[El-errata] New Ksplice updates for UEKR4 4.1.12 on OL6 and OL7 (ELSA-2020-5962)

[Errata Announcements for Oracle Linux]

Synopsis: ELSA-2020-5962 can now be patched using Ksplice
CVEs: CVE-2017-9605 CVE-2020-16166

Users with Oracle Linux Premier Support can now use Ksplice to patch
against the latest Oracle Linux Security Advisory, ELSA-2020-5962.
More information about this errata can be found at
https://linux.oracle.com/errata/ELSA-2020-5962.html

INSTALLING THE UPDATES

We recommend that all users of Ksplice Uptrack running UEKR4 4.1.12 on
OL6 and OL7 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-2020-16166: Confidentiality vulnerability in the generation of the 
device ID.

A flaw in the generation of the device ID from the network RNG could
result in a potential issue allowing remote attackers to make
observations that help to obtain sensitive information about
the internal state of the network RNG and compromise the data
confidentiality.

Orabug: 31698086


* Guest VM leaks bits into host control register, causing host to panic.

In the event that a guest VM schedules out during a machine check error,
the host's XCR0 register may get populated with incorrect values.  This
will cause a general protection fault on the host, leading to a
denial-of-service.

Orabug: 32021856


* CVE-2017-9605: Information leak when user defines surface in VMware 
Virtual GPU driver.

A missing initialization of local variable when user defines surface in
VMXGFX driver could leak stack information. A local attacker could use
this flaw to gain information about the running kernel and facilitate an
attack.

Orabug: 31352076

SUPPORT

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