RHEL 5 : kernel (RHSA-2012:1481)

This script is Copyright (C) 2013-2014 Tenable Network Security, Inc.


Synopsis :

The remote Red Hat host is missing one or more security updates.

Description :

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.

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.

See also :

https://www.redhat.com/security/data/cve/CVE-2012-2313.html
http://rhn.redhat.com/errata/RHSA-2012-1481.html

Solution :

Update the affected packages.

Risk factor :

Low / CVSS Base Score : 1.2
(CVSS2#AV:L/AC:H/Au:N/C:N/I:N/A:P)
CVSS Temporal Score : 1.0
(CVSS2#E:ND/RL:OF/RC:C)
Public Exploit Available : false

Family: Red Hat Local Security Checks

Nessus Plugin ID: 64062 ()

Bugtraq ID: 53965

CVE ID: CVE-2012-2313