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[RHSA-2012:1481-01] Low: kernel security and bug fix update

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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 . More contact

details at https://access.redhat.com/security/team/contact/

 

Copyright 2012 Red Hat, Inc.

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