[RHSA-2015:2673-01] Moderate: openstack-nova security and bug fix advisory

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Red Hat Security Advisory

 

Synopsis: Moderate: openstack-nova security and bug fix advisory

Advisory ID: RHSA-2015:2673-01

Product: Red Hat Enterprise Linux OpenStack Platform

Advisory URL: https://access.redhat.com/errata/RHSA-2015:2673

Issue date: 2015-12-21

CVE Names: CVE-2015-7713

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1. Summary:

 

Updated OpenStack Compute packages that resolve various issues are now

available for Red Hat Enterprise Linux OpenStack Platform 7.0 for

RHEL 7.

 

2. Relevant releases/architectures:

 

OpenStack 7.0 Tools for RHEL 7 - noarch

Red Hat Enterprise Linux OpenStack Platform 7.0 for RHEL 7 - noarch

 

3. Description:

 

OpenStack Compute (nova) launches and schedules large networks of virtual

machines, creating a redundant and scalable cloud computing platform.

Compute provides the software, control panels, and APIs required to

orchestrate a cloud, including running virtual machine instances and

controlling access through users and projects.

 

A vulnerability was discovered in the way OpenStack Compute (nova)

networking handled security group updates; changes were not applied to

already running VM instances. A remote attacker could use this flaw to

access running VM instances. (CVE-2015-7713)

 

Additional updates include:

 

* The openstack-nova packages have been upgraded to upstream version

2015.1.2. See https://launchpad.net/nova/kilo/2015.1.2 for a complete list

of bug fixes and enhancements. (BZ#1274875)

 

* When using huge pages, the back-end memory for a guest was configured as

private. This disallowed an external process connected to a vhostuser VIF

type to access the QEMU guest's memory, which is required by the QEMU

network driver functionality. The memory mappings are now marked as

shared, and the external process to provide QEMU network is able to access

the guest's memory. (BZ#1215790)

 

* The termination of a WSGI application or an RPC server immediately

stopped the service and interrupted requests that were in progress. This

update adds a graceful handler for the SIGTERM signal sent to the parent

WSGI process, so the termination is performed gracefully, which allows

ongoing processes to continue. (BZ#1250269)

 

* Previously, novaclient records requested time even when timing was set

to False. As a consequence, system memory kept increasing. With this

update, when timing is set to True, the time of each request is recorded

and the timings are reset to clear the memory, which no longer

increases. (BZ#1260868)

 

* An earlier update changed the return value when no host devices were

found when connecting to an iSCSI or iSER volume. Consequently, when no

host devices were found, an exception was thrown and the connect volume

attempt failed. This update adds an additional check to ensure

os.path.exists(None) is never called. As a result, an exception is no

longer thrown and the connect logic correctly retries finding present

host devices. (BZ#1268051)

 

* Compute's rootwrap filters restricted an `ln` command used by the volume

encryption providers to a specific iSCSI related target path. Consequently,

iSER, NFS, and FC volumes encountered failures because the `ln` command was

rejected by Compute's rootwrap filters. This update makes Nova's rootwrap

filters more generic when calling `ln` allowing the volume encryption

providers to succeed. (BZ#1273466)

 

* FCoE devices have different sysfs paths to standard FC devices.

Consequently, Nova failed when attempting to attach an FCoE based volume

to an instance as it assumed these paths were the same. This update ensures

that the required PCI information is parsed from both FC and FCoE sysfs

device paths. As a result, Nova now succeeds in attaching FCoE based

volumes to instances. (BZ#1274054)

 

* Nova failed to parse the output from the `multipath -l ${device}` command

when errors were present. Consequently, the attaching and detaching of

volumes could fail. This update corrects the find_multipath_device method

to ensure that any errors present in the output from the aforementioned

command are ignored. As a result, both the attaching and detaching of

volumes will now succeed even if errors occur. (BZ#1275937)

 

* Volumes were not correctly detached if an error was encountered during

the attach process, and could be left attached to an instance, resulting

in data loss. This update ensures that the volume is both detached

and the connection to the volume closed in the event of a failure during

the attach process. (BZ#1276011)

 

* The ability of the libvirt driver to set the admin password has been

added. To use this feature, run the following command:

nova root-password [server]

(BZ#1261100)

 

4. Solution:

 

Before applying this update, ensure all previously released errata relevant

to your system have been applied.

 

Red Hat Enterprise Linux OpenStack Platform 7 runs on Red Hat Enterprise

Linux 7.2.

