Protect yourself against future threats.
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1
===========================================================================
AUSCERT External Security Bulletin Redistribution
ESB-2015.1960
Important: qemu-kvm security and bug fix update
28 July 2015
===========================================================================
AusCERT Security Bulletin Summary
---------------------------------
Product: qemu-kvm
qemu-kvm-rhev
Publisher: Red Hat
Operating System: Red Hat Enterprise Linux Server 7
Red Hat Enterprise Linux WS/Desktop 7
Virtualisation
Impact/Access: Execute Arbitrary Code/Commands -- Existing Account
Resolution: Patch/Upgrade
CVE Names: CVE-2015-5154 CVE-2015-3214
Original Bulletin:
https://rhn.redhat.com/errata/RHSA-2015-1507.html
https://rhn.redhat.com/errata/RHSA-2015-1508.html
Comment: This bulletin contains two (2) Red Hat security advisories.
- --------------------------BEGIN INCLUDED TEXT--------------------
- -----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1
=====================================================================
Red Hat Security Advisory
Synopsis: Important: qemu-kvm security and bug fix update
Advisory ID: RHSA-2015:1507-01
Product: Red Hat Enterprise Linux
Advisory URL: https://rhn.redhat.com/errata/RHSA-2015-1507.html
Issue date: 2015-07-27
CVE Names: CVE-2015-3214 CVE-2015-5154
=====================================================================
1. Summary:
Updated qemu-kvm packages that fix two security issues and one bug are now
available for Red Hat Enterprise Linux 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 Client (v. 7) - x86_64
Red Hat Enterprise Linux Client Optional (v. 7) - x86_64
Red Hat Enterprise Linux ComputeNode Optional (v. 7) - x86_64
Red Hat Enterprise Linux Server (v. 7) - ppc64, x86_64
Red Hat Enterprise Linux Server Optional (v. 7) - ppc64, x86_64
Red Hat Enterprise Linux Workstation (v. 7) - x86_64
Red Hat Enterprise Linux Workstation Optional (v. 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 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.
This update also fixes the following bug:
* Due to an incorrect implementation of portable memory barriers, the QEMU
emulator in some cases terminated unexpectedly when a virtual disk was
under heavy I/O load. This update fixes the implementation in order to
achieve correct synchronization between QEMU's threads. As a result, the
described crash no longer occurs. (BZ#1233643)
All qemu-kvm 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.
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 Client (v. 7):
Source:
qemu-kvm-1.5.3-86.el7_1.5.src.rpm
x86_64:
libcacard-1.5.3-86.el7_1.5.i686.rpm
libcacard-1.5.3-86.el7_1.5.x86_64.rpm
qemu-img-1.5.3-86.el7_1.5.x86_64.rpm
qemu-kvm-1.5.3-86.el7_1.5.x86_64.rpm
qemu-kvm-common-1.5.3-86.el7_1.5.x86_64.rpm
qemu-kvm-debuginfo-1.5.3-86.el7_1.5.i686.rpm
