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Sicherheit: Denial of Service im Kernel
Aktuelle Meldungen Distributionen
Name: Denial of Service im Kernel
ID: RHSA-2013:1348-01
Distribution: Red Hat
Plattformen: Red Hat Enterprise Linux
Datum: Di, 1. Oktober 2013, 11:40
Referenzen: http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2012-4398
https://access.redhat.com/site/documentation/en-US/Red_Hat_Enterprise_Linux/5/html-single/5.10_Release_Notes/index.html
https://access.redhat.com/site/documentation/en-US/Red_Hat_Enterprise_Linux/5/html-single/5.10_Technical_Notes/index.html
Applikationen: Linux

Originalnachricht

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

Synopsis: Moderate: Red Hat Enterprise Linux 5 kernel update
Advisory ID: RHSA-2013:1348-01
Product: Red Hat Enterprise Linux
Advisory URL: https://rhn.redhat.com/errata/RHSA-2013-1348.html
Issue date: 2013-09-30
CVE Names: CVE-2012-4398
=====================================================================

1. Summary:

Updated kernel packages that fix one security issue, several bugs, and add
various enhancements are now available as part of the ongoing support and
maintenance of Red Hat Enterprise Linux version 5. This is the tenth
regular update.

The Red Hat Security Response Team has rated this update as having moderate
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 (v. 5 server) - i386, ia64, noarch, ppc, s390x, x86_64
Red Hat Enterprise Linux Desktop (v. 5 client) - 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:

* It was found that a deadlock could occur in the Out of Memory (OOM)
killer. A process could trigger this deadlock by consuming a large amount
of memory, and then causing request_module() to be called. A local,
unprivileged user could use this flaw to cause a denial of service
(excessive memory consumption). (CVE-2012-4398, Moderate)

Red Hat would like to thank Tetsuo Handa for reporting this issue.

This update also fixes numerous bugs and adds various enhancements. Refer
to the Red Hat Enterprise Linux 5.10 Release Notes for information on the
most significant of these changes, and the Technical Notes for further
information, both linked to in the References.

All Red Hat Enterprise Linux 5 users are advised to install these updated
packages, which correct this issue, and fix the bugs and add the
enhancements noted in the Red Hat Enterprise Linux 5.10 Release Notes and
Technical Notes. 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/site/articles/11258

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/):

709658 - Bad build req: No Package Found for kernel-debug-devel-x86_64
756309 - extN: new file created even if open(2) returned -EPERM
853474 - CVE-2012-4398 kernel: request_module() OOM local DoS
862862 - long ixgbevf interface name crashes kernel
865292 - [Hyper-V] storvsc: Account for in-transit packets in the RESET path
865736 - Only 2 VF can be seen in RHEL5.9 PV guest
894360 - starting a F18 install as a CentOS5 xen guest
961667 - xen: numa: guest crash on second restore

6. Package List:

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

Source:
kernel-2.6.18-371.el5.src.rpm

i386:
kernel-2.6.18-371.el5.i686.rpm
kernel-PAE-2.6.18-371.el5.i686.rpm
kernel-PAE-debuginfo-2.6.18-371.el5.i686.rpm
kernel-PAE-devel-2.6.18-371.el5.i686.rpm
kernel-debug-2.6.18-371.el5.i686.rpm
kernel-debug-debuginfo-2.6.18-371.el5.i686.rpm
kernel-debug-devel-2.6.18-371.el5.i686.rpm
kernel-debuginfo-2.6.18-371.el5.i686.rpm
kernel-debuginfo-common-2.6.18-371.el5.i686.rpm
kernel-devel-2.6.18-371.el5.i686.rpm
kernel-headers-2.6.18-371.el5.i386.rpm
kernel-xen-2.6.18-371.el5.i686.rpm
kernel-xen-debuginfo-2.6.18-371.el5.i686.rpm
kernel-xen-devel-2.6.18-371.el5.i686.rpm

noarch:
kernel-doc-2.6.18-371.el5.noarch.rpm

x86_64:
kernel-2.6.18-371.el5.x86_64.rpm
kernel-debug-2.6.18-371.el5.x86_64.rpm
kernel-debug-debuginfo-2.6.18-371.el5.x86_64.rpm
kernel-debug-devel-2.6.18-371.el5.x86_64.rpm
kernel-debuginfo-2.6.18-371.el5.x86_64.rpm
kernel-debuginfo-common-2.6.18-371.el5.x86_64.rpm
kernel-devel-2.6.18-371.el5.x86_64.rpm
kernel-headers-2.6.18-371.el5.x86_64.rpm
kernel-xen-2.6.18-371.el5.x86_64.rpm
kernel-xen-debuginfo-2.6.18-371.el5.x86_64.rpm
kernel-xen-devel-2.6.18-371.el5.x86_64.rpm

Red Hat Enterprise Linux (v. 5 server):

