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Red Hat Security Advisory

Synopsis: Important: qemu-kvm-rhev security and bug fix update
Advisory ID: RHSA-2019:3179-01
Product: Red Hat Virtualization
Advisory URL: https://access.redhat.com/errata/RHSA-2019:3179
Issue date: 2019-10-22
CVE Names: CVE-2019-12155 CVE-2019-14378
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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 Important. 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):

* QEMU: slirp: heap buffer overflow during packet reassembly
(CVE-2019-14378)

* QEMU: qxl: null pointer dereference while releasing spice resources
(CVE-2019-12155)

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):

* ccid: Fix incorrect dwProtocol advertisement of T=0 (BZ#1729880)

* QEMU gets stuck on resume/cont call from libvirt (BZ#1741937)

* [v2v] Migration performance regression (BZ#1743322)

* qemu, qemu-img fail to detect alignment with XFS and Gluster/XFS on 4k
block device (BZ#1745443)

* qemu-kvm: backport cpuidle-haltpoll support (BZ#1746282)

* qemu aborts in blockCommit: qemu-kvm: block.c:3486 (BZ#1750322)

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/2974891

After installing this update, shut down all running virtual machines. Once
all virtual machines have shut down, start them again for this update to
take effect.

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

1712670 – CVE-2019-12155 QEMU: qxl: null pointer dereference while releasing spice resources
1729880 – ccid: Fix incorrect dwProtocol advertisement of T=0 [rhel-7.7.z]
1734745 – CVE-2019-14378 QEMU: slirp: heap buffer overflow during packet reassembly
1743322 – [v2v] Migration performance regression [rhel-7.7.z]
1745443 – qemu, qemu-img fail to detect alignment with XFS and Gluster/XFS on 4k block device [rhel-7.7.z]
1746282 – qemu-kvm: backport cpuidle-haltpoll support [rhel-7.7.z]
1750322 – qemu aborts in blockCommit: qemu-kvm: block.c:3486 [rhel-7.7.z]

6. Package List:

Red Hat Virtualization 4 Management Agent for RHEL 7 Hosts:

Source:
qemu-kvm-rhev-2.12.0-33.el7_7.4.src.rpm

ppc64le:
qemu-img-rhev-2.12.0-33.el7_7.4.ppc64le.rpm
qemu-kvm-common-rhev-2.12.0-33.el7_7.4.ppc64le.rpm
qemu-kvm-rhev-2.12.0-33.el7_7.4.ppc64le.rpm
qemu-kvm-rhev-debuginfo-2.12.0-33.el7_7.4.ppc64le.rpm
qemu-kvm-tools-rhev-2.12.0-33.el7_7.4.ppc64le.rpm

x86_64:
qemu-img-rhev-2.12.0-33.el7_7.4.x86_64.rpm
qemu-kvm-common-rhev-2.12.0-33.el7_7.4.x86_64.rpm
qemu-kvm-rhev-2.12.0-33.el7_7.4.x86_64.rpm
qemu-kvm-rhev-debuginfo-2.12.0-33.el7_7.4.x86_64.rpm
qemu-kvm-tools-rhev-2.12.0-33.el7_7.4.x86_64.rpm

RHV-M 4.3:

Source:
qemu-kvm-rhev-2.12.0-33.el7_7.4.src.rpm

x86_64:
qemu-img-rhev-2.12.0-33.el7_7.4.x86_64.rpm
qemu-kvm-common-rhev-2.12.0-33.el7_7.4.x86_64.rpm
qemu-kvm-rhev-2.12.0-33.el7_7.4.x86_64.rpm
qemu-kvm-rhev-debuginfo-2.12.0-33.el7_7.4.x86_64.rpm
qemu-kvm-tools-rhev-2.12.0-33.el7_7.4.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-2019-12155
https://access.redhat.com/security/cve/CVE-2019-14378
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 2019 Red Hat, Inc.
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