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Red Hat Security Advisory 2012-1481-01

Red Hat Security Advisory 2012-1481-01
Posted Nov 20, 2012
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2012-1481-01 - The kernel packages contain the Linux kernel, the core of any Linux operating system. A flaw was found in the way the Linux kernel's dl2k driver, used by certain D-Link Gigabit Ethernet adapters, restricted IOCTLs. A local, unprivileged user could use this flaw to issue potentially harmful IOCTLs, which could cause Ethernet adapters using the dl2k driver to malfunction.

tags | advisory, kernel, local
systems | linux, redhat
advisories | CVE-2012-2313
MD5 | 2b362c15a6012869f47613806a5222c4

Red Hat Security Advisory 2012-1481-01

Change Mirror Download
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=====================================================================
Red Hat Security Advisory

Synopsis: Low: kernel security and bug fix update
Advisory ID: RHSA-2012:1481-01
Product: Red Hat Enterprise Linux
Advisory URL: https://rhn.redhat.com/errata/RHSA-2012-1481.html
Issue date: 2012-11-20
CVE Names: CVE-2012-2313
=====================================================================

1. Summary:

Updated kernel packages that fix one security issue and three bugs are now
available for Red Hat Enterprise Linux 5.6 Extended Update Support.

The Red Hat Security Response Team has rated this update as having low
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 EUS (v. 5.6 server) - i386, ia64, noarch, ppc, s390x, 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 flaw was found in the way the Linux kernel's dl2k driver, used by
certain D-Link Gigabit Ethernet adapters, restricted IOCTLs. A local,
unprivileged user could use this flaw to issue potentially harmful IOCTLs,
which could cause Ethernet adapters using the dl2k driver to malfunction
(for example, losing network connectivity). (CVE-2012-2313, Low)

Red Hat would like to thank Stephan Mueller for reporting this issue.

This update also fixes the following bugs:

* The QLogic netxen_nic driver has been upgraded to version 4.0.75, which
provides several bug fixes. This update also allows users to set speed and
automatic negotiation parameters for Gigabit Ethernet (GbE) ports. Note
that QLogic devices do not support half-duplex data transmission at the
moment. (BZ#865304)

* When the ext3_dx_add_entry() function had to split a directory index
node, it had to ensure that the name_len variable of the new dx_node's
fake_dirent structure was set to zero. Otherwise, the e2fsck tool did not
recognize it as an intermediate htree node and considered the htree node to
be corrupted. The dx_node's fake_dirent structure is now always explicitly
set to zero, which prevents the corruption in this scenario. (BZ#866548)

* Previously, the error cleanup logic was incorrect: once an error was
detected, the same error was reported on every polling cycle (the default
behavior is to poll every second). This caused an excessive amount of Error
Detection And Correction (EDAC) messages to be logged in the
/var/log/messages file. This update fixes the error cleanup logic, which
prevents the unnecessary messages from being logged. (BZ#866796)

Users should upgrade to these updated packages, which contain backported
patches to correct these issues. 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/knowledge/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/):

818820 - CVE-2012-2313 kernel: unfiltered netdev rio_ioctl access by users

6. Package List:

Red Hat Enterprise Linux EUS (v. 5.6 server):

Source:
kernel-2.6.18-238.47.1.el5.src.rpm

i386:
kernel-2.6.18-238.47.1.el5.i686.rpm
kernel-PAE-2.6.18-238.47.1.el5.i686.rpm
kernel-PAE-debuginfo-2.6.18-238.47.1.el5.i686.rpm
kernel-PAE-devel-2.6.18-238.47.1.el5.i686.rpm
kernel-debug-2.6.18-238.47.1.el5.i686.rpm
kernel-debug-debuginfo-2.6.18-238.47.1.el5.i686.rpm
kernel-debug-devel-2.6.18-238.47.1.el5.i686.rpm
kernel-debuginfo-2.6.18-238.47.1.el5.i686.rpm
kernel-debuginfo-common-2.6.18-238.47.1.el5.i686.rpm
kernel-devel-2.6.18-238.47.1.el5.i686.rpm
kernel-headers-2.6.18-238.47.1.el5.i386.rpm
kernel-xen-2.6.18-238.47.1.el5.i686.rpm
kernel-xen-debuginfo-2.6.18-238.47.1.el5.i686.rpm
kernel-xen-devel-2.6.18-238.47.1.el5.i686.rpm

