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Red Hat Security Advisory 2019-2507-01

Red Hat Security Advisory 2019-2507-01
Posted Aug 15, 2019
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2019-2507-01 - KVM 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. Issues addressed include a buffer overflow vulnerability.

tags | advisory, overflow
systems | linux, redhat
advisories | CVE-2018-20815
SHA-256 | ba65daf762bcd7d41c3f00008538b5b88f7b944151b1616f3b39604af20d47fe

Red Hat Security Advisory 2019-2507-01

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=====================================================================
Red Hat Security Advisory

Synopsis: Important: qemu-kvm-rhev security update
Advisory ID: RHSA-2019:2507-01
Product: Red Hat Enterprise Linux OpenStack Platform
Advisory URL: https://access.redhat.com/errata/RHSA-2019:2507
Issue date: 2019-08-15
CVE Names: CVE-2018-20815
=====================================================================

1. Summary:

An update for qemu-kvm-rhev is now available for Red Hat OpenStack Platform
9.0 (Mitaka).

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 OpenStack Platform 9.0 - 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: device_tree: heap buffer overflow while loading device tree blob
(CVE-2018-20815)

For more details about the security issue(s), including the impact, a CVSS
score, acknowledgments, and other related information, refer to the CVE
page listed in 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/):

1693101 - CVE-2018-20815 QEMU: device_tree: heap buffer overflow while loading device tree blob

6. Package List:

Red Hat OpenStack Platform 9.0:

Source:
qemu-kvm-rhev-2.12.0-18.el7_6.6.src.rpm

x86_64:
qemu-img-rhev-2.12.0-18.el7_6.6.x86_64.rpm
qemu-kvm-common-rhev-2.12.0-18.el7_6.6.x86_64.rpm
qemu-kvm-rhev-2.12.0-18.el7_6.6.x86_64.rpm
qemu-kvm-rhev-debuginfo-2.12.0-18.el7_6.6.x86_64.rpm
qemu-kvm-tools-rhev-2.12.0-18.el7_6.6.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-2018-20815
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 2019 Red Hat, Inc.
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