Issued:
2019-07-29
Updated:
2019-07-29

RHSA-2019:1881 - Important: qemu-kvm-ma security and bug fix update

Synopsis

Important: qemu-kvm-ma security and bug fix update

Type/Severity

Security Advisory Important

Topic

An update for qemu-kvm-ma is now available for Red Hat Enterprise Linux 7.

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

Kernel-based Virtual Machine (KVM) is a full virtualization solution for Linux on a variety of architectures. The qemu-kvm-ma packages provide the user-space component for running virtual machines that use KVM on the IBM z Systems, IBM Power, and 64-bit ARM architectures.

Security Fix(es):

  • QEMU: device_tree: heap buffer overflow while loading device tree blob (CVE-2018-20815)

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):

  • As newer machine remove csske feature, detection of the processor fail and machine used old version as fallback. This update make feature conditional so detection of newer cpu works properly. (BZ#1720262)

Solution

For details on how to apply this update, which includes the changes described in this advisory, refer to:

https://access.redhat.com/articles/11258

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 Enterprise Linux for Power, little endian7ppc64le
Red Hat Enterprise Linux for Power, little endian - Extended Update Support7.6ppc64le
Red Hat Enterprise Linux for Power, big endian7ppc64
Red Hat Enterprise Linux for Power, big endian - Extended Update Support7.6ppc64
Red Hat Enterprise Linux for Power 97ppc64le
Red Hat Enterprise Linux for IBM z Systems7s390x
Red Hat Enterprise Linux for IBM z Systems - Extended Update Support7.6s390x
Red Hat Enterprise Linux for IBM System z (Structure A)7s390x
Red Hat Enterprise Linux for ARM 647aarch64
Red Hat Enterprise Linux Server for Power LE - Update Services for SAP Solutions7.6ppc64le
Red Hat Enterprise Linux Server - Extended Life Cycle Support for IBM Power, little endian7ppc64le
Red Hat Enterprise Linux Server - Extended Life Cycle Support for IBM Power, big endian7ppc64
Red Hat Enterprise Linux Server - Extended Life Cycle Support (for IBM z Systems)7s390x

Updated Packages

  • qemu-kvm-ma-2.12.0-18.el7_6.4.s390x.rpm
  • qemu-kvm-ma-debuginfo-2.12.0-18.el7_6.4.ppc64.rpm
  • qemu-img-ma-2.12.0-18.el7_6.4.ppc64le.rpm
  • qemu-kvm-ma-2.12.0-18.el7_6.4.ppc64le.rpm
  • qemu-kvm-tools-ma-2.12.0-18.el7_6.4.ppc64.rpm
  • qemu-kvm-common-ma-2.12.0-18.el7_6.4.aarch64.rpm
  • qemu-kvm-ma-debuginfo-2.12.0-18.el7_6.4.s390x.rpm
  • qemu-kvm-ma-2.12.0-18.el7_6.4.ppc64.rpm
  • qemu-kvm-ma-2.12.0-18.el7_6.4.aarch64.rpm
  • qemu-kvm-ma-2.12.0-18.el7_6.4.src.rpm
  • qemu-kvm-tools-ma-2.12.0-18.el7_6.4.s390x.rpm
  • qemu-kvm-ma-debuginfo-2.12.0-18.el7_6.4.ppc64le.rpm
  • qemu-kvm-ma-debuginfo-2.12.0-18.el7_6.4.aarch64.rpm
  • qemu-kvm-tools-ma-2.12.0-18.el7_6.4.aarch64.rpm
  • qemu-kvm-tools-ma-2.12.0-18.el7_6.4.ppc64le.rpm
  • qemu-img-ma-2.12.0-18.el7_6.4.aarch64.rpm
  • qemu-kvm-common-ma-2.12.0-18.el7_6.4.s390x.rpm
  • qemu-kvm-common-ma-2.12.0-18.el7_6.4.ppc64.rpm
  • qemu-kvm-common-ma-2.12.0-18.el7_6.4.ppc64le.rpm
  • qemu-img-ma-2.12.0-18.el7_6.4.ppc64.rpm
  • qemu-img-ma-2.12.0-18.el7_6.4.s390x.rpm

Fixes

CVEs

References

Additional information