RHEL 6 : rhev-hypervisor6 (RHSA-2012:1375)

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 :

An updated rhev-hypervisor6 package that fixes one security issue and
one bug is now available.

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 rhev-hypervisor6 package provides a Red Hat Enterprise
Virtualization Hypervisor ISO disk image. The Red Hat Enterprise
Virtualization Hypervisor is a dedicated Kernel-based Virtual Machine
(KVM) hypervisor. It includes everything necessary to run and manage
virtual machines: A subset of the Red Hat Enterprise Linux operating
environment and the Red Hat Enterprise Virtualization Agent.

Note: Red Hat Enterprise Virtualization Hypervisor is only available
for the Intel 64 and AMD64 architectures with virtualization
extensions.

A flaw was found in the way socket buffers (skb) requiring TSO (TCP
segment offloading) were handled by the sfc driver. If the skb did not
fit within the minimum-size of the transmission queue, the network
card could repeatedly reset itself. A remote attacker could use this
flaw to cause a denial of service. (CVE-2012-3412)

Red Hat would like to thank Ben Hutchings of Solarflare (tm) for
reporting this issue.

This updated package provides updated components that include a fix
for one security issue. This issue had no security impact on Red Hat
Enterprise Virtualization Hypervisor itself, however. The security fix
included in this update addresses the following CVE number :

CVE-2012-4423 (libvirt issue)

This update also fixes the following bug :

* A dependency issue was found between the rhev-hypervisor-tools and
rhev-hypervisor6-tools packages. Every time a user with one of the
-tools packages installed ran 'yum update', the -tools package they
had installed was removed and the other one installed. Even though
rhev-hypervisor-tools obsoleted rhev-hypervisor6-tools, this update
includes an updated rhev-hypervisor6-tools package that corrects this
issue. Note that the package does not have meaningful content, is only
here to fix the dependency issue, and may be removed by a future
update. (BZ#855391)

This update includes the ovirt-node build from RHBA-2012:1374 :

https://rhn.redhat.com/errata/RHBA-2012-1374.html

Users of the Red Hat Enterprise Virtualization Hypervisor are advised
to upgrade to this updated package, which fixes these issues.

See also :

https://www.redhat.com/security/data/cve/CVE-2012-3412.html
https://rhn.redhat.com/errata/RHBA-2012-1374.html
http://www.nessus.org/u?88371879
http://www.nessus.org/u?faae67f0
http://rhn.redhat.com/errata/RHSA-2012-1375.html
http://www.nessus.org/u?1ac5a746
http://www.nessus.org/u?879a0985

Solution :

Update the affected rhev-hypervisor6 and / or rhev-hypervisor6-tools
packages.

Risk factor :

High / CVSS Base Score : 7.8
(CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:C)
CVSS Temporal Score : 6.8
(CVSS2#E:ND/RL:OF/RC:C)
Public Exploit Available : true

Family: Red Hat Local Security Checks

Nessus Plugin ID: 78938 ()

Bugtraq ID: 54763

CVE ID: CVE-2012-3412

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