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Red Hat Enterprise MRG 2: RHSA-2019-4057-01 Major Kernel-RT Security Update

red hat
Calendar Grey December 3, 2019
Dist Redhat Esm H88
A critical kernel-rt upgrade for Red Hat Enterprise MRG 2 addresses vulnerabilities, including risks associated with denial of service.
An update for kernel-rt is now available for Red Hat Enterprise MRG 2

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: page cache side channel attacks (CVE-2019-5489)
* kernel: Handling of might_cancel queueing is not properly pretected against race (CVE-2017-10661)
* kernel: Inifinite loop vulnerability in mm/madvise.c:madvise_willneed() function allows local denial of service (CVE-2017-18208)
* kernel: use-after-free in drivers/char/ipmi/ipmi_si_intf.c, ipmi_si_mem_io.c, ipmi_si_port_io.c (CVE-2019-11811)
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):
* update the MRG 2.5.z 3.10 realtime-kernel sources (BZ#1765670)
* [MRG/R] pip_stress hangs when a priority inversion occurs (BZ#1772562)

Topics%20covered

Topics Covered

security advisory denial of service security issue red hat bug fix important kernel-rt

References

https://access.redhat.com/security/cve/CVE-2017-10661 https://access.redhat.com/security/cve/CVE-2017-18208 https://access.redhat.com/security/cve/CVE-2019-5489 https://access.redhat.com/security/cve/CVE-2019-11811 https://access.redhat.com/security/updates/classification#important

Package List

Red Hat MRG Realtime for RHEL 6 Server v.2:
Source: kernel-rt-3.10.0-693.61.1.rt56.656.el6rt.src.rpm
noarch: kernel-rt-doc-3.10.0-693.61.1.rt56.656.el6rt.noarch.rpm kernel-rt-firmware-3.10.0-693.61.1.rt56.656.el6rt.noarch.rpm
x86_64: kernel-rt-3.10.0-693.61.1.rt56.656.el6rt.x86_64.rpm kernel-rt-debug-3.10.0-693.61.1.rt56.656.el6rt.x86_64.rpm kernel-rt-debug-debuginfo-3.10.0-693.61.1.rt56.656.el6rt.x86_64.rpm kernel-rt-debug-devel-3.10.0-693.61.1.rt56.656.el6rt.x86_64.rpm kernel-rt-debuginfo-3.10.0-693.61.1.rt56.656.el6rt.x86_64.rpm kernel-rt-debuginfo-common-x86_64-3.10.0-693.61.1.rt56.656.el6rt.x86_64.rpm kernel-rt-devel-3.10.0-693.61.1.rt56.656.el6rt.x86_64.rpm kernel-rt-trace-3.10.0-693.61.1.rt56.656.el6rt.x86_64.rpm kernel-rt-trace-debuginfo-3.10.0-693.61.1.rt56.656.el6rt.x86_64.rpm kernel-rt-trace-devel-3.10.0-693.61.1.rt56.656.el6rt.x86_64.rpm kernel-rt-vanilla-3.10.0-693.61.1.rt56.656.el6rt.x86_64.rpm kernel-rt-vanilla-debuginfo-3.10.0-693.61.1.rt56.656.el6rt.x86_64.rpm kernel-rt-vanilla-devel-3.10.0-693.61.1.rt56.656.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-2019:4057-01
Product: Red Hat Enterprise MRG for RHEL-6
Advisory URL: https://access.redhat.com/errata/RHSA-2019:4057
Issue date: 2019-12-03

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 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 security issue red hat bug fix important kernel-rt

Relevant Releases Architectures

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

Bugs Fixed

1481136 - CVE-2017-10661 kernel: Handling of might_cancel queueing is not properly pretected against race

1551565 - CVE-2017-18208 kernel: Inifinite loop vulnerability in mm/madvise.c:madvise_willneed() function allows local denial of service

1664110 - CVE-2019-5489 Kernel: page cache side channel attacks

1709180 - CVE-2019-11811 kernel: use-after-free in drivers/char/ipmi/ipmi_si_intf.c, ipmi_si_mem_io.c, ipmi_si_port_io.c

1765670 - update the MRG 2.5.z 3.10 realtime-kernel sources

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