RHEL 6 : kernel (RHSA-2014:1025)

This script is Copyright (C) 2014-2017 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 one bug are
now available for Red Hat Enterprise Linux 6.2 Advanced Update
Support.

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.

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

* A flaw was found in the way the pppol2tp_setsockopt() and
pppol2tp_getsockopt() functions in the Linux kernel's PPP over L2TP
implementation handled requests with a non-SOL_PPPOL2TP socket option
level. A local, unprivileged user could use this flaw to escalate
their privileges on the system. (CVE-2014-4943, Important)

Red Hat would like to thank Sasha Levin for reporting this issue.

This update also fixes the following bug :

* When a device was registered to a bus, a race condition could occur
between the device being added to the list of devices of the bus and
binding the device to a driver. As a result, the device could already
be bound to a driver which led to a warning and incorrect reference
counting, and consequently to a kernel panic on device removal. To
avoid the race condition, this update adds a check to identify an
already bound device. (BZ#1114409)

All kernel users are advised to 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-2014-4943.html
http://rhn.redhat.com/errata/RHSA-2014-1025.html

Solution :

Update the affected packages.

Risk factor :

Medium / CVSS Base Score : 6.9
(CVSS2#AV:L/AC:M/Au:N/C:C/I:C/A:C)
Public Exploit Available : true

Family: Red Hat Local Security Checks

Nessus Plugin ID: 79113 ()

Bugtraq ID:

CVE ID: CVE-2014-4943

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