Articles / Red Hat: Security update fo…

Red Hat: Security update for libvirt

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. A flaw was found in the way libvirtd handled connection cleanup (when a connection was being closed) under certain error conditions. A remote attacker able to establish a read-only connection to libvirtd could use this flaw to crash libvirtd or, potentially, execute arbitrary code with the privileges of the root user.

Updated packages are available from ftp.redhat.com.

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=====================================================================
                  Red Hat Security Advisory

Synopsis:          Important: libvirt security update
Advisory ID:       RHSA-2013:0199-01
Product:           Red Hat Enterprise Linux
Advisory URL:      https://rhn.redhat.com/errata/RHSA-2013-0199.html
Issue date:        2013-01-28
CVE Names:         CVE-2013-0170 
=====================================================================

1. Summary:

Updated libvirt packages that fix one security issue are now available for
Red Hat Enterprise Linux 6.

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.

2. Relevant releases/architectures:

Red Hat Enterprise Linux Desktop (v. 6) - i386, x86_64
Red Hat Enterprise Linux Desktop Optional (v. 6) - i386, x86_64
Red Hat Enterprise Linux HPC Node (v. 6) - x86_64
Red Hat Enterprise Linux HPC Node Optional (v. 6) - x86_64
Red Hat Enterprise Linux Server (v. 6) - i386, ppc64, s390x, x86_64
Red Hat Enterprise Linux Server Optional (v. 6) - x86_64
Red Hat Enterprise Linux Workstation (v. 6) - i386, x86_64
Red Hat Enterprise Linux Workstation Optional (v. 6) - 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.

A flaw was found in the way libvirtd handled connection cleanup (when a
connection was being closed) under certain error conditions. A remote
attacker able to establish a read-only connection to libvirtd could use
this flaw to crash libvirtd or, potentially, execute arbitrary code with
the privileges of the root user. (CVE-2013-0170)

This issue was discovered by Tingting Zheng of Red Hat.

All users of libvirt are advised to upgrade to these updated packages,
which contain a backported patch to correct this issue. 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/knowledge/articles/11258

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

893450 - CVE-2013-0170 libvirt: use-after-free in virNetMessageFree()

6. Package List:

Red Hat Enterprise Linux Desktop (v. 6):

Source:
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/6Client/en/os/SRPMS/libvirt-0.9.10-21.el6_3.8.src.rpm

i386:
libvirt-0.9.10-21.el6_3.8.i686.rpm
libvirt-client-0.9.10-21.el6_3.8.i686.rpm
libvirt-debuginfo-0.9.10-21.el6_3.8.i686.rpm
libvirt-python-0.9.10-21.el6_3.8.i686.rpm

x86_64:
libvirt-0.9.10-21.el6_3.8.x86_64.rpm
libvirt-client-0.9.10-21.el6_3.8.i686.rpm
libvirt-client-0.9.10-21.el6_3.8.x86_64.rpm
libvirt-debuginfo-0.9.10-21.el6_3.8.i686.rpm
libvirt-debuginfo-0.9.10-21.el6_3.8.x86_64.rpm
libvirt-python-0.9.10-21.el6_3.8.x86_64.rpm

Red Hat Enterprise Linux Desktop Optional (v. 6):

Source:
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/6Client/en/os/SRPMS/libvirt-0.9.10-21.el6_3.8.src.rpm

i386:
libvirt-debuginfo-0.9.10-21.el6_3.8.i686.rpm
libvirt-devel-0.9.10-21.el6_3.8.i686.rpm

x86_64:
libvirt-debuginfo-0.9.10-21.el6_3.8.i686.rpm
libvirt-debuginfo-0.9.10-21.el6_3.8.x86_64.rpm
libvirt-devel-0.9.10-21.el6_3.8.i686.rpm
libvirt-devel-0.9.10-21.el6_3.8.x86_64.rpm
libvirt-lock-sanlock-0.9.10-21.el6_3.8.x86_64.rpm

Red Hat Enterprise Linux HPC Node (v. 6):

Source:
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/6ComputeNode/en/os/SRPMS/libvirt-0.9.10-21.el6_3.8.src.rpm

x86_64:
libvirt-0.9.10-21.el6_3.8.x86_64.rpm
libvirt-client-0.9.10-21.el6_3.8.i686.rpm
libvirt-client-0.9.10-21.el6_3.8.x86_64.rpm
libvirt-debuginfo-0.9.10-21.el6_3.8.i686.rpm
libvirt-debuginfo-0.9.10-21.el6_3.8.x86_64.rpm
libvirt-python-0.9.10-21.el6_3.8.x86_64.rpm

Red Hat Enterprise Linux HPC Node Optional (v. 6):

Source:
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/6ComputeNode/en/os/SRPMS/libvirt-0.9.10-21.el6_3.8.src.rpm

x86_64:
libvirt-debuginfo-0.9.10-21.el6_3.8.i686.rpm
libvirt-debuginfo-0.9.10-21.el6_3.8.x86_64.rpm
libvirt-devel-0.9.10-21.el6_3.8.i686.rpm
libvirt-devel-0.9.10-21.el6_3.8.x86_64.rpm
libvirt-lock-sanlock-0.9.10-21.el6_3.8.x86_64.rpm

