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[RHSA-2014:0914-01] Moderate: libvirt security and bug fix update

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Red Hat Security Advisory

 

Synopsis: Moderate: libvirt security and bug fix update

Advisory ID: RHSA-2014:0914-01

Product: Red Hat Enterprise Linux

Advisory URL: https://rhn.redhat.com/errata/RHSA-2014-0914.html

Issue date: 2014-07-22

CVE Names: CVE-2014-0179

=====================================================================

 

1. Summary:

 

Updated libvirt packages that fix one security issue and three bugs are now

available for Red Hat Enterprise Linux 7.

 

The Red Hat Security Response Team 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.

 

2. Relevant releases/architectures:

 

Red Hat Enterprise Linux Client (v. 7) - x86_64

Red Hat Enterprise Linux Client Optional (v. 7) - x86_64

Red Hat Enterprise Linux ComputeNode (v. 7) - x86_64

Red Hat Enterprise Linux ComputeNode Optional (v. 7) - x86_64

Red Hat Enterprise Linux Server (v. 7) - ppc64, s390x, x86_64

Red Hat Enterprise Linux Server Optional (v. 7) - ppc64, s390x, x86_64

Red Hat Enterprise Linux Workstation (v. 7) - x86_64

Red Hat Enterprise Linux Workstation Optional (v. 7) - x86_64

 

3. Description:

 

The libvirt library is a C API for managing and interacting with the

virtualization capabilities of Linux and other operating systems.

In addition, libvirt provides tools for remote management of

virtualized systems.

 

It was found that libvirt passes the XML_PARSE_NOENT flag when parsing XML

documents using the libxml2 library, in which case all XML entities in the

parsed documents are expanded. A user able to force libvirtd to parse an

XML document with an entity pointing to a file could use this flaw to read

the contents of that file; parsing an XML document with an entity pointing

to a special file that blocks on read access could cause libvirtd to hang

indefinitely, resulting in a denial of service on the system.

(CVE-2014-0179)

 

Red Hat would like to thank the upstream Libvirt project for reporting this

issue. Upstream acknowledges Daniel P. Berrange and Richard Jones as the

original reporters.

 

This update also fixes the following bugs:

 

* A previous update of the libvirt package introduced an error; a

SIG_SETMASK argument was incorrectly replaced by a SIG_BLOCK argument after

the poll() system call. Consequently, the SIGCHLD signal could be

permanently blocked, which caused signal masks to not return to their

original values and defunct processes to be generated. With this update,

the original signal masks are restored and defunct processes are no longer

generated. (BZ#1112689)

 

* An attempt to start a domain that did not exist caused network filters to

be locked for read-only access. As a consequence, when trying to gain

read-write access, a deadlock occurred. This update applies a patch to fix

this bug and an attempt to start a non-existent domain no longer causes a

deadlock in the described scenario. (BZ#1112690)

 

* Previously, the libvirtd daemon was binding only to addresses that were

configured on certain network interfaces. When libvirtd started before the

IPv4 addresses had been configured, libvirtd listened only on the IPv6

addresses. The daemon has been modified to not require an address to be

configured when binding to a wildcard address, such as "0.0.0.0" or "::".

As a result, libvirtd binds to both IPv4 and IPv6 addresses as expected.

(BZ#1112692)

 

Users of libvirt are advised to upgrade to these updated packages, which

fix these bugs. After installing the updated packages, libvirtd will be

restarted automatically.

 

4. Solution:

 

Before applying this update, make sure all previously released errata

relevant to your system have been applied.

 

This update is available via the Red Hat Network. Details on how to use the

Red Hat Network to apply this update are available at

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

 

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

 

1088290 - CVE-2014-0179 libvirt: unsafe parsing of XML documents allows libvirt DoS and/or arbitrary file read

1112689 - use of tls with libvirt.so can leave zombie processes

1112690 - nwfilter deadlock

1112692 - libvirt binds only to ipv6

 

6. Package List:

 

Red Hat Enterprise Linux Client (v. 7):

 

