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Red Hat Enterprise Linux 7: RHSA-2019:2609-01 kernel-rt Important Fix

red hat
Calendar Grey September 3, 2019
Dist Redhat Esm H88
Ubuntu Server has a Critical patch for libc6, addressing several vulnerabilities and necessitating a system restart.
An update for kernel-rt is now available for Red Hat Enterprise Linux 7

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):
* kernel: hw: Spectre SWAPGS gadget vulnerability (CVE-2019-1125)
* kernel: brcmfmac heap buffer overflow in brcmf_wowl_nd_results (CVE-2019-9500)
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.
Bug Fix(es):
* BUG: scheduling while atomic in zswap (BZ#1737372)
* kernel-rt: update to the RHEL7.7.z batch#1 source tree (BZ#1740918)

Topics%20covered

Topics Covered

security advisory denial of service Red Hat buffer overflow important kernel-rt

References

https://access.redhat.com/security/cve/CVE-2019-1125 https://access.redhat.com/security/cve/CVE-2019-9500 https://access.redhat.com/security/updates/classification#important https://access.redhat.com/articles/4329821

Package List

Red Hat Enterprise Linux for Real Time for NFV (v. 7):
Source: kernel-rt-3.10.0-1062.1.1.rt56.1024.el7.src.rpm
noarch: kernel-rt-doc-3.10.0-1062.1.1.rt56.1024.el7.noarch.rpm
x86_64: kernel-rt-3.10.0-1062.1.1.rt56.1024.el7.x86_64.rpm kernel-rt-debug-3.10.0-1062.1.1.rt56.1024.el7.x86_64.rpm kernel-rt-debug-debuginfo-3.10.0-1062.1.1.rt56.1024.el7.x86_64.rpm kernel-rt-debug-devel-3.10.0-1062.1.1.rt56.1024.el7.x86_64.rpm kernel-rt-debug-kvm-3.10.0-1062.1.1.rt56.1024.el7.x86_64.rpm kernel-rt-debug-kvm-debuginfo-3.10.0-1062.1.1.rt56.1024.el7.x86_64.rpm kernel-rt-debuginfo-3.10.0-1062.1.1.rt56.1024.el7.x86_64.rpm kernel-rt-debuginfo-common-x86_64-3.10.0-1062.1.1.rt56.1024.el7.x86_64.rpm kernel-rt-devel-3.10.0-1062.1.1.rt56.1024.el7.x86_64.rpm kernel-rt-kvm-3.10.0-1062.1.1.rt56.1024.el7.x86_64.rpm kernel-rt-kvm-debuginfo-3.10.0-1062.1.1.rt56.1024.el7.x86_64.rpm kernel-rt-trace-3.10.0-1062.1.1.rt56.1024.el7.x86_64.rpm kernel-rt-trace-debuginfo-3.10.0-1062.1.1.rt56.1024.el7.x86_64.rpm kernel-rt-trace-devel-3.10.0-1062.1.1.rt56.1024.el7.x86_64.rpm kernel-rt-trace-kvm-3.10.0-1062.1.1.rt56.1024.el7.x86_64.rpm kernel-rt-trace-kvm-debuginfo-3.10.0-1062.1.1.rt56.1024.el7.x86_64.rpm
Red Hat Enterprise Linux Realtime (v. 7):
Source: kernel-rt-3.10.0-1062.1.1.rt56.1024.el7.src.rpm
noarch:

Read the Full Advisory


Severity
important
Lowest
Low
Medium
High
Critical

Advisory ID: RHSA-2019:2609-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2019:2609
Issue date: 2019-09-03

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 impactof Important. A Common Vulnerability Scoring System (CVSS) base score,which gives a detailed severity rating, is available for each vulnerabilityfrom the CVE link(s) in the References section.

Topics%20covered

Topics Covered

security advisory denial of service Red Hat buffer overflow 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

1701224 - CVE-2019-9500 kernel: brcmfmac heap buffer overflow in brcmf_wowl_nd_results

1724389 - CVE-2019-1125 kernel: hw: Spectre SWAPGS gadget vulnerability

1737372 - BUG: scheduling while atomic in zswap [rhel-7.7.z]

1740918 - kernel-rt: update to the RHEL7.7.z batch#1 source tree

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