Red Hat Security Advisory 2019-3833-01 - The kernel-rt packages provide the Real Time Linux Kernel, which enables fine-tuning for systems with extremely high determinism requirements. Issues addressed include a denial of service vulnerability.
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Red Hat Security Advisory
Synopsis: Important: kernel-rt security update
Advisory ID: RHSA-2019:3833-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2019:3833
Issue date: 2019-11-12
CVE Names: CVE-2018-12207 CVE-2019-0154 CVE-2019-11135
=====================================================================
1. Summary:
An update for kernel-rt is now available for Red Hat Enterprise Linux 8.
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 Enterprise Linux Real Time (v. 8) - x86_64
Red Hat Enterprise Linux Real Time for NFV (v. 8) - x86_64
3. Description:
The kernel-rt packages provide the Real Time Linux Kernel, which enables
fine-tuning for systems with extremely high determinism requirements.
Security Fix(es):
* hw: Machine Check Error on Page Size Change (IFU) (CVE-2018-12207)
* hw: TSX Transaction Asynchronous Abort (TAA) (CVE-2019-11135)
* hw: Intel GPU Denial Of Service while accessing MMIO in lower power state
(CVE-2019-0154)
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.
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
The system must be rebooted for this update to take effect.
5. Bugs fixed (https://bugzilla.redhat.com/):
1646768 - CVE-2018-12207 hw: Machine Check Error on Page Size Change (IPU)
1724393 - CVE-2019-0154 hw: Intel GPU Denial Of Service while accessing MMIO in lower power state
1753062 - CVE-2019-11135 hw: TSX Transaction Asynchronous Abort (TAA)
6. Package List:
Red Hat Enterprise Linux Real Time for NFV (v. 8):
Source:
kernel-rt-4.18.0-147.0.2.rt24.94.el8_1.src.rpm
x86_64:
kernel-rt-4.18.0-147.0.2.rt24.94.el8_1.x86_64.rpm
kernel-rt-core-4.18.0-147.0.2.rt24.94.el8_1.x86_64.rpm
kernel-rt-debug-4.18.0-147.0.2.rt24.94.el8_1.x86_64.rpm
kernel-rt-debug-core-4.18.0-147.0.2.rt24.94.el8_1.x86_64.rpm
kernel-rt-debug-debuginfo-4.18.0-147.0.2.rt24.94.el8_1.x86_64.rpm
kernel-rt-debug-devel-4.18.0-147.0.2.rt24.94.el8_1.x86_64.rpm
kernel-rt-debug-kvm-4.18.0-147.0.2.rt24.94.el8_1.x86_64.rpm
kernel-rt-debug-kvm-debuginfo-4.18.0-147.0.2.rt24.94.el8_1.x86_64.rpm
kernel-rt-debug-modules-4.18.0-147.0.2.rt24.94.el8_1.x86_64.rpm
kernel-rt-debug-modules-extra-4.18.0-147.0.2.rt24.94.el8_1.x86_64.rpm
kernel-rt-debuginfo-4.18.0-147.0.2.rt24.94.el8_1.x86_64.rpm
kernel-rt-debuginfo-common-x86_64-4.18.0-147.0.2.rt24.94.el8_1.x86_64.rpm
kernel-rt-devel-4.18.0-147.0.2.rt24.94.el8_1.x86_64.rpm
kernel-rt-kvm-4.18.0-147.0.2.rt24.94.el8_1.x86_64.rpm
kernel-rt-kvm-debuginfo-4.18.0-147.0.2.rt24.94.el8_1.x86_64.rpm
kernel-rt-modules-4.18.0-147.0.2.rt24.94.el8_1.x86_64.rpm
kernel-rt-modules-extra-4.18.0-147.0.2.rt24.94.el8_1.x86_64.rpm
Red Hat Enterprise Linux Real Time (v. 8):
Source:
kernel-rt-4.18.0-147.0.2.rt24.94.el8_1.src.rpm
x86_64:
kernel-rt-4.18.0-147.0.2.rt24.94.el8_1.x86_64.rpm
kernel-rt-core-4.18.0-147.0.2.rt24.94.el8_1.x86_64.rpm
kernel-rt-debug-4.18.0-147.0.2.rt24.94.el8_1.x86_64.rpm
kernel-rt-debug-core-4.18.0-147.0.2.rt24.94.el8_1.x86_64.rpm
kernel-rt-debug-debuginfo-4.18.0-147.0.2.rt24.94.el8_1.x86_64.rpm
kernel-rt-debug-devel-4.18.0-147.0.2.rt24.94.el8_1.x86_64.rpm
kernel-rt-debug-kvm-debuginfo-4.18.0-147.0.2.rt24.94.el8_1.x86_64.rpm
kernel-rt-debug-modules-4.18.0-147.0.2.rt24.94.el8_1.x86_64.rpm
kernel-rt-debug-modules-extra-4.18.0-147.0.2.rt24.94.el8_1.x86_64.rpm
kernel-rt-debuginfo-4.18.0-147.0.2.rt24.94.el8_1.x86_64.rpm
kernel-rt-debuginfo-common-x86_64-4.18.0-147.0.2.rt24.94.el8_1.x86_64.rpm
kernel-rt-devel-4.18.0-147.0.2.rt24.94.el8_1.x86_64.rpm
kernel-rt-kvm-debuginfo-4.18.0-147.0.2.rt24.94.el8_1.x86_64.rpm
kernel-rt-modules-4.18.0-147.0.2.rt24.94.el8_1.x86_64.rpm
kernel-rt-modules-extra-4.18.0-147.0.2.rt24.94.el8_1.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-2018-12207
https://access.redhat.com/security/cve/CVE-2019-0154
https://access.redhat.com/security/cve/CVE-2019-11135
https://access.redhat.com/security/updates/classification/#important
https://access.redhat.com/security/vulnerabilities/ifu-page-mce
https://access.redhat.com/solutions/tsx-asynchronousabort
https://access.redhat.com/solutions/i915-graphics
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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