Red Hat Enterprise Linux Server (v. 6):

Source:
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/6Server/en/os/SRPMS/libvirt-0.9.10-21.el6_3.8.src.rpm

i386:
libvirt-0.9.10-21.el6_3.8.i686.rpm
libvirt-client-0.9.10-21.el6_3.8.i686.rpm
libvirt-debuginfo-0.9.10-21.el6_3.8.i686.rpm
libvirt-devel-0.9.10-21.el6_3.8.i686.rpm
libvirt-python-0.9.10-21.el6_3.8.i686.rpm

ppc64:
libvirt-0.9.10-21.el6_3.8.ppc64.rpm
libvirt-client-0.9.10-21.el6_3.8.ppc.rpm
libvirt-client-0.9.10-21.el6_3.8.ppc64.rpm
libvirt-debuginfo-0.9.10-21.el6_3.8.ppc.rpm
libvirt-debuginfo-0.9.10-21.el6_3.8.ppc64.rpm
libvirt-devel-0.9.10-21.el6_3.8.ppc.rpm
libvirt-devel-0.9.10-21.el6_3.8.ppc64.rpm
libvirt-python-0.9.10-21.el6_3.8.ppc64.rpm

s390x:
libvirt-0.9.10-21.el6_3.8.s390x.rpm
libvirt-client-0.9.10-21.el6_3.8.s390.rpm
libvirt-client-0.9.10-21.el6_3.8.s390x.rpm
libvirt-debuginfo-0.9.10-21.el6_3.8.s390.rpm
libvirt-debuginfo-0.9.10-21.el6_3.8.s390x.rpm
libvirt-devel-0.9.10-21.el6_3.8.s390.rpm
libvirt-devel-0.9.10-21.el6_3.8.s390x.rpm
libvirt-python-0.9.10-21.el6_3.8.s390x.rpm

x86_64:
libvirt-0.9.10-21.el6_3.8.x86_64.rpm
libvirt-client-0.9.10-21.el6_3.8.i686.rpm
libvirt-client-0.9.10-21.el6_3.8.x86_64.rpm
libvirt-debuginfo-0.9.10-21.el6_3.8.i686.rpm
libvirt-debuginfo-0.9.10-21.el6_3.8.x86_64.rpm
libvirt-devel-0.9.10-21.el6_3.8.i686.rpm
libvirt-devel-0.9.10-21.el6_3.8.x86_64.rpm
libvirt-python-0.9.10-21.el6_3.8.x86_64.rpm

Red Hat Enterprise Linux Server Optional (v. 6):

Source:
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/6Server/en/os/SRPMS/libvirt-0.9.10-21.el6_3.8.src.rpm

x86_64:
libvirt-debuginfo-0.9.10-21.el6_3.8.x86_64.rpm
libvirt-lock-sanlock-0.9.10-21.el6_3.8.x86_64.rpm

Red Hat Enterprise Linux Workstation (v. 6):

Source:
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/6Workstation/en/os/SRPMS/libvirt-0.9.10-21.el6_3.8.src.rpm

i386:
libvirt-0.9.10-21.el6_3.8.i686.rpm
libvirt-client-0.9.10-21.el6_3.8.i686.rpm
libvirt-debuginfo-0.9.10-21.el6_3.8.i686.rpm
libvirt-devel-0.9.10-21.el6_3.8.i686.rpm
libvirt-python-0.9.10-21.el6_3.8.i686.rpm

x86_64:
libvirt-0.9.10-21.el6_3.8.x86_64.rpm
libvirt-client-0.9.10-21.el6_3.8.i686.rpm
libvirt-client-0.9.10-21.el6_3.8.x86_64.rpm
libvirt-debuginfo-0.9.10-21.el6_3.8.i686.rpm
libvirt-debuginfo-0.9.10-21.el6_3.8.x86_64.rpm
libvirt-devel-0.9.10-21.el6_3.8.i686.rpm
libvirt-devel-0.9.10-21.el6_3.8.x86_64.rpm
libvirt-python-0.9.10-21.el6_3.8.x86_64.rpm

Red Hat Enterprise Linux Workstation Optional (v. 6):

Source:
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/6Workstation/en/os/SRPMS/libvirt-0.9.10-21.el6_3.8.src.rpm

x86_64:
libvirt-debuginfo-0.9.10-21.el6_3.8.x86_64.rpm
libvirt-lock-sanlock-0.9.10-21.el6_3.8.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-2013-0170.html
https://access.redhat.com/security/updates/classification/#important

8. Contact:

The Red Hat security contact is <secalert@redhat.com>.  More contact
details at https://access.redhat.com/security/team/contact/

Copyright 2013 Red Hat, Inc.
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