Source:

libvirt-1.1.1-29.el7_0.1.src.rpm

 

x86_64:

libvirt-1.1.1-29.el7_0.1.x86_64.rpm

libvirt-client-1.1.1-29.el7_0.1.i686.rpm

libvirt-client-1.1.1-29.el7_0.1.x86_64.rpm

libvirt-daemon-1.1.1-29.el7_0.1.x86_64.rpm

libvirt-daemon-config-network-1.1.1-29.el7_0.1.x86_64.rpm

libvirt-daemon-config-nwfilter-1.1.1-29.el7_0.1.x86_64.rpm

libvirt-daemon-driver-interface-1.1.1-29.el7_0.1.x86_64.rpm

libvirt-daemon-driver-lxc-1.1.1-29.el7_0.1.x86_64.rpm

libvirt-daemon-driver-network-1.1.1-29.el7_0.1.x86_64.rpm

libvirt-daemon-driver-nodedev-1.1.1-29.el7_0.1.x86_64.rpm

libvirt-daemon-driver-nwfilter-1.1.1-29.el7_0.1.x86_64.rpm

libvirt-daemon-driver-qemu-1.1.1-29.el7_0.1.x86_64.rpm

libvirt-daemon-driver-secret-1.1.1-29.el7_0.1.x86_64.rpm

libvirt-daemon-driver-storage-1.1.1-29.el7_0.1.x86_64.rpm

libvirt-daemon-kvm-1.1.1-29.el7_0.1.x86_64.rpm

libvirt-debuginfo-1.1.1-29.el7_0.1.i686.rpm

libvirt-debuginfo-1.1.1-29.el7_0.1.x86_64.rpm

libvirt-python-1.1.1-29.el7_0.1.x86_64.rpm

 

Red Hat Enterprise Linux Client Optional (v. 7):

 

x86_64:

libvirt-daemon-lxc-1.1.1-29.el7_0.1.x86_64.rpm

libvirt-debuginfo-1.1.1-29.el7_0.1.i686.rpm

libvirt-debuginfo-1.1.1-29.el7_0.1.x86_64.rpm

libvirt-devel-1.1.1-29.el7_0.1.i686.rpm

libvirt-devel-1.1.1-29.el7_0.1.x86_64.rpm

libvirt-docs-1.1.1-29.el7_0.1.x86_64.rpm

libvirt-lock-sanlock-1.1.1-29.el7_0.1.x86_64.rpm

libvirt-login-shell-1.1.1-29.el7_0.1.x86_64.rpm

 

Red Hat Enterprise Linux ComputeNode (v. 7):

 

Source:

libvirt-1.1.1-29.el7_0.1.src.rpm

 

x86_64:

libvirt-client-1.1.1-29.el7_0.1.i686.rpm

libvirt-client-1.1.1-29.el7_0.1.x86_64.rpm

libvirt-debuginfo-1.1.1-29.el7_0.1.i686.rpm

libvirt-debuginfo-1.1.1-29.el7_0.1.x86_64.rpm

 

Red Hat Enterprise Linux ComputeNode Optional (v. 7):

 

x86_64:

libvirt-1.1.1-29.el7_0.1.x86_64.rpm

libvirt-daemon-1.1.1-29.el7_0.1.x86_64.rpm

libvirt-daemon-config-network-1.1.1-29.el7_0.1.x86_64.rpm

libvirt-daemon-config-nwfilter-1.1.1-29.el7_0.1.x86_64.rpm

libvirt-daemon-driver-interface-1.1.1-29.el7_0.1.x86_64.rpm

libvirt-daemon-driver-lxc-1.1.1-29.el7_0.1.x86_64.rpm

libvirt-daemon-driver-network-1.1.1-29.el7_0.1.x86_64.rpm

libvirt-daemon-driver-nodedev-1.1.1-29.el7_0.1.x86_64.rpm

libvirt-daemon-driver-nwfilter-1.1.1-29.el7_0.1.x86_64.rpm

libvirt-daemon-driver-qemu-1.1.1-29.el7_0.1.x86_64.rpm

libvirt-daemon-driver-secret-1.1.1-29.el7_0.1.x86_64.rpm

libvirt-daemon-driver-storage-1.1.1-29.el7_0.1.x86_64.rpm

libvirt-daemon-kvm-1.1.1-29.el7_0.1.x86_64.rpm

libvirt-daemon-lxc-1.1.1-29.el7_0.1.x86_64.rpm

libvirt-debuginfo-1.1.1-29.el7_0.1.i686.rpm

libvirt-debuginfo-1.1.1-29.el7_0.1.x86_64.rpm

libvirt-devel-1.1.1-29.el7_0.1.i686.rpm

libvirt-devel-1.1.1-29.el7_0.1.x86_64.rpm

libvirt-docs-1.1.1-29.el7_0.1.x86_64.rpm

libvirt-lock-sanlock-1.1.1-29.el7_0.1.x86_64.rpm

libvirt-login-shell-1.1.1-29.el7_0.1.x86_64.rpm

libvirt-python-1.1.1-29.el7_0.1.x86_64.rpm

 