qemu-kvm-debuginfo-1.5.3-86.el7_1.5.x86_64.rpm
qemu-kvm-tools-1.5.3-86.el7_1.5.x86_64.rpm
Red Hat Enterprise Linux Client Optional (v. 7):
x86_64:
libcacard-devel-1.5.3-86.el7_1.5.i686.rpm
libcacard-devel-1.5.3-86.el7_1.5.x86_64.rpm
libcacard-tools-1.5.3-86.el7_1.5.x86_64.rpm
qemu-kvm-debuginfo-1.5.3-86.el7_1.5.i686.rpm
qemu-kvm-debuginfo-1.5.3-86.el7_1.5.x86_64.rpm
Red Hat Enterprise Linux ComputeNode Optional (v. 7):
Source:
qemu-kvm-1.5.3-86.el7_1.5.src.rpm
x86_64:
libcacard-1.5.3-86.el7_1.5.i686.rpm
libcacard-1.5.3-86.el7_1.5.x86_64.rpm
libcacard-devel-1.5.3-86.el7_1.5.i686.rpm
libcacard-devel-1.5.3-86.el7_1.5.x86_64.rpm
libcacard-tools-1.5.3-86.el7_1.5.x86_64.rpm
qemu-img-1.5.3-86.el7_1.5.x86_64.rpm
qemu-kvm-1.5.3-86.el7_1.5.x86_64.rpm
qemu-kvm-common-1.5.3-86.el7_1.5.x86_64.rpm
qemu-kvm-debuginfo-1.5.3-86.el7_1.5.i686.rpm
qemu-kvm-debuginfo-1.5.3-86.el7_1.5.x86_64.rpm
qemu-kvm-tools-1.5.3-86.el7_1.5.x86_64.rpm
Red Hat Enterprise Linux Server (v. 7):
Source:
qemu-kvm-1.5.3-86.el7_1.5.src.rpm
ppc64:
qemu-img-1.5.3-86.el7_1.5.ppc64.rpm
qemu-kvm-debuginfo-1.5.3-86.el7_1.5.ppc64.rpm
x86_64:
libcacard-1.5.3-86.el7_1.5.i686.rpm
libcacard-1.5.3-86.el7_1.5.x86_64.rpm
qemu-img-1.5.3-86.el7_1.5.x86_64.rpm
qemu-kvm-1.5.3-86.el7_1.5.x86_64.rpm
qemu-kvm-common-1.5.3-86.el7_1.5.x86_64.rpm
qemu-kvm-debuginfo-1.5.3-86.el7_1.5.i686.rpm
qemu-kvm-debuginfo-1.5.3-86.el7_1.5.x86_64.rpm
qemu-kvm-tools-1.5.3-86.el7_1.5.x86_64.rpm
Red Hat Enterprise Linux Server Optional (v. 7):
ppc64:
libcacard-1.5.3-86.el7_1.5.ppc.rpm
libcacard-1.5.3-86.el7_1.5.ppc64.rpm
libcacard-devel-1.5.3-86.el7_1.5.ppc.rpm
libcacard-devel-1.5.3-86.el7_1.5.ppc64.rpm
libcacard-tools-1.5.3-86.el7_1.5.ppc64.rpm
qemu-kvm-debuginfo-1.5.3-86.el7_1.5.ppc.rpm
qemu-kvm-debuginfo-1.5.3-86.el7_1.5.ppc64.rpm
x86_64:
libcacard-devel-1.5.3-86.el7_1.5.i686.rpm
libcacard-devel-1.5.3-86.el7_1.5.x86_64.rpm
libcacard-tools-1.5.3-86.el7_1.5.x86_64.rpm
qemu-kvm-debuginfo-1.5.3-86.el7_1.5.i686.rpm
qemu-kvm-debuginfo-1.5.3-86.el7_1.5.x86_64.rpm
Red Hat Enterprise Linux Workstation (v. 7):
Source:
qemu-kvm-1.5.3-86.el7_1.5.src.rpm
x86_64:
libcacard-1.5.3-86.el7_1.5.i686.rpm
libcacard-1.5.3-86.el7_1.5.x86_64.rpm
qemu-img-1.5.3-86.el7_1.5.x86_64.rpm
qemu-kvm-1.5.3-86.el7_1.5.x86_64.rpm
qemu-kvm-common-1.5.3-86.el7_1.5.x86_64.rpm
qemu-kvm-debuginfo-1.5.3-86.el7_1.5.i686.rpm
qemu-kvm-debuginfo-1.5.3-86.el7_1.5.x86_64.rpm
qemu-kvm-tools-1.5.3-86.el7_1.5.x86_64.rpm
Red Hat Enterprise Linux Workstation Optional (v. 7):
x86_64:
libcacard-devel-1.5.3-86.el7_1.5.i686.rpm
libcacard-devel-1.5.3-86.el7_1.5.x86_64.rpm
libcacard-tools-1.5.3-86.el7_1.5.x86_64.rpm
qemu-kvm-debuginfo-1.5.3-86.el7_1.5.i686.rpm
qemu-kvm-debuginfo-1.5.3-86.el7_1.5.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 <secalert@redhat.com>. More contact
details at https://access.redhat.com/security/team/contact/
Copyright 2015 Red Hat, Inc.
