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Red Hat Security Advisory

Synopsis: Low: qemu-kvm-rhev security, bug fix, and enhancement update
Advisory ID: RHSA-2020:3267-01
Product: Red Hat Virtualization
Advisory URL: https://access.redhat.com/errata/RHSA-2020:3267
Issue date: 2020-08-03
CVE Names: CVE-2019-20382
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1. Summary:

An update for qemu-kvm-rhev is now available for Red Hat Virtualization 4
for Red Hat Enterprise Linux 7 and Red Hat Virtualization Engine 4.3.

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:

RHV-M 4.3 – x86_64
Red Hat Virtualization 4 Management Agent for RHEL 7 Hosts – ppc64le, x86_64

3. Description:

KVM (Kernel-based Virtual Machine) is a full virtualization solution for
Linux on a variety of architectures. The qemu-kvm-rhev packages provide the
user-space component for running virtual machines that use KVM in
environments managed by Red Hat products.

Security Fix(es):

* CVE-2019-20382 QEMU: vnc: memory leakage upon disconnect

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

Bug Fix(es):

* Add support for newer glusterfs (BZ#1802216)

* Backport: Passthrough host CPU microcode version to KVM guest if using
CPU passthrough to RHEL 7.7/7.8 (BZ#1791653)

* After hot unplug virtio-net and vfio nic, hot plug vfio-pci device fails
in Win2019 guest (BZ#1721403)

* qemu-kvm-rhev: Qemu: seccomp: blacklist is not applied to all threads
(BZ#1618504)

* Fix overzealous I/O request splitting performance regression (BZ#1819253)

4. 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/2974891

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

1721403 – After hot unplug virtio-net and vfio nic, hot plug vfio-pci device fails in Win2019 guest
1791653 – Backport: Passthrough host CPU microcode version to KVM guest if using CPU passthrough to RHEL 7.7/7.8
1802216 – Add support for newer glusterfs
1810390 – CVE-2019-20382 QEMU: vnc: memory leakage upon disconnect
1819253 – Fix overzealous I/O request splitting performance regression

6. Package List:

Red Hat Virtualization 4 Management Agent for RHEL 7 Hosts:

Source:
qemu-kvm-rhev-2.12.0-48.el7.src.rpm

ppc64le:
qemu-img-rhev-2.12.0-48.el7.ppc64le.rpm
qemu-kvm-common-rhev-2.12.0-48.el7.ppc64le.rpm
qemu-kvm-rhev-2.12.0-48.el7.ppc64le.rpm
qemu-kvm-rhev-debuginfo-2.12.0-48.el7.ppc64le.rpm
qemu-kvm-tools-rhev-2.12.0-48.el7.ppc64le.rpm

x86_64:
qemu-img-rhev-2.12.0-48.el7.x86_64.rpm
qemu-kvm-common-rhev-2.12.0-48.el7.x86_64.rpm
qemu-kvm-rhev-2.12.0-48.el7.x86_64.rpm
qemu-kvm-rhev-debuginfo-2.12.0-48.el7.x86_64.rpm
qemu-kvm-tools-rhev-2.12.0-48.el7.x86_64.rpm

RHV-M 4.3:

Source:
qemu-kvm-rhev-2.12.0-48.el7.src.rpm

x86_64:
qemu-img-rhev-2.12.0-48.el7.x86_64.rpm
qemu-kvm-common-rhev-2.12.0-48.el7.x86_64.rpm
qemu-kvm-rhev-2.12.0-48.el7.x86_64.rpm
qemu-kvm-rhev-debuginfo-2.12.0-48.el7.x86_64.rpm
qemu-kvm-tools-rhev-2.12.0-48.el7.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-2019-20382
https://access.redhat.com/security/updates/classification/#low

8. Contact:

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

Copyright 2020 Red Hat, Inc.
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