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Red Hat Enterprise MRG 2 RHSA-2019-3844-01 Critical: Kernel-Rt DoS Fix

red hat
Calendar Grey November 12, 2019
Dist Redhat Esm H88
An important kernel-rt patch for Red Hat Enterprise MRG 2 has been issued, addressing multiple security flaws and CVEs.
An update for kernel-rt is now available for Red Hat Enterprise MRG 2. Red Hat Product Security has rated this update as having a security impact of Important

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.

Summary

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.

Topics%20covered

Topics Covered

security advisory security issue update important dos kernel-rt red hat mrg

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/articles/tsx-asynchronousabort https://access.redhat.com/solutions/i915-graphics

Package List

Red Hat MRG Realtime for RHEL 6 Server v.2:
Source: kernel-rt-3.10.0-693.60.2.rt56.655.el6rt.src.rpm
noarch: kernel-rt-doc-3.10.0-693.60.2.rt56.655.el6rt.noarch.rpm kernel-rt-firmware-3.10.0-693.60.2.rt56.655.el6rt.noarch.rpm
x86_64: kernel-rt-3.10.0-693.60.2.rt56.655.el6rt.x86_64.rpm kernel-rt-debug-3.10.0-693.60.2.rt56.655.el6rt.x86_64.rpm kernel-rt-debug-debuginfo-3.10.0-693.60.2.rt56.655.el6rt.x86_64.rpm kernel-rt-debug-devel-3.10.0-693.60.2.rt56.655.el6rt.x86_64.rpm kernel-rt-debuginfo-3.10.0-693.60.2.rt56.655.el6rt.x86_64.rpm kernel-rt-debuginfo-common-x86_64-3.10.0-693.60.2.rt56.655.el6rt.x86_64.rpm kernel-rt-devel-3.10.0-693.60.2.rt56.655.el6rt.x86_64.rpm kernel-rt-trace-3.10.0-693.60.2.rt56.655.el6rt.x86_64.rpm kernel-rt-trace-debuginfo-3.10.0-693.60.2.rt56.655.el6rt.x86_64.rpm kernel-rt-trace-devel-3.10.0-693.60.2.rt56.655.el6rt.x86_64.rpm kernel-rt-vanilla-3.10.0-693.60.2.rt56.655.el6rt.x86_64.rpm kernel-rt-vanilla-debuginfo-3.10.0-693.60.2.rt56.655.el6rt.x86_64.rpm kernel-rt-vanilla-devel-3.10.0-693.60.2.rt56.655.el6rt.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


Severity
important
Lowest
Low
Medium
High
Critical

Advisory ID: RHSA-2019:3844-01
Product: Red Hat Enterprise MRG for RHEL-6
Advisory URL: https://access.redhat.com/errata/RHSA-2019:3844
Issue date: 2019-11-12

Topic

An update for kernel-rt is now available for Red Hat Enterprise MRG 2.

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.

Topics%20covered

Topics Covered

security advisory security issue update important dos kernel-rt red hat mrg

Relevant Releases Architectures

Red Hat MRG Realtime for RHEL 6 Server v.2 - noarch, x86_64

Bugs Fixed

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)

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