ESB-2018.1802 - [RedHat] libvirt: Denial of service - Existing account 2018-06-20

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===========================================================================
             AUSCERT External Security Bulletin Redistribution

                               ESB-2018.1802
                       Low: libvirt security update
                               20 June 2018

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

        AusCERT Security Bulletin Summary
        ---------------------------------

Product:           libvirt
Publisher:         Red Hat
Operating System:  Red Hat Enterprise Linux Server 6
                   Red Hat Enterprise Linux WS/Desktop 6
Impact/Access:     Denial of Service -- Existing Account
Resolution:        Patch/Upgrade
CVE Names:         CVE-2018-5748 CVE-2018-1064 

Reference:         ESB-2018.1747
                   ESB-2018.1482
                   ESB-2018.0958
                   ESB-2018.0842
                   ESB-2018.0756

Original Bulletin: 
   https://access.redhat.com/errata/RHSA-2018:1929

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

Synopsis:          Low: libvirt security update
Advisory ID:       RHSA-2018:1929-01
Product:           Red Hat Enterprise Linux
Advisory URL:      https://access.redhat.com/errata/RHSA-2018:1929
Issue date:        2018-06-19
CVE Names:         CVE-2018-1064 CVE-2018-5748 
=====================================================================

1. Summary:

An update for libvirt is now available for Red Hat Enterprise Linux 6.

Red Hat Product Security has rated this update as having a security impact
of Low. A Common Vulnerability Scoring System (CVSS) base score, which
gives a detailed severity rating, is available for each vulnerability from
the CVE link(s) 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 contains 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.

Security Fix(es):

* libvirt: Resource exhaustion via qemuMonitorIORead() method
(CVE-2018-5748)

* libvirt: Incomplete fix for CVE-2018-5748 triggered by QEMU guest agent
(CVE-2018-1064)

For more details about the security issue(s), including the impact, a CVSS
score, and other related information, refer to the CVE page(s) listed in
the References section.

The CVE-2018-5748 issue was discovered by Daniel P. Berrange (Red Hat) and
Peter Krempa (Red Hat), and the CVE-2018-1064 issue was discovered by
Daniel P. Berrange (Red Hat).

Additional Changes:

For detailed information on changes in this release, see the Red Hat
Enterprise Linux 6.10 Release Notes and Red Hat Enterprise Linux 6.10
Technical Notes linked from the References section.

4. Solution:

For details on how to apply this update, which includes the changes
described in this advisory, refer to:

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

After installing the updated packages, libvirtd will be restarted
automatically.

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

1528396 - CVE-2018-5748 libvirt: Resource exhaustion via qemuMonitorIORead() method
1550672 - CVE-2018-1064 libvirt: Incomplete fix for CVE-2018-5748 triggered by QEMU guest agent

6. Package List:

Red Hat Enterprise Linux Desktop (v. 6):

Source:
libvirt-0.10.2-64.el6.src.rpm

i386:
libvirt-0.10.2-64.el6.i686.rpm
libvirt-client-0.10.2-64.el6.i686.rpm
libvirt-debuginfo-0.10.2-64.el6.i686.rpm
libvirt-python-0.10.2-64.el6.i686.rpm

x86_64:
libvirt-0.10.2-64.el6.x86_64.rpm
libvirt-client-0.10.2-64.el6.i686.rpm
libvirt-client-0.10.2-64.el6.x86_64.rpm
libvirt-debuginfo-0.10.2-64.el6.i686.rpm
libvirt-debuginfo-0.10.2-64.el6.x86_64.rpm
libvirt-python-0.10.2-64.el6.x86_64.rpm

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

i386:
libvirt-debuginfo-0.10.2-64.el6.i686.rpm
libvirt-devel-0.10.2-64.el6.i686.rpm

x86_64:
libvirt-debuginfo-0.10.2-64.el6.i686.rpm
libvirt-debuginfo-0.10.2-64.el6.x86_64.rpm
libvirt-devel-0.10.2-64.el6.i686.rpm
libvirt-devel-0.10.2-64.el6.x86_64.rpm
libvirt-lock-sanlock-0.10.2-64.el6.x86_64.rpm

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

Source:
libvirt-0.10.2-64.el6.src.rpm

x86_64:
libvirt-0.10.2-64.el6.x86_64.rpm
libvirt-client-0.10.2-64.el6.i686.rpm
libvirt-client-0.10.2-64.el6.x86_64.rpm
libvirt-debuginfo-0.10.2-64.el6.i686.rpm
libvirt-debuginfo-0.10.2-64.el6.x86_64.rpm
libvirt-python-0.10.2-64.el6.x86_64.rpm

