2.6.32-71.18.2.el6.ppc64.rpm
kernel-bootwrapper-2.6.32-71.18.2.el6.ppc64.rpm
kernel-debug-2.6.32-71.18.2.el6.ppc64.rpm
kernel-debug-debuginfo-2.6.32-71.18.2.el6.ppc64.rpm
kernel-debug-devel-2.6.32-71.18.2.el6.ppc64.rpm
kernel-debuginfo-2.6.32-71.18.2.el6.ppc64.rpm
kernel-debuginfo-common-ppc64-2.6.32-71.18.2.el6.ppc64.rpm
kernel-devel-2.6.32-71.18.2.el6.ppc64.rpm
kernel-headers-2.6.32-71.18.2.el6.ppc64.rpm

s390x:
kernel-2.6.32-71.18.2.el6.s390x.rpm
kernel-debug-2.6.32-71.18.2.el6.s390x.rpm
kernel-debug-debuginfo-2.6.32-71.18.2.el6.s390x.rpm
kernel-debug-devel-2.6.32-71.18.2.el6.s390x.rpm
kernel-debuginfo-2.6.32-71.18.2.el6.s390x.rpm
kernel-debuginfo-common-s390x-2.6.32-71.18.2.el6.s390x.rpm
kernel-devel-2.6.32-71.18.2.el6.s390x.rpm
kernel-headers-2.6.32-71.18.2.el6.s390x.rpm
kernel-kdump-2.6.32-71.18.2.el6.s390x.rpm
kernel-kdump-debuginfo-2.6.32-71.18.2.el6.s390x.rpm
kernel-kdump-devel-2.6.32-71.18.2.el6.s390x.rpm

Red Hat Enterprise Linux Workstation (v. 6):

Source:
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/6Workstation/en/os/SRPMS/kernel-2.6.32-71.18.2.el6.src.rpm

noarch:
kernel-doc-2.6.32-71.18.2.el6.noarch.rpm
kernel-firmware-2.6.32-71.18.2.el6.noarch.rpm
perf-2.6.32-71.18.2.el6.noarch.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-2011-0714.html
https://access.redhat.com/security/updates/classification/#important

8. Contact:

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

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[RedHat] Mehrere Schwachstellen im Kernel fuer Red Hat Enterprise Linux 6 - RHSA-2011:0329-01

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[RedHat] Mehrere Schwachstellen im Kernel fuer Red Hat Enterprise Linux 6 – RHSA-2011:0329-01

[RedHat] Mehrere Schwachstellen im Kernel fuer Red Hat Enterprise Linux 6 - RHSA-2011:0329-01