El-errata: New Ksplice updates for RHCK 7 (ELSA-2020-5023)

Synopsis: ELSA-2020-5023 can now be patched using Ksplice
CVEs: CVE-2019-20811 CVE-2020-14331

Users with Oracle Linux Premier Support can now use Ksplice to patch
against the latest Oracle Linux Security Advisory, ELSA-2020-5023.
More information about this errata can be found at
  https://linux.oracle.com/errata/ELSA-2020-5023.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

* KSPLICE enablement for patching KVM Intel module.



* CVE-2019-20811: Denial-of-service in network device sysfs system.

An inability to correctly handle an error condition when adding certain objects
in the net sysfs code could lead to an invalid refcount and thus a memory leak.
This could be used for a denial-of-service attack.

* CVE-2020-14331: Out-of-bounds writes in ioctls of Console display driver.

Out-of-bounds writes in ioctls of Console display driver could happen
when calling an ioctl VT_RESIZE in order to resize the console. This
flaw could allow a local user with access to the VGA console to crash
the system or potentially escalating their privileges on the system.

Orabug: 31705122

SUPPORT

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