Moderate CentOS qemu-kvm Security Update

Metadata

medium
4.9
qemu-guest-agent-0.12.1.2-2.491.el6_8.3.i686.rpm, qemu-guest-agent-0.12.1.2-2.491.el6_8.3.x86_64.rpm, qemu-img-0.12.1.2-2.491.el6_8.3.x86_64.rpm, qemu-kvm-0.12.1.2-2.491.el6_8.3.src.rpm, qemu-kvm-0.12.1.2-2.491.el6_8.3.x86_64.rpm, qemu-kvm-tools-0.12.1.2-2.491.el6_8.3.x86_64.rpm
CVE-2016-5403
rhn.redhat.com, lists.centos.org
2016-08-09
2017-07-27 19:11
v3.6/main/xen-4.7.0-r0
v3.5/main/xen-4.7.0-r0
v3.4/main/xen-4.6.3-r1
Important CentOS kvm Security Update
Moderate CentOS qemu-kvm Security Update
CVE-2016-5403 xen
CVE-2016-5403 qemu
CVE-2016-5403 qemu-kvm
CVE-2016-5403
2017-04-14 09:03
2017-04-01 19:10
2017-01-05 20:14

Description


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.

KVM (Kernel-based Virtual Machine) is a full virtualization solution for Linux on AMD64 and Intel 64 systems. The qemu-kvm packages provide the user-space component for running virtual machines using KVM.

Security Fix(es):

* Quick emulator(Qemu) built with the virtio framework is vulnerable to an unbounded memory allocation issue. It was found that a malicious guest user could submit more requests than the virtqueue size permits. Processing a request allocates a VirtQueueElement and therefore causes unbounded memory allocation on the host controlled by the guest. (CVE-2016-5403)

Red Hat would like to thank hongzhenhao (Marvel Team) for reporting this issue.
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-0.12.1.2-2.491.el6_8.3.i686.rpm
qemu-guest-agent qemu-guest-agent-0.12.1.2-2.491.el6_8.3.x86_64.rpm
qemu-img qemu-img-0.12.1.2-2.491.el6_8.3.x86_64.rpm
qemu-kvm qemu-kvm-0.12.1.2-2.491.el6_8.3.src.rpm
qemu-kvm qemu-kvm-0.12.1.2-2.491.el6_8.3.x86_64.rpm
qemu-kvm-tools qemu-kvm-tools-0.12.1.2-2.491.el6_8.3.x86_64.rpm