- -----BEGIN PGP SIGNATURE-----
Version: GnuPG v1
iD8DBQFVtjQAXlSAg2UNWIIRAubOAJ9jPmZf7ZF+FHd+a7JxYxxRPAGx0wCgv5dX
hlTFJ96W8Yn4W+ZR2yhsbBU=
=i68a
- -----END PGP SIGNATURE-----
- -----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1
=====================================================================
Red Hat Security Advisory
Synopsis: Important: qemu-kvm-rhev security update
Advisory ID: RHSA-2015:1508-01
Product: Red Hat Enterprise Virtualization
Advisory URL: https://rhn.redhat.com/errata/RHSA-2015-1508.html
Issue date: 2015-07-27
CVE Names: CVE-2015-3214 CVE-2015-5154
=====================================================================
1. Summary:
Updated qemu-kvm-rhev packages that fix two security issues are now
available for Red Hat Enterprise Virtualization Hypervisor 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:
RHEV-H and VDSM for 7 Hosts - 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:
RHEV-H and VDSM for 7 Hosts:
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 <secalert@redhat.com>. More contact
details at https://access.redhat.com/security/team/contact/
Copyright 2015 Red Hat, Inc.
- -----BEGIN PGP SIGNATURE-----
Version: GnuPG v1
iD8DBQFVtjRUXlSAg2UNWIIRArvIAKCCOnHT+kPU47ecjDOYpaS0OlmdPgCgtFTv
ouAIFEo562CLmJA2nBzFKeE=
=JVdM
- -----END PGP SIGNATURE-----
- --------------------------END INCLUDED TEXT--------------------
You have received this e-mail bulletin as a result of your organisation's
registration with AusCERT. The mailing list you are subscribed to is
maintained within your organisation, so if you do not wish to continue
receiving these bulletins you should contact your local IT manager. If
you do not know who that is, please send an email to auscert@auscert.org.au
and we will forward your request to the appropriate person.
NOTE: Third Party Rights
This security bulletin is provided as a service to AusCERT's members. As
AusCERT did not write the document quoted above, AusCERT has had no control
over its content. The decision to follow or act on information or advice
contained in this security bulletin is the responsibility of each user or
organisation, and should be considered in accordance with your organisation's
site policies and procedures. AusCERT takes no responsibility for consequences
which may arise from following or acting on information or advice contained in
this security bulletin.
NOTE: This is only the original release of the security bulletin. It may
not be updated when updates to the original are made. If downloading at
a later date, it is recommended that the bulletin is retrieved directly
from the author's website to ensure that the information is still current.
Contact information for the authors of the original document is included
in the Security Bulletin above. If you have any questions or need further
information, please contact them directly.
Previous advisories and external security bulletins can be retrieved from:
http://www.auscert.org.au/render.html?cid=1980
===========================================================================
Australian Computer Emergency Response Team
The University of Queensland
Brisbane
Qld 4072
Internet Email: auscert@auscert.org.au
Facsimile: (07) 3365 7031
Telephone: (07) 3365 4417 (International: +61 7 3365 4417)
AusCERT personnel answer during Queensland business hours
which are GMT+10:00 (AEST).
On call after hours for member emergencies only.
===========================================================================
-----BEGIN PGP SIGNATURE-----
Comment: http://www.auscert.org.au/render.html?it=1967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=kcoh
-----END PGP SIGNATURE-----