Red Hat Enterprise Linux Server (v. 7):

 

Source:

libvirt-1.1.1-29.el7_0.1.src.rpm

 

ppc64:

libvirt-1.1.1-29.el7_0.1.ppc64.rpm

libvirt-client-1.1.1-29.el7_0.1.ppc.rpm

libvirt-client-1.1.1-29.el7_0.1.ppc64.rpm

libvirt-daemon-1.1.1-29.el7_0.1.ppc64.rpm

libvirt-daemon-config-network-1.1.1-29.el7_0.1.ppc64.rpm

libvirt-daemon-config-nwfilter-1.1.1-29.el7_0.1.ppc64.rpm

libvirt-daemon-driver-interface-1.1.1-29.el7_0.1.ppc64.rpm

libvirt-daemon-driver-lxc-1.1.1-29.el7_0.1.ppc64.rpm

libvirt-daemon-driver-network-1.1.1-29.el7_0.1.ppc64.rpm

libvirt-daemon-driver-nodedev-1.1.1-29.el7_0.1.ppc64.rpm

libvirt-daemon-driver-nwfilter-1.1.1-29.el7_0.1.ppc64.rpm

libvirt-daemon-driver-secret-1.1.1-29.el7_0.1.ppc64.rpm

libvirt-daemon-driver-storage-1.1.1-29.el7_0.1.ppc64.rpm

libvirt-debuginfo-1.1.1-29.el7_0.1.ppc.rpm

libvirt-debuginfo-1.1.1-29.el7_0.1.ppc64.rpm

libvirt-devel-1.1.1-29.el7_0.1.ppc.rpm

libvirt-devel-1.1.1-29.el7_0.1.ppc64.rpm

libvirt-docs-1.1.1-29.el7_0.1.ppc64.rpm

libvirt-python-1.1.1-29.el7_0.1.ppc64.rpm

 

s390x:

libvirt-1.1.1-29.el7_0.1.s390x.rpm

libvirt-client-1.1.1-29.el7_0.1.s390.rpm

libvirt-client-1.1.1-29.el7_0.1.s390x.rpm

libvirt-daemon-1.1.1-29.el7_0.1.s390x.rpm

libvirt-daemon-config-network-1.1.1-29.el7_0.1.s390x.rpm

libvirt-daemon-config-nwfilter-1.1.1-29.el7_0.1.s390x.rpm

libvirt-daemon-driver-interface-1.1.1-29.el7_0.1.s390x.rpm

libvirt-daemon-driver-lxc-1.1.1-29.el7_0.1.s390x.rpm

libvirt-daemon-driver-network-1.1.1-29.el7_0.1.s390x.rpm

libvirt-daemon-driver-nodedev-1.1.1-29.el7_0.1.s390x.rpm

libvirt-daemon-driver-nwfilter-1.1.1-29.el7_0.1.s390x.rpm

libvirt-daemon-driver-secret-1.1.1-29.el7_0.1.s390x.rpm

libvirt-daemon-driver-storage-1.1.1-29.el7_0.1.s390x.rpm

libvirt-debuginfo-1.1.1-29.el7_0.1.s390.rpm

libvirt-debuginfo-1.1.1-29.el7_0.1.s390x.rpm

libvirt-devel-1.1.1-29.el7_0.1.s390.rpm

libvirt-devel-1.1.1-29.el7_0.1.s390x.rpm

libvirt-docs-1.1.1-29.el7_0.1.s390x.rpm

libvirt-python-1.1.1-29.el7_0.1.s390x.rpm

 

x86_64:

