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Red Hat Enterprise Linux 8 RHSA-2019:3936-01 Important kpatch-patch Update

red hat
Calendar Grey November 20, 2019
Dist Redhat Esm H88
Red Hat unveils a critical update for kpatch. Learn about the security implications and essential fixes required.
An update for kpatch-patch is now available for Red Hat Enterprise Linux 8. Red Hat Product Security has rated this update as having a security impact of Important

Solution

Before applying this update, make sure all previously released errata relevant to your system have been applied.

For details on how to apply this update, which includes the changes described in this advisory, refer to:

https://access.redhat.com/articles/11258

Summary

This is a kernel live patch module which is automatically loaded by the RPM post-install script to modify the code of a running kernel.
Security Fix(es):
* hw: Machine Check Error on Page Size Change (IFU) (CVE-2018-12207)
* hw: TSX Transaction Asynchronous Abort (TAA) (CVE-2019-11135)

Topics%20covered

Topics Covered

security advisory Red Hat Enterprise Linux security impact important update kpatch-patch

References

https://access.redhat.com/security/cve/CVE-2018-12207 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/solutions/tsx-asynchronousabort

Package List

Red Hat Enterprise Linux BaseOS (v. 8):
Source: kpatch-patch-4_18_0-147-1-3.el8_1.src.rpm
x86_64: kpatch-patch-4_18_0-147-1-3.el8_1.x86_64.rpm kpatch-patch-4_18_0-147-debuginfo-1-3.el8_1.x86_64.rpm kpatch-patch-4_18_0-147-debugsource-1-3.el8_1.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-2019:3936-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2019:3936
Issue date: 2019-11-20

Topic

An update for kpatch-patch is now available for Red Hat Enterprise Linux 8.

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 Red Hat Enterprise Linux security impact important update kpatch-patch

Relevant Releases Architectures

Red Hat Enterprise Linux BaseOS (v. 8) - x86_64

Bugs Fixed

1646768 - CVE-2018-12207 hw: Machine Check Error on Page Size Change (IFU)

1753062 - CVE-2019-11135 hw: TSX Transaction Asynchronous Abort (TAA)

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