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Red Hat Enterprise Linux 6 RHSA-2018:1929-01 Low: Libvirt Security Fix

red hat
Calendar Grey June 19, 2018
Scroller Redhat
Explore the specifics surrounding the recent libvirt patch from Red Hat which focuses on mitigating minor security vulnerabilities relevant to corporate clients.
An update for libvirt is now available for Red Hat Enterprise Linux 6

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.

Summary

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.

Topics%20covered

Topics Covered

security advisory security update Red Hat Enterprise Linux CVE fix low severity libvirt resource exhaustion

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://docs.redhat.com/en/documentation/red_hat_enterprise_linux/6/html/6.10_release_notes/index.html https://docs.redhat.com/en/documentation/red_hat_enterprise_linux/6/html/6.10_technical_notes/index.html

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

Read the Full Advisory


Severity
low
Lowest
Low
Medium
High
Critical

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

Topic

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 impactof Low. A Common Vulnerability Scoring System (CVSS) base score, whichgives a detailed severity rating, is available for each vulnerability fromthe CVE link(s) in the References section.

Topics%20covered

Topics Covered

security advisory security update Red Hat Enterprise Linux CVE fix low severity libvirt resource exhaustion

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

Bugs Fixed

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

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