Moderate CentOS qemu-kvm Update

Metadata

medium
4.9
qemu-guest-agent-0.12.1.2-2.415.el6_5.8.i686.rpm, qemu-guest-agent-0.12.1.2-2.415.el6_5.8.x86_64.rpm, qemu-img-0.12.1.2-2.415.el6_5.8.x86_64.rpm, qemu-kvm-0.12.1.2-2.415.el6_5.8.src.rpm, qemu-kvm-0.12.1.2-2.415.el6_5.8.x86_64.rpm, qemu-kvm-tools-0.12.1.2-2.415.el6_5.8.x86_64.rpm
CVE-2014-0142, CVE-2014-0143, CVE-2014-0144, CVE-2014-0145, CVE-2014-0146, CVE-2014-0147, CVE-2014-0148, CVE-2014-0150
rhn.redhat.com, lists.centos.org
2014-04-22
2017-07-27 19:06
CVE-2014-0148 xen
CVE-2014-0142 qemu
CVE-2014-0150 qemu
CVE-2014-0148 qemu
CVE-2014-0145 qemu
CVE-2014-0144 qemu
CVE-2014-0143 qemu-kvm
CVE-2014-0147 qemu
CVE-2014-0146 xen
CVE-2014-0148 qemu-kvm
CVE-2014-0143 qemu
CVE-2014-0146 qemu
CVE-2014-0142 qemu-kvm
CVE-2014-0146 qemu-kvm
CVE-2014-0144 qemu-kvm
CVE-2014-0147 qemu-kvm
CVE-2014-0145 qemu-kvm
CVE-2014-0150 qemu-kvm
CVE-2014-0148
CVE-2014-0145
CVE-2014-0143
CVE-2014-0150
CVE-2014-0142
CVE-2014-0146
CVE-2014-0147
CVE-2014-0144
2017-04-01 19:08
2017-01-05 20:11

Description


Updated qemu-kvm packages that fix multiple security issues are now
available for Red Hat Enterprise Linux 6.

The Red Hat Security Response Team has rated this update as having Moderate
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.

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.

Multiple integer overflow, input validation, logic error, and buffer
overflow flaws were discovered in various QEMU block drivers. An attacker
able to modify a disk image file loaded by a guest could use these flaws to
crash the guest, or corrupt QEMU process memory on the host, potentially
resulting in arbitrary code execution on the host with the privileges of
the QEMU process. (CVE-2014-0143, CVE-2014-0144, CVE-2014-0145,
CVE-2014-0147)

A buffer overflow flaw was found in the way the virtio_net_handle_mac()
function of QEMU processed guest requests to update the table of MAC
addresses. A privileged guest user could use this flaw to corrupt QEMU
process memory on the host, potentially resulting in arbitrary code
execution on the host with the privileges of the QEMU process.
(CVE-2014-0150)

A divide-by-zero flaw was found in the seek_to_sector() function of the
parallels block driver in QEMU. An attacker able to modify a disk image
file loaded by a guest could use this flaw to crash the guest.
(CVE-2014-0142)

A NULL pointer dereference flaw was found in the QCOW2 block driver in
QEMU. An attacker able to modify a disk image file loaded by a guest could
use this flaw to crash the guest. (CVE-2014-0146)

It was found that the block driver for Hyper-V VHDX images did not
correctly calculate BAT (Block Allocation Table) entries due to a missing
bounds check. An attacker able to modify a disk image file loaded by a
guest could use this flaw to crash the guest. (CVE-2014-0148)

The CVE-2014-0143 issues were discovered by Kevin Wolf and Stefan Hajnoczi
of Red Hat, the CVE-2014-0144 issues were discovered by Fam Zheng, Jeff
Cody, Kevin Wolf, and Stefan Hajnoczi of Red Hat, the CVE-2014-0145 issues
were discovered by Stefan Hajnoczi of Red Hat, the CVE-2014-0150 issue was
discovered by Michael S. Tsirkin of Red Hat, the CVE-2014-0142,
CVE-2014-0146, and CVE-2014-0147 issues were discovered by Kevin Wolf of
Red Hat, and the CVE-2014-0148 issue was discovered by Jeff Cody of
Red Hat.

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.
Please see https://www.redhat.com/footer/terms-of-use.html

Am I vulnerable?

The constraints below list the versions that this vulnerability is patched in, and versions that are unaffected. If a patch is ready but unrealeased, then it is pending.

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Affected package information

Release Package Patched in
6 qemu-guest-agent qemu-guest-agent-0.12.1.2-2.415.el6_5.8.i686.rpm
qemu-guest-agent qemu-guest-agent-0.12.1.2-2.415.el6_5.8.x86_64.rpm
qemu-img qemu-img-0.12.1.2-2.415.el6_5.8.x86_64.rpm
qemu-kvm qemu-kvm-0.12.1.2-2.415.el6_5.8.src.rpm
qemu-kvm qemu-kvm-0.12.1.2-2.415.el6_5.8.x86_64.rpm
qemu-kvm-tools qemu-kvm-tools-0.12.1.2-2.415.el6_5.8.x86_64.rpm