ia64:
kernel-2.6.18-238.47.1.el5.ia64.rpm
kernel-debug-2.6.18-238.47.1.el5.ia64.rpm
kernel-debug-debuginfo-2.6.18-238.47.1.el5.ia64.rpm
kernel-debug-devel-2.6.18-238.47.1.el5.ia64.rpm
kernel-debuginfo-2.6.18-238.47.1.el5.ia64.rpm
kernel-debuginfo-common-2.6.18-238.47.1.el5.ia64.rpm
kernel-devel-2.6.18-238.47.1.el5.ia64.rpm
kernel-headers-2.6.18-238.47.1.el5.ia64.rpm
kernel-xen-2.6.18-238.47.1.el5.ia64.rpm
kernel-xen-debuginfo-2.6.18-238.47.1.el5.ia64.rpm
kernel-xen-devel-2.6.18-238.47.1.el5.ia64.rpm

noarch:
kernel-doc-2.6.18-238.47.1.el5.noarch.rpm

ppc:
kernel-2.6.18-238.47.1.el5.ppc64.rpm
kernel-debug-2.6.18-238.47.1.el5.ppc64.rpm
kernel-debug-debuginfo-2.6.18-238.47.1.el5.ppc64.rpm
kernel-debug-devel-2.6.18-238.47.1.el5.ppc64.rpm
kernel-debuginfo-2.6.18-238.47.1.el5.ppc64.rpm
kernel-debuginfo-common-2.6.18-238.47.1.el5.ppc64.rpm
kernel-devel-2.6.18-238.47.1.el5.ppc64.rpm
kernel-headers-2.6.18-238.47.1.el5.ppc.rpm
kernel-headers-2.6.18-238.47.1.el5.ppc64.rpm
kernel-kdump-2.6.18-238.47.1.el5.ppc64.rpm
kernel-kdump-debuginfo-2.6.18-238.47.1.el5.ppc64.rpm
kernel-kdump-devel-2.6.18-238.47.1.el5.ppc64.rpm

s390x:
kernel-2.6.18-238.47.1.el5.s390x.rpm
kernel-debug-2.6.18-238.47.1.el5.s390x.rpm
kernel-debug-debuginfo-2.6.18-238.47.1.el5.s390x.rpm
kernel-debug-devel-2.6.18-238.47.1.el5.s390x.rpm
kernel-debuginfo-2.6.18-238.47.1.el5.s390x.rpm
kernel-debuginfo-common-2.6.18-238.47.1.el5.s390x.rpm
kernel-devel-2.6.18-238.47.1.el5.s390x.rpm
kernel-headers-2.6.18-238.47.1.el5.s390x.rpm
kernel-kdump-2.6.18-238.47.1.el5.s390x.rpm
kernel-kdump-debuginfo-2.6.18-238.47.1.el5.s390x.rpm
kernel-kdump-devel-2.6.18-238.47.1.el5.s390x.rpm

x86_64:
kernel-2.6.18-238.47.1.el5.x86_64.rpm
kernel-debug-2.6.18-238.47.1.el5.x86_64.rpm
kernel-debug-debuginfo-2.6.18-238.47.1.el5.x86_64.rpm
kernel-debug-devel-2.6.18-238.47.1.el5.x86_64.rpm
kernel-debuginfo-2.6.18-238.47.1.el5.x86_64.rpm
kernel-debuginfo-common-2.6.18-238.47.1.el5.x86_64.rpm
kernel-devel-2.6.18-238.47.1.el5.x86_64.rpm
kernel-headers-2.6.18-238.47.1.el5.x86_64.rpm
kernel-xen-2.6.18-238.47.1.el5.x86_64.rpm
kernel-xen-debuginfo-2.6.18-238.47.1.el5.x86_64.rpm
kernel-xen-devel-2.6.18-238.47.1.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-2012-2313.html
https://access.redhat.com/security/updates/classification/#low

8. Contact:

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

Copyright 2012 Red Hat, Inc.
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