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

x86_64:
libvirt-debuginfo-0.10.2-64.el6.i686.rpm
libvirt-debuginfo-0.10.2-64.el6.x86_64.rpm
libvirt-devel-0.10.2-64.el6.i686.rpm
libvirt-devel-0.10.2-64.el6.x86_64.rpm
libvirt-lock-sanlock-0.10.2-64.el6.x86_64.rpm

Red Hat Enterprise Linux Server (v. 6):

Source:
libvirt-0.10.2-64.el6.src.rpm

i386:
libvirt-0.10.2-64.el6.i686.rpm
libvirt-client-0.10.2-64.el6.i686.rpm
libvirt-debuginfo-0.10.2-64.el6.i686.rpm
libvirt-devel-0.10.2-64.el6.i686.rpm
libvirt-python-0.10.2-64.el6.i686.rpm

ppc64:
libvirt-0.10.2-64.el6.ppc64.rpm
libvirt-client-0.10.2-64.el6.ppc.rpm
libvirt-client-0.10.2-64.el6.ppc64.rpm
libvirt-debuginfo-0.10.2-64.el6.ppc.rpm
libvirt-debuginfo-0.10.2-64.el6.ppc64.rpm
libvirt-devel-0.10.2-64.el6.ppc.rpm
libvirt-devel-0.10.2-64.el6.ppc64.rpm
libvirt-python-0.10.2-64.el6.ppc64.rpm

s390x:
libvirt-0.10.2-64.el6.s390x.rpm
libvirt-client-0.10.2-64.el6.s390.rpm
libvirt-client-0.10.2-64.el6.s390x.rpm
libvirt-debuginfo-0.10.2-64.el6.s390.rpm
libvirt-debuginfo-0.10.2-64.el6.s390x.rpm
libvirt-devel-0.10.2-64.el6.s390.rpm
libvirt-devel-0.10.2-64.el6.s390x.rpm
libvirt-python-0.10.2-64.el6.s390x.rpm

x86_64:
libvirt-0.10.2-64.el6.x86_64.rpm
libvirt-client-0.10.2-64.el6.i686.rpm
libvirt-client-0.10.2-64.el6.x86_64.rpm
libvirt-debuginfo-0.10.2-64.el6.i686.rpm
libvirt-debuginfo-0.10.2-64.el6.x86_64.rpm
libvirt-devel-0.10.2-64.el6.i686.rpm
libvirt-devel-0.10.2-64.el6.x86_64.rpm
libvirt-python-0.10.2-64.el6.x86_64.rpm

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

x86_64:
libvirt-debuginfo-0.10.2-64.el6.x86_64.rpm
libvirt-lock-sanlock-0.10.2-64.el6.x86_64.rpm

Red Hat Enterprise Linux Workstation (v. 6):

Source:
libvirt-0.10.2-64.el6.src.rpm

i386:
libvirt-0.10.2-64.el6.i686.rpm
libvirt-client-0.10.2-64.el6.i686.rpm
libvirt-debuginfo-0.10.2-64.el6.i686.rpm
libvirt-devel-0.10.2-64.el6.i686.rpm
libvirt-python-0.10.2-64.el6.i686.rpm

x86_64:
libvirt-0.10.2-64.el6.x86_64.rpm
libvirt-client-0.10.2-64.el6.i686.rpm
libvirt-client-0.10.2-64.el6.x86_64.rpm
libvirt-debuginfo-0.10.2-64.el6.i686.rpm
libvirt-debuginfo-0.10.2-64.el6.x86_64.rpm
libvirt-devel-0.10.2-64.el6.i686.rpm
libvirt-devel-0.10.2-64.el6.x86_64.rpm
libvirt-python-0.10.2-64.el6.x86_64.rpm

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

x86_64:
libvirt-debuginfo-0.10.2-64.el6.x86_64.rpm
libvirt-lock-sanlock-0.10.2-64.el6.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/

7. References:

https://access.redhat.com/security/cve/CVE-2018-1064
https://access.redhat.com/security/cve/CVE-2018-5748
https://access.redhat.com/security/updates/classification/#low
https://access.redhat.com/documentation/en-US/red_hat_enterprise_linux/6/html/6.10_release_notes/index.html
https://access.redhat.com/documentation/en-US/red_hat_enterprise_linux/6/html/6.10_technical_notes/index.html

8. Contact:

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

Copyright 2018 Red Hat, Inc.
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