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AUSCERT External Security Bulletin Redistribution
ESB-2020.2656
qemu-kvm-rhev security, bug fix, and enhancement update
4 August 2020
===========================================================================
AusCERT Security Bulletin Summary
---------------------------------
Product: qemu-kvm-rhev
Publisher: Red Hat
Operating System: Red Hat Enterprise Linux Server 7
Impact/Access: Denial of Service -- Existing Account
Resolution: Patch/Upgrade
CVE Names: CVE-2019-20382
Reference: ESB-2020.2241
Original Bulletin:
https://access.redhat.com/errata/RHSA-2020:3267
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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
=====================================================================
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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