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Red Hat Product Errata RHSA-2016:2670 - Security Advisory
Issued:
2016-11-07
Updated:
2016-11-07

RHSA-2016:2670 - Security Advisory

  • Overview
  • Updated Packages

Synopsis

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

Type/Severity

Security Advisory: Moderate

Red Hat Insights patch analysis

Identify and remediate systems affected by this advisory.

View affected systems

Topic

An update for qemu-kvm-rhev is now available for Red Hat OpenStack Platform 8.0 (Liberty).

Red Hat Product Security has rated this update as having a security impact of Moderate. 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 AMD64 and Intel 64 systems. The qemu-kvm-rhev package provides the user-space component for running virtual machines using KVM in environments managed by Red Hat Enterprise Virtualization Manager.

The following packages have been upgraded to a newer upstream version: qemu-kvm-rhev (2.6.0). (BZ#1386383)

Security Fix(es):

  • An out-of-bounds flaw was found in the QEMU emulator built using 'address_space_translate' to map an address to a MemoryRegionSection. The flaw could occur while doing pci_dma_read/write calls, resulting in an out-of-bounds read-write access error. A privileged user inside a guest could use this flaw to crash the guest instance (denial of service). (CVE-2015-8817, CVE-2015-8818)

Red Hat would like to thank Donghai Zdh of Alibaba Inc. for reporting this issue.

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

  • Red Hat OpenStack 8 x86_64

Fixes

  • BZ - 1300771 - CVE-2015-8817 CVE-2015-8818 Qemu: OOB access in address_space_rw leads to segmentation fault
  • BZ - 1374366 - RHSA-2016-1756 breaks migration of instances [OSP8]
  • BZ - 1386383 - Rebase qemu-kvm-rhev to 2.6.0

CVEs

  • CVE-2015-8817
  • CVE-2015-8818
  • CVE-2016-2857

References

  • https://access.redhat.com/security/updates/classification/#moderate
Note: More recent versions of these packages may be available. Click a package name for more details.

Red Hat OpenStack 8

SRPM
qemu-kvm-rhev-2.6.0-27.el7.src.rpm SHA-256: 20aad33d141692928891c56232f3baffe1d66537bbe1826403b10db59a6975ac
x86_64
qemu-img-rhev-2.6.0-27.el7.x86_64.rpm SHA-256: 4d9f9fb6de67fb7c7cc4ed9d170a435322afe6db52ff18422b627c1ddefbafa8
qemu-kvm-common-rhev-2.6.0-27.el7.x86_64.rpm SHA-256: c58f599922c46931e8f3af3c2e7736c1af3f5f983ce2b428db7fc19892ea9506
qemu-kvm-rhev-2.6.0-27.el7.x86_64.rpm SHA-256: b4f5a77f325bf93a73980a00af141571c7ff6b4b37fd35dc3ccd1f776191c132
qemu-kvm-rhev-debuginfo-2.6.0-27.el7.x86_64.rpm SHA-256: 4c6f8edd188dda53e1c69cdffae86b92ea8abb9268002c54436a164f5aaa9d9f
qemu-kvm-tools-rhev-2.6.0-27.el7.x86_64.rpm SHA-256: d8677214a68f0d4cffc40342e0eb34c5b4adb991a97413749bbc4592b2dcc346

The Red Hat security contact is secalert@redhat.com. More contact details at https://access.redhat.com/security/team/contact/.

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