Source:
kernel-2.6.18-371.el5.src.rpm

i386:
kernel-2.6.18-371.el5.i686.rpm
kernel-PAE-2.6.18-371.el5.i686.rpm
kernel-PAE-debuginfo-2.6.18-371.el5.i686.rpm
kernel-PAE-devel-2.6.18-371.el5.i686.rpm
kernel-debug-2.6.18-371.el5.i686.rpm
kernel-debug-debuginfo-2.6.18-371.el5.i686.rpm
kernel-debug-devel-2.6.18-371.el5.i686.rpm
kernel-debuginfo-2.6.18-371.el5.i686.rpm
kernel-debuginfo-common-2.6.18-371.el5.i686.rpm
kernel-devel-2.6.18-371.el5.i686.rpm
kernel-headers-2.6.18-371.el5.i386.rpm
kernel-xen-2.6.18-371.el5.i686.rpm
kernel-xen-debuginfo-2.6.18-371.el5.i686.rpm
kernel-xen-devel-2.6.18-371.el5.i686.rpm

ia64:
kernel-2.6.18-371.el5.ia64.rpm
kernel-debug-2.6.18-371.el5.ia64.rpm
kernel-debug-debuginfo-2.6.18-371.el5.ia64.rpm
kernel-debug-devel-2.6.18-371.el5.ia64.rpm
kernel-debuginfo-2.6.18-371.el5.ia64.rpm
kernel-debuginfo-common-2.6.18-371.el5.ia64.rpm
kernel-devel-2.6.18-371.el5.ia64.rpm
kernel-headers-2.6.18-371.el5.ia64.rpm
kernel-xen-2.6.18-371.el5.ia64.rpm
kernel-xen-debuginfo-2.6.18-371.el5.ia64.rpm
kernel-xen-devel-2.6.18-371.el5.ia64.rpm

noarch:
kernel-doc-2.6.18-371.el5.noarch.rpm

ppc:
kernel-2.6.18-371.el5.ppc64.rpm
kernel-debug-2.6.18-371.el5.ppc64.rpm
kernel-debug-debuginfo-2.6.18-371.el5.ppc64.rpm
kernel-debug-devel-2.6.18-371.el5.ppc64.rpm
kernel-debuginfo-2.6.18-371.el5.ppc64.rpm
kernel-debuginfo-common-2.6.18-371.el5.ppc64.rpm
kernel-devel-2.6.18-371.el5.ppc64.rpm
kernel-headers-2.6.18-371.el5.ppc.rpm
kernel-headers-2.6.18-371.el5.ppc64.rpm
kernel-kdump-2.6.18-371.el5.ppc64.rpm
kernel-kdump-debuginfo-2.6.18-371.el5.ppc64.rpm
kernel-kdump-devel-2.6.18-371.el5.ppc64.rpm

s390x:
kernel-2.6.18-371.el5.s390x.rpm
kernel-debug-2.6.18-371.el5.s390x.rpm
kernel-debug-debuginfo-2.6.18-371.el5.s390x.rpm
kernel-debug-devel-2.6.18-371.el5.s390x.rpm
kernel-debuginfo-2.6.18-371.el5.s390x.rpm
kernel-debuginfo-common-2.6.18-371.el5.s390x.rpm
kernel-devel-2.6.18-371.el5.s390x.rpm
kernel-headers-2.6.18-371.el5.s390x.rpm
kernel-kdump-2.6.18-371.el5.s390x.rpm
kernel-kdump-debuginfo-2.6.18-371.el5.s390x.rpm
kernel-kdump-devel-2.6.18-371.el5.s390x.rpm

x86_64:
kernel-2.6.18-371.el5.x86_64.rpm
kernel-debug-2.6.18-371.el5.x86_64.rpm
kernel-debug-debuginfo-2.6.18-371.el5.x86_64.rpm
kernel-debug-devel-2.6.18-371.el5.x86_64.rpm
kernel-debuginfo-2.6.18-371.el5.x86_64.rpm
kernel-debuginfo-common-2.6.18-371.el5.x86_64.rpm
kernel-devel-2.6.18-371.el5.x86_64.rpm
kernel-headers-2.6.18-371.el5.x86_64.rpm
kernel-xen-2.6.18-371.el5.x86_64.rpm
kernel-xen-debuginfo-2.6.18-371.el5.x86_64.rpm
kernel-xen-devel-2.6.18-371.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://access.redhat.com/security/team/key/#package

7. References:

https://www.redhat.com/security/data/cve/CVE-2012-4398.html
https://access.redhat.com/security/updates/classification/#moderate
https://access.redhat.com/site/documentation/en-US/Red_Hat_Enterprise_Linux/5/html-single/5.10_Release_Notes/index.html
https://access.redhat.com/site/documentation/en-US/Red_Hat_Enterprise_Linux/5/html-single/5.10_Technical_Notes/index.html

8. Contact:

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

Copyright 2013 Red Hat, Inc.
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