Issued:
2020-03-31
Updated:
2020-03-31

RHSA-2020:1216 - Important: qemu-kvm-rhev security, bug fix, and enhancement update

Synopsis

Important: qemu-kvm-rhev security, bug fix, and enhancement update

Type/Severity

Security Advisory Important

Topic

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.

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: 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)

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.

Affected Products

ProductVersionArch
Red Hat Virtualization4x86_64
Red Hat Virtualization for IBM Power LE4ppc64le
Red Hat Virtualization Manager4.3x86_64

Updated Packages

  • qemu-kvm-tools-rhev-2.12.0-44.el7.ppc64le.rpm
  • qemu-kvm-rhev-2.12.0-44.el7.ppc64le.rpm
  • qemu-kvm-rhev-2.12.0-44.el7.src.rpm
  • qemu-kvm-common-rhev-2.12.0-44.el7.x86_64.rpm
  • qemu-img-rhev-2.12.0-44.el7.x86_64.rpm
  • qemu-img-rhev-2.12.0-44.el7.ppc64le.rpm
  • qemu-kvm-rhev-debuginfo-2.12.0-44.el7.x86_64.rpm
  • qemu-kvm-common-rhev-2.12.0-44.el7.ppc64le.rpm
  • qemu-kvm-tools-rhev-2.12.0-44.el7.x86_64.rpm
  • qemu-kvm-rhev-debuginfo-2.12.0-44.el7.ppc64le.rpm
  • qemu-kvm-rhev-2.12.0-44.el7.x86_64.rpm

Fixes

CVEs

References

Additional information