El-errata: New Ksplice updates for RHCK 7 (ELSA-2020-2664)

Synopsis: ELSA-2020-2664 can now be patched using Ksplice
CVEs: CVE-2020-0543 CVE-2020-12888

Users with Oracle Linux Premier Support can now use Ksplice to patch
against the latest Oracle Linux Security Advisory, ELSA-2020-2664.
More information about this errata can be found at
  https://linux.oracle.com/errata/ELSA-2020-2664.html

INSTALLING THE UPDATES

We recommend that all users of Ksplice Uptrack running RHCK 7 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-2020-0543: Side-channel information leak using SRBDS.

A side-channel information leak on some generations of Intel processors
could allow the leaking of internal microarchitectural buffers used by
instructions like RDRAND, RDSEED and SGX EGETKEY.

Updated microcode is required for this vulnerability to be mitigated.

The status of the mitigation can be found using the following command:
$ cat /sys/devices/system/cpu/vulnerabilities/srbds

* Note: Oracle is still investigating potential zero-downtime mitigations for CVE-2020-12888.

Fixes for this CVE are still undergoing analysis and testing. A
zero-downtime update may be provided at a later date.

* CVE-2020-12888: Denial-of-service when accessing PCI memory through VFIO.


SUPPORT

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