Twenty Year Anniversary

Red Hat Security Advisory 2018-2228-01

Red Hat Security Advisory 2018-2228-01
Posted Jul 19, 2018
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2018-2228-01 - 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 bypass vulnerability.

tags | advisory, bypass
systems | linux, redhat
advisories | CVE-2018-3639
MD5 | d3c8def83c9a3ce2f920fcfdd6aa1b87

Red Hat Security Advisory 2018-2228-01

Change Mirror Download
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA256

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

Synopsis: Important: qemu-kvm-rhev security update
Advisory ID: RHSA-2018:2228-01
Product: Red Hat Enterprise Linux OpenStack Platform
Advisory URL: https://access.redhat.com/errata/RHSA-2018:2228
Issue date: 2018-07-19
CVE Names: CVE-2018-3639
=====================================================================

1. Summary:

An update for qemu-kvm-rhev is now available for Red Hat OpenStack Platform
13.

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 13.0 - 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):

* An industry-wide issue was found in the way many modern microprocessor
designs have implemented speculative execution of Load & Store instructions
(a commonly used performance optimization). It relies on the presence of a
precisely-defined instruction sequence in the privileged code as well as
the fact that memory read from address to which a recent memory write has
occurred may see an older value and subsequently cause an update into the
microprocessor's data cache even for speculatively executed instructions
that never actually commit (retire). As a result, an unprivileged attacker
could use this flaw to read privileged memory by conducting targeted cache
side-channel attacks. (CVE-2018-3639)

Red Hat would like to thank Ken Johnson (Microsoft Security Response
Center) and Jann Horn (Google Project Zero) for reporting this issue.

Note: This is the qemu-kvm-rhev side of the CVE-2018-3639 mitigation that
includes support for guests running on hosts with AMD processors.

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.

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

5. Bugs fixed (https://bugzilla.redhat.com/):

1566890 - CVE-2018-3639 hw: cpu: speculative store bypass

6. Package List:

Red Hat OpenStack Platform 13.0:

Source:
qemu-kvm-rhev-2.10.0-21.el7_5.4.src.rpm

ppc64le:
qemu-img-rhev-2.10.0-21.el7_5.4.ppc64le.rpm
qemu-kvm-common-rhev-2.10.0-21.el7_5.4.ppc64le.rpm
qemu-kvm-rhev-2.10.0-21.el7_5.4.ppc64le.rpm
qemu-kvm-rhev-debuginfo-2.10.0-21.el7_5.4.ppc64le.rpm
qemu-kvm-tools-rhev-2.10.0-21.el7_5.4.ppc64le.rpm

x86_64:
qemu-img-rhev-2.10.0-21.el7_5.4.x86_64.rpm
qemu-kvm-common-rhev-2.10.0-21.el7_5.4.x86_64.rpm
qemu-kvm-rhev-2.10.0-21.el7_5.4.x86_64.rpm
qemu-kvm-rhev-debuginfo-2.10.0-21.el7_5.4.x86_64.rpm
qemu-kvm-tools-rhev-2.10.0-21.el7_5.4.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-2018-3639
https://access.redhat.com/security/updates/classification/#important
https://access.redhat.com/security/vulnerabilities/ssbd

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.
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1
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=kVcy
-----END PGP SIGNATURE-----

--
RHSA-announce mailing list
RHSA-announce@redhat.com
https://www.redhat.com/mailman/listinfo/rhsa-announce

Comments

RSS Feed Subscribe to this comment feed

No comments yet, be the first!

Login or Register to post a comment

File Archive:

December 2018

  • Su
  • Mo
  • Tu
  • We
  • Th
  • Fr
  • Sa
  • 1
    Dec 1st
    11 Files
  • 2
    Dec 2nd
    1 Files
  • 3
    Dec 3rd
    18 Files
  • 4
    Dec 4th
    40 Files
  • 5
    Dec 5th
    16 Files
  • 6
    Dec 6th
    50 Files
  • 7
    Dec 7th
    12 Files
  • 8
    Dec 8th
    1 Files
  • 9
    Dec 9th
    1 Files
  • 10
    Dec 10th
    15 Files
  • 11
    Dec 11th
    30 Files
  • 12
    Dec 12th
    25 Files
  • 13
    Dec 13th
    15 Files
  • 14
    Dec 14th
    0 Files
  • 15
    Dec 15th
    0 Files
  • 16
    Dec 16th
    0 Files
  • 17
    Dec 17th
    0 Files
  • 18
    Dec 18th
    0 Files
  • 19
    Dec 19th
    0 Files
  • 20
    Dec 20th
    0 Files
  • 21
    Dec 21st
    0 Files
  • 22
    Dec 22nd
    0 Files
  • 23
    Dec 23rd
    0 Files
  • 24
    Dec 24th
    0 Files
  • 25
    Dec 25th
    0 Files
  • 26
    Dec 26th
    0 Files
  • 27
    Dec 27th
    0 Files
  • 28
    Dec 28th
    0 Files
  • 29
    Dec 29th
    0 Files
  • 30
    Dec 30th
    0 Files
  • 31
    Dec 31st
    0 Files

Top Authors In Last 30 Days

File Tags

Systems

packet storm

© 2018 Packet Storm. All rights reserved.

Services
Security Services
Hosting By
Rokasec
close