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Red Hat Enterprise Linux 7: RHSA-2019-3835-01 Important: Kernel-RT DoS

red hat
Calendar Grey November 12, 2019
Dist Redhat Esm H88
Kernel-rt security patch for Red Hat Enterprise Linux 7 classified as critical. Contains resolutions for various vulnerabilities.
An update for kernel-rt is now available for Red Hat Enterprise Linux 7. 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 DoS Red Hat Enterprise Linux important kernel-rt

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 Enterprise Linux for Real Time for NFV (v. 7):
Source: kernel-rt-3.10.0-1062.4.2.rt56.1028.el7.src.rpm
noarch: kernel-rt-doc-3.10.0-1062.4.2.rt56.1028.el7.noarch.rpm
x86_64: kernel-rt-3.10.0-1062.4.2.rt56.1028.el7.x86_64.rpm kernel-rt-debug-3.10.0-1062.4.2.rt56.1028.el7.x86_64.rpm kernel-rt-debug-debuginfo-3.10.0-1062.4.2.rt56.1028.el7.x86_64.rpm kernel-rt-debug-devel-3.10.0-1062.4.2.rt56.1028.el7.x86_64.rpm kernel-rt-debug-kvm-3.10.0-1062.4.2.rt56.1028.el7.x86_64.rpm kernel-rt-debug-kvm-debuginfo-3.10.0-1062.4.2.rt56.1028.el7.x86_64.rpm kernel-rt-debuginfo-3.10.0-1062.4.2.rt56.1028.el7.x86_64.rpm kernel-rt-debuginfo-common-x86_64-3.10.0-1062.4.2.rt56.1028.el7.x86_64.rpm kernel-rt-devel-3.10.0-1062.4.2.rt56.1028.el7.x86_64.rpm kernel-rt-kvm-3.10.0-1062.4.2.rt56.1028.el7.x86_64.rpm kernel-rt-kvm-debuginfo-3.10.0-1062.4.2.rt56.1028.el7.x86_64.rpm kernel-rt-trace-3.10.0-1062.4.2.rt56.1028.el7.x86_64.rpm kernel-rt-trace-debuginfo-3.10.0-1062.4.2.rt56.1028.el7.x86_64.rpm kernel-rt-trace-devel-3.10.0-1062.4.2.rt56.1028.el7.x86_64.rpm kernel-rt-trace-kvm-3.10.0-1062.4.2.rt56.1028.el7.x86_64.rpm kernel-rt-trace-kvm-debuginfo-3.10.0-1062.4.2.rt56.1028.el7.x86_64.rpm
Red Hat Enterprise Linux Realtime (v. 7):
Source:

Read the Full Advisory


Severity
important
Lowest
Low
Medium
High
Critical

Advisory ID: RHSA-2019:3835-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2019:3835
Issue date: 2019-11-12

Topic

An update for kernel-rt is now available for Red Hat Enterprise Linux 7.

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 DoS Red Hat Enterprise Linux important kernel-rt

Relevant Releases Architectures

Red Hat Enterprise Linux Realtime (v. 7) - noarch, x86_64

Red Hat Enterprise Linux for Real Time for NFV (v. 7) - 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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