Red Hat 製品エラータ RHSA-2016:0087 - Security Advisory
発行日:
2016-01-28
更新日:
2016-01-28

RHSA-2016:0087 - Security Advisory

概要

Important: qemu-kvm-rhev security update

タイプ/重大度

Security Advisory: Important

Red Hat Lightspeed patch analysis

このアドバイザリーの影響を受けるシステムを特定し、修正します。

影響を受けるシステムの表示

トピック

Updated qemu-kvm-rhev packages that fix two security issues are now
available for Red Hat Enterprise Linux OpenStack Platform 6.

Red Hat Product Security has rated this update as having Important security
impact. Common Vulnerability Scoring System (CVSS) base scores, which give
detailed severity ratings, are available for each vulnerability from the
CVE links in the References section.

説明

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.

A use-after-free flaw was found in the way QEMU's IDE AHCI emulator
processed certain AHCI Native Command Queuing (NCQ) AIO commands.
A privileged guest user could use this flaw to crash the QEMU process
instance or, potentially, execute arbitrary code on the host with
privileges of the QEMU process. (CVE-2016-1568)

An out-of-bounds read/write flaw was discovered in the way QEMU's Firmware
Configuration device emulation processed certain firmware configurations.
A privileged (CAP_SYS_RAWIO) guest user could use this flaw to crash the
QEMU process instance or, potentially, execute arbitrary code on the host
with privileges of the QEMU process. (CVE-2016-1714)

Red Hat would like to thank Qinghao Tang of Qihoo 360 Marvel Team for
reporting the CVE-2016-1568 issue, and Donghai Zhu of Alibaba for reporting
the CVE-2016-1714 issue.

All qemu-kvm-rhev users are advised to upgrade to these updated packages,
which contain backported patches to correct these issues. 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.

解決策

Before applying this update, make sure all previously released errata
relevant to your system have been applied.

For details on how to apply this update, refer to:

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

影響を受ける製品

  • Red Hat OpenStack 6.0 x86_64

修正

  • BZ - 1288532 - CVE-2016-1568 Qemu: ide: ahci use-after-free vulnerability in aio port commands
  • BZ - 1296060 - CVE-2016-1714 Qemu: nvram: OOB r/w access in processing firmware configurations

Red Hat OpenStack 6.0

SRPM
qemu-kvm-rhev-2.3.0-31.el7_2.7.src.rpm SHA-256: 7dbf3349a816145d42175f821bd71471fe08c94ba4e70df8b84e86d880ed60fb
x86_64
libcacard-devel-rhev-2.3.0-31.el7_2.7.x86_64.rpm SHA-256: e82d98108b8db9f2fb7f4540b900e35caa709118dbd443cbe04a0078bfa164ee
libcacard-rhev-2.3.0-31.el7_2.7.x86_64.rpm SHA-256: 56db0ca491ae7e6f0ccc7d42b798044548bc4ed1e815020d15df4f0f640f10d3
libcacard-tools-rhev-2.3.0-31.el7_2.7.x86_64.rpm SHA-256: 311dcf5767ce0242a0505bc706c2125ae99a5302a47b6a40629cc15529e2b6c7
qemu-img-rhev-2.3.0-31.el7_2.7.x86_64.rpm SHA-256: f9fcea0ec3920b8cc96e32b9afdc237be0025e5eb7559e648f9823f32ff07b64
qemu-kvm-common-rhev-2.3.0-31.el7_2.7.x86_64.rpm SHA-256: 758e9076b99c8d54459a8d0bc18a0db527e019f95654b8f3298dab681a32148b
qemu-kvm-rhev-2.3.0-31.el7_2.7.x86_64.rpm SHA-256: d8498872351bb5d2133fba428c0459c0fe8f24568498cc06c993b79316c2722f
qemu-kvm-rhev-debuginfo-2.3.0-31.el7_2.7.x86_64.rpm SHA-256: adf2fabe48aee339cc1a1a553a5c4c9a16dcb01207bf543c17d79f74700f44b3
qemu-kvm-tools-rhev-2.3.0-31.el7_2.7.x86_64.rpm SHA-256: 004e8d119361e952aea70264d535cf44394093691da32439e6fa1107e2e8b374

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