[RHSA-2015:1512-01] Important: qemu-kvm-rhev security update

[news 28]

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Red Hat Security Advisory

 

Synopsis: Important: qemu-kvm-rhev security update

Advisory ID: RHSA-2015:1512-01

Product: Red Hat Enterprise Linux OpenStack Platform

Advisory URL: https://rhn.redhat.com/errata/RHSA-2015-1512.html

Issue date: 2015-07-28

CVE Names: CVE-2015-3214 CVE-2015-5154

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1. Summary:

 

Updated qemu-kvm-rhev packages that fix two security issues are now

available for Red Hat Enterprise Linux OpenStack Platform 6 and Red Hat

Enterprise Linux OpenStack Platform 5 for RHEL 7.

 

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.

 

2. Relevant releases/architectures:

 

Red Hat Enterprise Linux OpenStack Platform 5.0 for RHEL 7 - x86_64

Red Hat Enterprise Linux OpenStack Platform 6.0 for RHEL 7 - x86_64

 

3. 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.

 

A heap buffer overflow flaw was found in the way QEMU's IDE subsystem

handled I/O buffer access while processing certain ATAPI commands.

A privileged guest user in a guest with the CDROM drive enabled could

potentially use this flaw to execute arbitrary code on the host with the

privileges of the host's QEMU process corresponding to the guest.

(CVE-2015-5154)

 

An out-of-bounds memory access flaw, leading to memory corruption or

possibly an information leak, was found in QEMU's pit_ioport_read()

function. A privileged guest user in a QEMU guest, which had QEMU PIT

emulation enabled, could potentially, in rare cases, use this flaw to

execute arbitrary code on the host with the privileges of the hosting QEMU

process. (CVE-2015-3214)

 

Red Hat would like to thank Matt Tait of Google's Project Zero security

team for reporting the CVE-2015-3214 issue. The CVE-2015-5154 issue was

discovered by Kevin Wolf of Red Hat.

 

All qemu-kvm-rhev users are advised to upgrade to these updated packages,

which contain a backported patch to correct this issue. 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.

 

4. Solution:

 

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

 

5. Bugs fixed (https://bugzilla.redhat.com/):

 

1229640 - CVE-2015-3214 qemu/kvm: i8254: out-of-bounds memory access in pit_ioport_read function

1243563 - CVE-2015-5154 qemu: ide: atapi: heap overflow during I/O buffer memory access

 

6. Package List:

 

Red Hat Enterprise Linux OpenStack Platform 5.0 for RHEL 7:

 

Source:

qemu-kvm-rhev-2.1.2-23.el7_1.6.src.rpm

 

x86_64:

libcacard-devel-rhev-2.1.2-23.el7_1.6.x86_64.rpm

libcacard-rhev-2.1.2-23.el7_1.6.x86_64.rpm

libcacard-tools-rhev-2.1.2-23.el7_1.6.x86_64.rpm

qemu-img-rhev-2.1.2-23.el7_1.6.x86_64.rpm

qemu-kvm-common-rhev-2.1.2-23.el7_1.6.x86_64.rpm

qemu-kvm-rhev-2.1.2-23.el7_1.6.x86_64.rpm

qemu-kvm-rhev-debuginfo-2.1.2-23.el7_1.6.x86_64.rpm

qemu-kvm-tools-rhev-2.1.2-23.el7_1.6.x86_64.rpm

 

Red Hat Enterprise Linux OpenStack Platform 6.0 for RHEL 7:

 

Source:

qemu-kvm-rhev-2.1.2-23.el7_1.6.src.rpm

 

x86_64:

libcacard-devel-rhev-2.1.2-23.el7_1.6.x86_64.rpm

libcacard-rhev-2.1.2-23.el7_1.6.x86_64.rpm

libcacard-tools-rhev-2.1.2-23.el7_1.6.x86_64.rpm

qemu-img-rhev-2.1.2-23.el7_1.6.x86_64.rpm

qemu-kvm-common-rhev-2.1.2-23.el7_1.6.x86_64.rpm

qemu-kvm-rhev-2.1.2-23.el7_1.6.x86_64.rpm

qemu-kvm-rhev-debuginfo-2.1.2-23.el7_1.6.x86_64.rpm

qemu-kvm-tools-rhev-2.1.2-23.el7_1.6.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/

 

7. References:

 

https://access.redhat.com/security/cve/CVE-2015-3214

https://access.redhat.com/security/cve/CVE-2015-5154

https://access.redhat.com/security/updates/classification/#important

 

8. Contact:

 

The Red Hat security contact is . More contact

details at https://access.redhat.com/security/team/contact/

 

Copyright 2015 Red Hat, Inc.

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