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Red Hat Security Advisory 2020-0666-01

Red Hat Security Advisory 2020-0666-01
Posted Mar 3, 2020
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2020-0666-01 - Kernel-based Virtual Machine 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.

tags | advisory, kernel
systems | linux, redhat
advisories | CVE-2019-11135
SHA-256 | 970ebb7260fc6a24f04f64db39246cbb8c07532b4d5d881a871042dfd6307a61

Red Hat Security Advisory 2020-0666-01

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

Synopsis: Moderate: qemu-kvm security and enhancement update
Advisory ID: RHSA-2020:0666-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2020:0666
Issue date: 2020-03-03
CVE Names: CVE-2019-11135
====================================================================
1. Summary:

An update for qemu-kvm is now available for Red Hat Enterprise Linux 7.6
Extended Update Support.

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 ComputeNode Optional EUS (v. 7.6) - x86_64
Red Hat Enterprise Linux Server EUS (v. 7.6) - 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):

* hw: TSX Transaction Asynchronous Abort (TAA) (CVE-2019-11135)

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

Enhancement(s):

* [Intel 7.8 FEAT] MDS_NO exposure to guest - qemu-kvm (BZ#1755332)

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/):

1753062 - CVE-2019-11135 hw: TSX Transaction Asynchronous Abort (TAA)

6. Package List:

Red Hat Enterprise Linux ComputeNode Optional EUS (v. 7.6):

Source:
qemu-kvm-1.5.3-160.el7_6.5.src.rpm

x86_64:
qemu-img-1.5.3-160.el7_6.5.x86_64.rpm
qemu-kvm-1.5.3-160.el7_6.5.x86_64.rpm
qemu-kvm-common-1.5.3-160.el7_6.5.x86_64.rpm
qemu-kvm-debuginfo-1.5.3-160.el7_6.5.x86_64.rpm
qemu-kvm-tools-1.5.3-160.el7_6.5.x86_64.rpm

Red Hat Enterprise Linux Server EUS (v. 7.6):

Source:
qemu-kvm-1.5.3-160.el7_6.5.src.rpm

x86_64:
qemu-img-1.5.3-160.el7_6.5.x86_64.rpm
qemu-kvm-1.5.3-160.el7_6.5.x86_64.rpm
qemu-kvm-common-1.5.3-160.el7_6.5.x86_64.rpm
qemu-kvm-debuginfo-1.5.3-160.el7_6.5.x86_64.rpm
qemu-kvm-tools-1.5.3-160.el7_6.5.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-2019-11135
https://access.redhat.com/security/updates/classification/#moderate
https://access.redhat.com/solutions/tsx-asynchronousabort

8. Contact:

The Red Hat security contact is <secalert@redhat.com>. More contact
details at https://access.redhat.com/security/team/contact/

Copyright 2020 Red Hat, Inc.
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