[RHSA-2017:0621-01] Moderate: qemu-kvm security and bug fix update

[news 28]

-----BEGIN PGP SIGNED MESSAGE-----

Hash: SHA1

 

=====================================================================

Red Hat Security Advisory

 

Synopsis: Moderate: qemu-kvm security and bug fix update

Advisory ID: RHSA-2017:0621-01

Product: Red Hat Enterprise Linux

Advisory URL: https://rhn.redhat.com/errata/RHSA-2017-0621.html

Issue date: 2017-03-21

CVE Names: CVE-2016-3712

=====================================================================

 

1. Summary:

 

An update for qemu-kvm is now available for Red Hat Enterprise Linux 6.

 

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.

 

2. Relevant releases/architectures:

 

Red Hat Enterprise Linux Desktop (v. 6) - i386, x86_64

Red Hat Enterprise Linux HPC Node (v. 6) - x86_64

Red Hat Enterprise Linux Server (v. 6) - i386, ppc64, x86_64

Red Hat Enterprise Linux Workstation (v. 6) - i386, x86_64

 

3. Description:

 

Kernel-based Virtual Machine (KVM) is a full virtualization solution for

Linux on a variety of architectures. The qemu-kvm packages provide the

user-space component for running virtual machines that use KVM.

 

Security Fix(es):

 

* An integer overflow flaw and an out-of-bounds read flaw were found in the

way QEMU's VGA emulator set certain VGA registers while in VBE mode. A

privileged guest user could use this flaw to crash the QEMU process

instance. (CVE-2016-3712)

 

Red Hat would like to thank Zuozhi Fzz (Alibaba Inc.) for reporting this

issue.

 

Additional Changes:

 

For detailed information on changes in this release, see the Red Hat

Enterprise Linux 6.9 Release Notes and Red Hat Enterprise Linux 6.9

Technical Notes linked from the References section.

 

4. 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.

 

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

 

876993 - qemu-kvm: vm's become non-responsive during migrate disk load from 2 domains to a 3ed

1281713 - system_reset should clear pending request for error (IDE)

1292678 - Qemu should report error when cmdline set threads=2 in amd host

1294941 - QEMU crash on snapshot revert when using Cirrus

1297653 - "qemu-img convert" can't create a fully allocated image passed a "-S 0" option

1300626 - e1000/rtl8139: qemu mac address can not be changed via set the hardware address in guest

1318712 - CVE-2016-3712 qemu-kvm: Out-of-bounds read when creating weird vga screen surface

1320066 - Qemu should not report error when cmdline set threads=2 in Intel host

1333697 - qemu-kvm: /builddir/build/BUILD/qemu-kvm-0.12.1.2/hw/virtio-scsi.c:724: virtio_scsi_push_event: Assertion `event == 0' failed

1346981 - Regression from CVE-2016-3712: windows installer fails to start [rhel-6.9]

1356924 - rtl8139 driver hangs in widows guests

1361490 - system_reset should clear pending request for error (virtio-blk)

1392287 - Core dump occurs when query qtree after migration with "-vga cirrus"

1392520 - [RHEL6.9] KVM guest shuts itself down after 128th reboot

 

6. Package List:

 

Red Hat Enterprise Linux Desktop (v. 6):

 

Source:

qemu-kvm-0.12.1.2-2.503.el6.src.rpm

 

i386:

qemu-guest-agent-0.12.1.2-2.503.el6.i686.rpm

qemu-kvm-debuginfo-0.12.1.2-2.503.el6.i686.rpm

 

x86_64:

qemu-guest-agent-0.12.1.2-2.503.el6.x86_64.rpm

qemu-img-0.12.1.2-2.503.el6.x86_64.rpm

qemu-kvm-0.12.1.2-2.503.el6.x86_64.rpm

qemu-kvm-debuginfo-0.12.1.2-2.503.el6.x86_64.rpm

qemu-kvm-tools-0.12.1.2-2.503.el6.x86_64.rpm

 

Red Hat Enterprise Linux HPC Node (v. 6):

 

Source:

qemu-kvm-0.12.1.2-2.503.el6.src.rpm

 

x86_64:

qemu-guest-agent-0.12.1.2-2.503.el6.x86_64.rpm

qemu-img-0.12.1.2-2.503.el6.x86_64.rpm

qemu-kvm-0.12.1.2-2.503.el6.x86_64.rpm

qemu-kvm-debuginfo-0.12.1.2-2.503.el6.x86_64.rpm

qemu-kvm-tools-0.12.1.2-2.503.el6.x86_64.rpm

 

Red Hat Enterprise Linux Server (v. 6):

 

Source:

qemu-kvm-0.12.1.2-2.503.el6.src.rpm

 

i386:

qemu-guest-agent-0.12.1.2-2.503.el6.i686.rpm

qemu-kvm-debuginfo-0.12.1.2-2.503.el6.i686.rpm

 

ppc64:

qemu-guest-agent-0.12.1.2-2.503.el6.ppc64.rpm

qemu-kvm-debuginfo-0.12.1.2-2.503.el6.ppc64.rpm

 

x86_64:

qemu-guest-agent-0.12.1.2-2.503.el6.x86_64.rpm

qemu-img-0.12.1.2-2.503.el6.x86_64.rpm

qemu-kvm-0.12.1.2-2.503.el6.x86_64.rpm

qemu-kvm-debuginfo-0.12.1.2-2.503.el6.x86_64.rpm

qemu-kvm-tools-0.12.1.2-2.503.el6.x86_64.rpm

 

Red Hat Enterprise Linux Workstation (v. 6):

 

Source:

qemu-kvm-0.12.1.2-2.503.el6.src.rpm

 

i386:

qemu-guest-agent-0.12.1.2-2.503.el6.i686.rpm

qemu-kvm-debuginfo-0.12.1.2-2.503.el6.i686.rpm

 

x86_64:

qemu-guest-agent-0.12.1.2-2.503.el6.x86_64.rpm

qemu-img-0.12.1.2-2.503.el6.x86_64.rpm

qemu-kvm-0.12.1.2-2.503.el6.x86_64.rpm

qemu-kvm-debuginfo-0.12.1.2-2.503.el6.x86_64.rpm

qemu-kvm-tools-0.12.1.2-2.503.el6.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-2016-3712

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

 

8. Contact:

 

The Red Hat security contact is . More contact

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

 

Copyright 2017 Red Hat, Inc.

-----BEGIN PGP SIGNATURE-----

Version: GnuPG v1

 

iD8DBQFY0PPGXlSAg2UNWIIRAgw5AKCAMF/URlZmNOgr8yCFfeEKLqpxSgCbBIKS

sC7bBv8SYbZXjKAmWa10ewM=

=jAzj

-----END PGP SIGNATURE-----

 

 

--