libvirt-1.1.1-29.el7_0.1.x86_64.rpm

libvirt-client-1.1.1-29.el7_0.1.i686.rpm

libvirt-client-1.1.1-29.el7_0.1.x86_64.rpm

libvirt-daemon-1.1.1-29.el7_0.1.x86_64.rpm

libvirt-daemon-config-network-1.1.1-29.el7_0.1.x86_64.rpm

libvirt-daemon-config-nwfilter-1.1.1-29.el7_0.1.x86_64.rpm

libvirt-daemon-driver-interface-1.1.1-29.el7_0.1.x86_64.rpm

libvirt-daemon-driver-lxc-1.1.1-29.el7_0.1.x86_64.rpm

libvirt-daemon-driver-network-1.1.1-29.el7_0.1.x86_64.rpm

libvirt-daemon-driver-nodedev-1.1.1-29.el7_0.1.x86_64.rpm

libvirt-daemon-driver-nwfilter-1.1.1-29.el7_0.1.x86_64.rpm

libvirt-daemon-driver-qemu-1.1.1-29.el7_0.1.x86_64.rpm

libvirt-daemon-driver-secret-1.1.1-29.el7_0.1.x86_64.rpm

libvirt-daemon-driver-storage-1.1.1-29.el7_0.1.x86_64.rpm

libvirt-daemon-kvm-1.1.1-29.el7_0.1.x86_64.rpm

libvirt-debuginfo-1.1.1-29.el7_0.1.i686.rpm

libvirt-debuginfo-1.1.1-29.el7_0.1.x86_64.rpm

libvirt-devel-1.1.1-29.el7_0.1.i686.rpm

libvirt-devel-1.1.1-29.el7_0.1.x86_64.rpm

libvirt-docs-1.1.1-29.el7_0.1.x86_64.rpm

libvirt-python-1.1.1-29.el7_0.1.x86_64.rpm

 

Red Hat Enterprise Linux Server Optional (v. 7):

 

ppc64:

libvirt-daemon-lxc-1.1.1-29.el7_0.1.ppc64.rpm

libvirt-debuginfo-1.1.1-29.el7_0.1.ppc64.rpm

libvirt-login-shell-1.1.1-29.el7_0.1.ppc64.rpm

 

s390x:

libvirt-daemon-lxc-1.1.1-29.el7_0.1.s390x.rpm

libvirt-debuginfo-1.1.1-29.el7_0.1.s390x.rpm

libvirt-login-shell-1.1.1-29.el7_0.1.s390x.rpm

 

x86_64:

libvirt-daemon-lxc-1.1.1-29.el7_0.1.x86_64.rpm

libvirt-debuginfo-1.1.1-29.el7_0.1.x86_64.rpm

libvirt-lock-sanlock-1.1.1-29.el7_0.1.x86_64.rpm

libvirt-login-shell-1.1.1-29.el7_0.1.x86_64.rpm

 

Red Hat Enterprise Linux Workstation (v. 7):

 

Source:

libvirt-1.1.1-29.el7_0.1.src.rpm

 

x86_64:

libvirt-1.1.1-29.el7_0.1.x86_64.rpm

libvirt-client-1.1.1-29.el7_0.1.i686.rpm

libvirt-client-1.1.1-29.el7_0.1.x86_64.rpm

libvirt-daemon-1.1.1-29.el7_0.1.x86_64.rpm

libvirt-daemon-config-network-1.1.1-29.el7_0.1.x86_64.rpm

libvirt-daemon-config-nwfilter-1.1.1-29.el7_0.1.x86_64.rpm

libvirt-daemon-driver-interface-1.1.1-29.el7_0.1.x86_64.rpm

libvirt-daemon-driver-lxc-1.1.1-29.el7_0.1.x86_64.rpm

libvirt-daemon-driver-network-1.1.1-29.el7_0.1.x86_64.rpm

libvirt-daemon-driver-nodedev-1.1.1-29.el7_0.1.x86_64.rpm

libvirt-daemon-driver-nwfilter-1.1.1-29.el7_0.1.x86_64.rpm

libvirt-daemon-driver-qemu-1.1.1-29.el7_0.1.x86_64.rpm

libvirt-daemon-driver-secret-1.1.1-29.el7_0.1.x86_64.rpm

libvirt-daemon-driver-storage-1.1.1-29.el7_0.1.x86_64.rpm

libvirt-daemon-kvm-1.1.1-29.el7_0.1.x86_64.rpm

libvirt-debuginfo-1.1.1-29.el7_0.1.i686.rpm

libvirt-debuginfo-1.1.1-29.el7_0.1.x86_64.rpm

libvirt-devel-1.1.1-29.el7_0.1.i686.rpm

libvirt-devel-1.1.1-29.el7_0.1.x86_64.rpm

libvirt-docs-1.1.1-29.el7_0.1.x86_64.rpm

libvirt-python-1.1.1-29.el7_0.1.x86_64.rpm

 

Red Hat Enterprise Linux Workstation Optional (v. 7):

 

x86_64:

libvirt-daemon-lxc-1.1.1-29.el7_0.1.x86_64.rpm

libvirt-debuginfo-1.1.1-29.el7_0.1.x86_64.rpm

libvirt-lock-sanlock-1.1.1-29.el7_0.1.x86_64.rpm

libvirt-login-shell-1.1.1-29.el7_0.1.x86_64.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/#package

 

7. References:

 

https://www.redhat.com/security/data/cve/CVE-2014-0179.html

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 2014 Red Hat, Inc.

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