[El-errata] New Ksplice updates for RHCK 8 (ELSA-2019-1959)

[Errata Announcements for Oracle Linux]

Synopsis: ELSA-2019-1959 can now be patched using Ksplice
CVEs: CVE-2018-20784 CVE-2019-11085 CVE-2019-11810 CVE-2019-11811

Users with Oracle Linux Premier Support can now use Ksplice to patch
against the latest Oracle Linux Security Advisory, ELSA-2019-1959.
More information about this errata can be found at
https://linux.oracle.com/errata/ELSA-2019-1959.html

INSTALLING THE UPDATES

We recommend that all users of Ksplice Uptrack running RHCK 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-2019-11085: Privilege escalation in Intel i915 pass-through devices.

Incorrect address validation for an Intel i915 device passed through to
a virtual machine could result in an out-of-bounds memory access.  A
privileged user in the VM could use this flaw to crash the host or
potentially leak the memory contents of the host or other VMs on the
system.


* CVE-2019-11810: Denial-of-service in LSI Logic MegaRAID probing.

A logic error in the LSI Logic MegaRAID device probing could result in a
NULL pointer dereference and kernel crash under specific conditions.


* CVE-2019-11811: Privilege escalation in IPMI module unload.

Incorrect error handling could result in an invalid pointer dereference
on reads of /proc/ioports after unloading the IPMI driver.  A local user
could use this flaw to crash the system, disclose sensitive memory
contents or potentially escalate privileges.


* CVE-2018-20784: Denial-of-service in task scheduling.

A logic in the kernel task scheduler could result in an infinite loop
under high load conditions.  A local, unprivileged user could use this
flaw to cause a denial of service.

SUPPORT

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