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Red Hat: RHSA-2020-1216-01 Important: QEMU-KVM-RHEV Security Issues

red hat
Calendar Grey March 31, 2020
Scroller Redhat
The latest qemu-kvm-rhev update tackles critical vulnerabilities within Red Hat Virtualization, accompanied by several bug resolutions.
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

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.

Summary

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: block: iscsi: OOB heap access via an unexpected response of iSCSI Server (CVE-2020-1711)
* 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):
* After host update, older windows clients have large time drift (BZ#1639098)
* [v2v] Migration performance regression (BZ#1648622)
* Live storage migration fails with: TimeoutError: Timed out during operation: cannot acquire state change lock (held by monitor=remoteDispatchConnectGetAllDomainStats) and the VM becomes 'Not Responding' (BZ#1665256)
* QEMU gets stuck on resume/cont call from libvirt (BZ#1673546)
* [Intel 7.8 Bug] [KVM][CLX] CPUID_7_0_EDX_ARCH_CAPABILITIES is not enabled in VM qemu-kvm-rhev (BZ#1709972)
* qemu aborts in blockCommit: qemu-kvm: block.c:3486: bdrv_replace_node: Assertion `!({ _Static_assert(!(sizeof(*&from->in_flight) > 8), "not expecting: " "sizeof(*&from->in_flight) > ATOMIC_REG_SIZE"); __atomic_load_n(&from->in_flight, 0); })' failed. (BZ#1711643)
* ccid: Fix incorrect dwProtocol advertisement of T=0 (BZ#1721522)
* Fail to migrate a rhel6.10-mt7.6 guest with dimm device (BZ#1724048)
* qemu-kvm: backport cpuidle-haltpoll support (BZ#1734502)
* qemu, qemu-img fail to detect alignment with XFS and Gluster/XFS on 4k block device (BZ#1743365)
* ISST-LTE:RHV4.3 on RHEL7.6 kvm host:Power8:Tuleta-L:lotg7: call traces dumped on guest while performing guest migration (qemu-kvm-rhev) (BZ#1743508)
* qemu coredump: qemu-kvm: block/create.c:68: qmp_blockdev_create: Assertion `drv' failed (BZ#1746224)
* [Data plane]virtio_scsi_ctx_check: Assertion `blk_get_aio_context(d->conf.blk) == s->ctx' failed when unplug a device that running block stream on it (BZ#1764120)
* qemu-kvm crashes when Windows VM is migrated with multiqueue (BZ#1775251)
Enhancement(s):
* [Intel 7.8 FEAT] MDS_NO exposure to guest - qemu-kvm-rhev (BZ#1716726)

Topics%20covered

Topics Covered

security advisory Red Hat heap overflow null pointer qemu-kvm-rhev iscsi access

References

https://access.redhat.com/security/cve/CVE-2019-12155 https://access.redhat.com/security/cve/CVE-2019-14378 https://access.redhat.com/security/cve/CVE-2020-1711 https://access.redhat.com/security/updates/classification#important

Package List

Red Hat Virtualization 4 Management Agent for RHEL 7 Hosts:
Source: qemu-kvm-rhev-2.12.0-44.el7.src.rpm
ppc64le: qemu-img-rhev-2.12.0-44.el7.ppc64le.rpm qemu-kvm-common-rhev-2.12.0-44.el7.ppc64le.rpm qemu-kvm-rhev-2.12.0-44.el7.ppc64le.rpm qemu-kvm-rhev-debuginfo-2.12.0-44.el7.ppc64le.rpm qemu-kvm-tools-rhev-2.12.0-44.el7.ppc64le.rpm
x86_64: qemu-img-rhev-2.12.0-44.el7.x86_64.rpm qemu-kvm-common-rhev-2.12.0-44.el7.x86_64.rpm qemu-kvm-rhev-2.12.0-44.el7.x86_64.rpm qemu-kvm-rhev-debuginfo-2.12.0-44.el7.x86_64.rpm qemu-kvm-tools-rhev-2.12.0-44.el7.x86_64.rpm
RHV-M 4.3:
Source: qemu-kvm-rhev-2.12.0-44.el7.src.rpm
x86_64: qemu-img-rhev-2.12.0-44.el7.x86_64.rpm qemu-kvm-common-rhev-2.12.0-44.el7.x86_64.rpm qemu-kvm-rhev-2.12.0-44.el7.x86_64.rpm qemu-kvm-rhev-debuginfo-2.12.0-44.el7.x86_64.rpm qemu-kvm-tools-rhev-2.12.0-44.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


Severity
important
Lowest
Low
Medium
High
Critical

Advisory ID: RHSA-2020:1216-01
Product: Red Hat Virtualization
Advisory URL: https://access.redhat.com/errata/RHSA-2020:1216
Issue date: 2020-03-31

Topic

An update for qemu-kvm-rhev is now available for Red Hat Virtualization 4for Red Hat Enterprise Linux 7 and Red Hat Virtualization Engine 4.3.Red Hat Product Security has rated this update as having a security impactof Important. A Common Vulnerability Scoring System (CVSS) base score,which gives a detailed severity rating, is available for each vulnerabilityfrom the CVE link(s) in the References section.

Topics%20covered

Topics Covered

security advisory Red Hat heap overflow null pointer qemu-kvm-rhev iscsi access

Relevant Releases Architectures

RHV-M 4.3 - x86_64

Red Hat Virtualization 4 Management Agent for RHEL 7 Hosts - ppc64le, x86_64

Bugs Fixed

1648622 - [v2v] Migration performance regression

1665256 - Live storage migration fails with: TimeoutError: Timed out during operation: cannot acquire state change lock (held by monitor=remoteDispatchConnectGetAllDomainStats) and the VM becomes 'Not Responding'

1711643 - qemu aborts in blockCommit: qemu-kvm: block.c:3486: bdrv_replace_node: Assertion `!({ _Static_assert(!(sizeof(*&from->in_flight) > 8), "not expecting: " "sizeof(*&from->in_flight) > ATOMIC_REG_SIZE"); __atomic_load_n(&from->in_flight, 0); })' failed.

1712670 - CVE-2019-12155 QEMU: qxl: null pointer dereference while releasing spice resources

1721522 - ccid: Fix incorrect dwProtocol advertisement of T=0

1724048 - Fail to migrate a rhel6.10-mt7.6 guest with dimm device

1734502 - qemu-kvm: backport cpuidle-haltpoll support

1734745 - CVE-2019-14378 QEMU: slirp: heap buffer overflow during packet reassembly

1743365 - qemu, qemu-img fail to detect alignment with XFS and Gluster/XFS on 4k block device

1746224 - qemu coredump: qemu-kvm: block/create.c:68: qmp_blockdev_create: Assertion `drv' failed

1764120 - [Data plane]virtio_scsi_ctx_check: Assertion `blk_get_aio_context(d->conf.blk) == s->ctx' failed when unplug a device that running block stream on it

1775251 - qemu-kvm crashes when Windows VM is migrated with multiqueue

1794290 - CVE-2020-1711 QEMU: block: iscsi: OOB heap access via an unexpected response of iSCSI Server

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