[El-errata] New Ksplice updates for RHCK 7 (RHSA-2018-0395)

[Errata Announcements for Oracle Linux]

Synopsis: ELSA-2018-0395 can now be patched using Ksplice
CVEs: CVE-2017-12188 CVE-2017-7518

Users with Oracle Linux Premier Support can now use Ksplice to patch
against the latest Oracle kernel update, ELSA-2018-0395.

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-2017-7518: Privilege escalation in KVM emulation subsystem.

An implementation error in the syscall instruction emulation in KVM
leads to a kernel exception raised in userspace. A user/process inside
guest could use this flaw to potentially escalate their privileges
inside guest.


* CVE-2017-12188: Out-of-bounds memory access during KVM page table walk.

A logic error in the page table management of KVM guests can result in
an out-of-bounds memory access. A guest virtual machine could use this
flaw to crash the host or potentially execute malicious code with host
privileges.

SUPPORT

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