 

The Red Hat Enterprise Linux OpenStack Platform 7 Release Notes contain the

following:

* An explanation of the way in which the provided components interact to

form a working cloud computing environment.

* Technology Previews, Recommended Practices, and Known Issues.

* The channels required for Red Hat Enterprise Linux OpenStack Platform 7,

including which channels need to be enabled and disabled.

 

The Release Notes are available at:

https://access.redhat.com/documentation/en/red-hat-enterprise-linux-opensta

ck-platform/version-7/release-notes/

 

This update is available through 'yum update' on systems registered through

Red Hat Subscription Manager. For more information about Red Hat

Subscription Manager, see:

 

https://access.redhat.com/documentation/en-US/Red_Hat_Subscription_Manageme

nt/1/html/RHSM/index.html

 

5. Bugs fixed (https://bugzilla.redhat.com/):

 

1249751 - centralized logging - fluentd is blocked from accessing Nova compute logs

1261100 - nova: Make set_admin_password work with the libvirt driver (via QEMU guest agent)

1268051 - volume attach failed with iser

1269119 - CVE-2015-7713 openstack-nova: network security group changes are not applied to running instances

1273466 - Nova volume encryptors attach volume fails for NFS and FC (rootwrap)

1274054 - When using a FCoE adapter instead of a FC adapter, volumes will fail to attach to the VM

1274875 - Rebase openstack-nova to 2015.1.2

1275937 - nova searches for wrong device unexpectedly when multipath device has faulty lun

 

6. Package List:

 

OpenStack 7.0 Tools for RHEL 7:

 

Source:

python-novaclient-2.23.0-2.el7ost.src.rpm

 

noarch:

python-novaclient-2.23.0-2.el7ost.noarch.rpm

python-novaclient-doc-2.23.0-2.el7ost.noarch.rpm

 

Red Hat Enterprise Linux OpenStack Platform 7.0 for RHEL 7:

 

Source:

openstack-nova-2015.1.2-7.el7ost.src.rpm

python-novaclient-2.23.0-2.el7ost.src.rpm

 

noarch:

openstack-nova-2015.1.2-7.el7ost.noarch.rpm

openstack-nova-api-2015.1.2-7.el7ost.noarch.rpm

openstack-nova-cells-2015.1.2-7.el7ost.noarch.rpm

openstack-nova-cert-2015.1.2-7.el7ost.noarch.rpm

openstack-nova-common-2015.1.2-7.el7ost.noarch.rpm

openstack-nova-compute-2015.1.2-7.el7ost.noarch.rpm

openstack-nova-conductor-2015.1.2-7.el7ost.noarch.rpm

openstack-nova-console-2015.1.2-7.el7ost.noarch.rpm

openstack-nova-doc-2015.1.2-7.el7ost.noarch.rpm

openstack-nova-network-2015.1.2-7.el7ost.noarch.rpm

openstack-nova-novncproxy-2015.1.2-7.el7ost.noarch.rpm

openstack-nova-objectstore-2015.1.2-7.el7ost.noarch.rpm

openstack-nova-scheduler-2015.1.2-7.el7ost.noarch.rpm

openstack-nova-serialproxy-2015.1.2-7.el7ost.noarch.rpm

openstack-nova-spicehtml5proxy-2015.1.2-7.el7ost.noarch.rpm

python-nova-2015.1.2-7.el7ost.noarch.rpm

python-novaclient-2.23.0-2.el7ost.noarch.rpm

python-novaclient-doc-2.23.0-2.el7ost.noarch.rpm

 

OpenStack 7.0 Tools for RHEL 7:

 

Source:

python-novaclient-2.23.0-2.el7ost.src.rpm

 

noarch:

python-novaclient-2.23.0-2.el7ost.noarch.rpm

python-novaclient-doc-2.23.0-2.el7ost.noarch.rpm

 

OpenStack 7.0 Tools for RHEL 7:

 

Source:

python-novaclient-2.23.0-2.el7ost.src.rpm

 

noarch:

python-novaclient-2.23.0-2.el7ost.noarch.rpm

python-novaclient-doc-2.23.0-2.el7ost.noarch.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/

 

7. References:

 

https://access.redhat.com/security/cve/CVE-2015-7713

https://access.redhat.com/security/updates/classification/#moderate

 

8. Contact:

 

The Red Hat security contact is . More contact

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

 

Copyright 2015 Red Hat, Inc.

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