[Ksplice][EL8-Updates] New Ksplice updates for OL 8 and RHEL 8 (ELSA-2021-3548)

[Oracle Ksplice]

Synopsis: ELSA-2021-3548 can now be patched using Ksplice
CVEs: CVE-2021-3653 CVE-2021-3656

Systems running RHCK on Oracle Linux 8 and Red Hat Enterprise Linux 8
can now use Ksplice to patch against the latest Red Hat kernel update,
ELSA-2021-3548.
More information about this errata can be found at
https://linux.oracle.com/errata/ELSA-2021-3548.html

INSTALLING THE UPDATES

We recommend that all users of Ksplice Uptrack running OL 8 and RHEL 8
install these updates.

On systems that have "autoinstall = yes" in /etc/uptrack/uptrack.conf,
these updates will be installed automatically and you do not need to
take any action.

Alternatively, you can install these updates by running:

# /usr/sbin/uptrack-upgrade -y


DESCRIPTION

* CVE-2021-3656, CVE-2021-3653: Privilege escalation in the AMD SVM L2 guests handling.

Multiple security bypasses potentially allow L2 guests to read/write host
physical memory.  An untrusted L1 guest running on certain AMD CPUs could
use these flaws to run with full ring zero privileges.

SUPPORT

Ksplice support is available at ksplice-support_ww at oracle.com.