RHSA-2015:0430 - Security Advisory

Topic

An updated virt-who package that fixes one security issue, several bugs,
and adds various enhancements is now available for Red Hat Enterprise
Linux 7.

Red Hat Product Security has rated this update as having Moderate 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.

Description

The virt-who package provides an agent that collects information about
virtual guests present in the system and reports them to the
subscription manager.

It was discovered that the /etc/sysconfig/virt-who configuration file,
which may contain hypervisor authentication credentials, was
world-readable. A local user could use this flaw to obtain authentication
credentials from this file. (CVE-2014-0189)

Red Hat would like to thank Sal Castiglione for reporting this issue.

The virt-who package has been upgraded to upstream version 0.11, which
provides a number of bug fixes and enhancements over the previous version.
The most notable bug fixes and enhancements include:

• Support for remote libvirt.
• A fix for using encrypted passwords.
• Bug fixes and enhancements that increase the stability of virt-who.

(BZ#1122489)

This update also fixes the following bugs:

• Prior to this update, the virt-who agent failed to read the list of

virtual guests provided by the VDSM daemon. As a consequence, when in VDSM
mode, the virt-who agent was not able to send updates about virtual guests
to Subscription Asset Manager (SAM) and Red Hat Satellite. With this
update, the agent reads the list of guests when in VDSM mode correctly and
reports to SAM and Satellite as expected. (BZ#1153405)

• Previously, virt-who used incorrect information when connecting to Red

Hat Satellite 5. Consequently, virt-who could not connect to Red Hat
Satellite 5 servers. The incorrect parameter has been corrected, and
virt-who can now successfully connect to Red Hat Satellite 5. (BZ#1158859)

• Prior to this update, virt-who did not decode the hexadecimal

representation of a password before decrypting it. As a consequence, the
decrypted password did not match the original password, and attempts to
connect using the password failed. virt-who has been updated to decode the
encrypted password and, as a result, virt-who now handles storing
credentials using encrypted passwords as expected. (BZ#1161607)

In addition, this update adds the following enhancement:

• With this update, virt-who is able to read the list of guests from a

remote libvirt hypervisor. (BZ#1127965)

Users of virt-who are advised to upgrade to this updated package, which
corrects these issues and adds these enhancements.

Solution

Before applying this update, make sure all previously released errata
relevant to your system have been applied.

For details on how to apply this update, refer to:

https://access.redhat.com/articles/11258

Affected Products

• Red Hat Enterprise Linux Server 7 x86_64
• Red Hat Enterprise Linux for x86_64 - Extended Update Support 7.7 x86_64
• Red Hat Enterprise Linux for x86_64 - Extended Update Support 7.6 x86_64
• Red Hat Enterprise Linux for x86_64 - Extended Update Support 7.5 x86_64
• Red Hat Enterprise Linux for x86_64 - Extended Update Support 7.4 x86_64
• Red Hat Enterprise Linux for x86_64 - Extended Update Support 7.3 x86_64
• Red Hat Enterprise Linux Server - AUS 7.7 x86_64
• Red Hat Enterprise Linux Server - AUS 7.6 x86_64
• Red Hat Enterprise Linux Server - AUS 7.4 x86_64
• Red Hat Enterprise Linux Server - AUS 7.3 x86_64
• Red Hat Enterprise Linux Workstation 7 x86_64
• Red Hat Enterprise Linux Desktop 7 x86_64
• Red Hat Enterprise Linux for IBM z Systems 7 s390x
• Red Hat Enterprise Linux for IBM z Systems - Extended Update Support 7.7 s390x
• Red Hat Enterprise Linux for IBM z Systems - Extended Update Support 7.6 s390x
• Red Hat Enterprise Linux for IBM z Systems - Extended Update Support 7.5 s390x
• Red Hat Enterprise Linux for IBM z Systems - Extended Update Support 7.4 s390x
• Red Hat Enterprise Linux for IBM z Systems - Extended Update Support 7.3 s390x
• Red Hat Enterprise Linux for Power, big endian 7 ppc64
• Red Hat Enterprise Linux for Power, big endian - Extended Update Support 7.7 ppc64
• Red Hat Enterprise Linux for Power, big endian - Extended Update Support 7.6 ppc64
• Red Hat Enterprise Linux for Power, big endian - Extended Update Support 7.5 ppc64
• Red Hat Enterprise Linux for Power, big endian - Extended Update Support 7.4 ppc64
• Red Hat Enterprise Linux for Power, big endian - Extended Update Support 7.3 ppc64
• Red Hat Enterprise Linux Server from RHUI 7 x86_64
• Red Hat Enterprise Linux Server - TUS 7.7 x86_64
• Red Hat Enterprise Linux Server - TUS 7.6 x86_64
• Red Hat Enterprise Linux Server - TUS 7.3 x86_64
• Red Hat Enterprise Linux for x86_64 - Update Services for SAP Solutions 7.7 x86_64
• Red Hat Enterprise Linux for x86_64 - Update Services for SAP Solutions 7.6 x86_64
• Red Hat Enterprise Linux for x86_64 - Update Services for SAP Solutions 7.4 x86_64
• Red Hat Enterprise Linux for x86_64 - Update Services for SAP Solutions 7.3 x86_64

Fixes

• BZ - 1065421 - Remove dependency on 'libvirt' RPM
• BZ - 1076290 - virt-who creat a null system in SAM server in esx mode
• BZ - 1082981 - Faild to add Hyper-V 2012 to SAM as virt-who communication with Hyper-V failed
• BZ - 1086517 - virt-who failed when testing against Satellite 5.6 due to missing folder /var/lib/virt-who in RHEL 7
• BZ - 1088732 - CVE-2014-0189 virt-who: plaintext hypervisor passwords in world-readable /etc/sysconfig/virt-who configuration file
• BZ - 1098448 - virt-who dies when the system is being unregistered
• BZ - 1122489 - virt-who rebase
• BZ - 1127965 - [RFE] Please add libvirt parameter for using Red Hat Enterprise Linux for Virtual Datacenter in kvm environments.
• BZ - 1153405 - virt-who can't work in the VDSM mode
• BZ - 1158759 - Wrong permission for configuration file /etc/sysconfig/virt-who on rhel7.1
• BZ - 1158803 - Can't display the running mode in the virt-who log
• BZ - 1158859 - virt-who uses wrong server when connecting to satellite
• BZ - 1159187 - "/etc/virt-who.d" hasn't been created by default.
• BZ - 1161434 - Take over one minute to stop/restart virt-who service in ESX mode.
• BZ - 1161607 - virt-who not able to decrypt encrypted password
• BZ - 1162049 - syslog.target depenancy
• BZ - 1163021 - Failed to send host/guest associate to SAM when virt-who run at esx mode
• BZ - 1168111 - [VDSM mode]Failed to send host/guest associate to SAM when there is a vm in the host
• BZ - 1168122 - virt-who incorrectly says that VM is from 'None' hypervisor

CVEs

• CVE-2014-0189

References

• http://www.redhat.com/security/updates/classification/#normal