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=====================================================================
                   Red Hat Security Advisory

Synopsis:          Important: kpatch-patch security update
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
CVE Names:         CVE-2018-12207 CVE-2019-11135 
=====================================================================

1. Summary:

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.

2. Relevant releases/architectures:

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

3. Description:

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)

4. 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

5. Bugs fixed (https://bugzilla.redhat.com/):

1646768 - CVE-2018-12207 hw: Machine Check Error on Page Size Change (IFU)
1753062 - CVE-2019-11135 hw: TSX Transaction Asynchronous Abort (TAA)

6. 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/

7. 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

8. Contact:

The Red Hat security contact is <secalert@redhat.com>. More contact
details at https://access.redhat.com/security/team/contact/

Copyright 2019 Red Hat, Inc.
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