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Red Hat Enterprise Linux 8: RHSA-2020-2171-01 Important: Kernel-Rt Security

red hat
Calendar Grey May 14, 2020
Dist Redhat Esm H88
The latest update for Debian's kernel offers crucial security patches and error resolutions, enhancing overall system reliability.
An update for kernel-rt is now available for Red Hat Enterprise Linux 8

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: NetLabel: null pointer dereference while receiving CIPSO packet with null category may cause kernel panic (CVE-2020-10711)
* Kernel: kvm: nVMX: L2 guest may trick the L0 hypervisor to access sensitive L1 resources (CVE-2020-2732)
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):
* kernel-rt: update RT source tree to the latest RHEL-8.2.z source tree (BZ#1831781)

Topics%20covered

Topics Covered

security advisory Red Hat bug fix important security impact kernel panic kernel-rt

References

https://access.redhat.com/security/cve/CVE-2020-2732 https://access.redhat.com/security/cve/CVE-2020-10711 https://access.redhat.com/security/updates/classification/#important

Package List

Red Hat Enterprise Linux Real Time for NFV (v. 8):
Source: kernel-rt-4.18.0-193.1.2.rt13.53.el8_2.src.rpm
x86_64: kernel-rt-4.18.0-193.1.2.rt13.53.el8_2.x86_64.rpm kernel-rt-core-4.18.0-193.1.2.rt13.53.el8_2.x86_64.rpm kernel-rt-debug-4.18.0-193.1.2.rt13.53.el8_2.x86_64.rpm kernel-rt-debug-core-4.18.0-193.1.2.rt13.53.el8_2.x86_64.rpm kernel-rt-debug-debuginfo-4.18.0-193.1.2.rt13.53.el8_2.x86_64.rpm kernel-rt-debug-devel-4.18.0-193.1.2.rt13.53.el8_2.x86_64.rpm kernel-rt-debug-kvm-4.18.0-193.1.2.rt13.53.el8_2.x86_64.rpm kernel-rt-debug-modules-4.18.0-193.1.2.rt13.53.el8_2.x86_64.rpm kernel-rt-debug-modules-extra-4.18.0-193.1.2.rt13.53.el8_2.x86_64.rpm kernel-rt-debuginfo-4.18.0-193.1.2.rt13.53.el8_2.x86_64.rpm kernel-rt-debuginfo-common-x86_64-4.18.0-193.1.2.rt13.53.el8_2.x86_64.rpm kernel-rt-devel-4.18.0-193.1.2.rt13.53.el8_2.x86_64.rpm kernel-rt-kvm-4.18.0-193.1.2.rt13.53.el8_2.x86_64.rpm kernel-rt-modules-4.18.0-193.1.2.rt13.53.el8_2.x86_64.rpm kernel-rt-modules-extra-4.18.0-193.1.2.rt13.53.el8_2.x86_64.rpm
Red Hat Enterprise Linux Real Time (v. 8):
Source: kernel-rt-4.18.0-193.1.2.rt13.53.el8_2.src.rpm
x86_64: kernel-rt-4.18.0-193.1.2.rt13.53.el8_2.x86_64.rpm kernel-rt-core-4.18.0-193.1.2.rt13.53.el8_2.x86_64.rpm kernel-rt-debug-4.18.0-193.1.2.rt13.53.el8_2.x86_64.rpm

Read the Full Advisory


Severity
important
Lowest
Low
Medium
High
Critical

Advisory ID: RHSA-2020:2171-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2020:2171
Issue date: 2020-05-14

Topic

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 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 Red Hat bug fix important security impact kernel panic kernel-rt

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

Bugs Fixed

1805135 - CVE-2020-2732 Kernel: kvm: nVMX: L2 guest may trick the L0 hypervisor to access sensitive L1 resources

1825116 - CVE-2020-10711 Kernel: NetLabel: null pointer dereference while receiving CIPSO packet with null category may cause kernel panic

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