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Red Hat Security Advisory
Synopsis: Important: qemu-kvm-rhev security update
Advisory ID: RHSA-2018:2887-01
Product: Red Hat Virtualization
Advisory URL: https://access.redhat.com/errata/RHSA-2018:2887
Issue date: 2018-10-09
CVE Names: CVE-2018-11806
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1. Summary:
An update for qemu-kvm-rhev is now available for Red Hat Virtualization 4
for Red Hat Enterprise Linux 7.
Red Hat Product Security has rated this update as having a security impact
of Important. 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 Virtualization 4 Management Agent for RHEL 7 Hosts – ppc64le, x86_64
3. Description:
KVM (Kernel-based Virtual Machine) is a full virtualization solution for
Linux on a variety of architectures. The qemu-kvm-rhev packages provide the
user-space component for running virtual machines that use KVM in
environments managed by Red Hat products.
Security Fix(es):
* QEMU: slirp: heap buffer overflow while reassembling fragmented datagrams
(CVE-2018-11806)
For more details about the security issue(s), including the impact, a CVSS
score, and other related information, refer to the CVE page(s) listed in
the References section.
Red Hat would like to thank Jskz – Zero Day Initiative (trendmicro.com) for
reporting this issue.
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/2974891
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/):
1586245 – CVE-2018-11806 QEMU: slirp: heap buffer overflow while reassembling fragmented datagrams
1619128 – VM doesn’t boot from HD [rhel-7.5.z]
6. Package List:
Red Hat Virtualization 4 Management Agent for RHEL 7 Hosts:
Source:
qemu-kvm-rhev-2.10.0-21.el7_5.7.src.rpm
ppc64le:
qemu-img-rhev-2.10.0-21.el7_5.7.ppc64le.rpm
qemu-kvm-common-rhev-2.10.0-21.el7_5.7.ppc64le.rpm
qemu-kvm-rhev-2.10.0-21.el7_5.7.ppc64le.rpm
qemu-kvm-rhev-debuginfo-2.10.0-21.el7_5.7.ppc64le.rpm
qemu-kvm-tools-rhev-2.10.0-21.el7_5.7.ppc64le.rpm
x86_64:
qemu-img-rhev-2.10.0-21.el7_5.7.x86_64.rpm
qemu-kvm-common-rhev-2.10.0-21.el7_5.7.x86_64.rpm
qemu-kvm-rhev-2.10.0-21.el7_5.7.x86_64.rpm
qemu-kvm-rhev-debuginfo-2.10.0-21.el7_5.7.x86_64.rpm
qemu-kvm-tools-rhev-2.10.0-21.el7_5.7.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-2018-11806
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 2018 Red Hat, Inc.
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