[Ksplice][EL7-Updates] New Ksplice updates for OL 7, RHEL 7, CentOS 7, and Scientific Linux 7 (ELSA-2018-1319)

[Oracle Ksplice]

Synopsis: ELSA-2018-1319 can now be patched using Ksplice
CVEs: CVE-2017-16939 CVE-2018-1000199 CVE-2018-1068 CVE-2018-1087 CVE-2018-8897

Systems running RHCK on Oracle Linux 7, Red Hat Enterprise Linux 7,
CentOS 7, and Scientific Linux 7 can now use Ksplice to patch against
the latest Red Hat kernel update, ELSA-2018-1319.

INSTALLING THE UPDATES

We recommend that all users of Ksplice Uptrack running OL 7, RHEL 7,
CentOS 7, and Scientific Linux 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-2018-8897: Denial-of-service in KVM breakpoint handling.

Incorrect stack management of data watchpoints and breakpoints could
allow an unprivileged user to crash the system.


* CVE-2018-1087: KVM guest breakpoint privilege escalation.

Incorrect breakpoint emulation for a KVM guest could allow a local,
unprivileged user to escalate privileges inside the guest.


* CVE-2017-16939: Denial-of-service in IPSEC transform policy netlink dump.

A failure to handle an error case when dumping IPSEC transform
information via netlink can result in a Kernel crash. A local user with
the ability to administer an IPSEC tunnel could use this flaw to cause a
denial-of-service.


* CVE-2018-1068: Privilege escalation when configuring bridge filtering.

Lack of input validation when configuring bridge filtering from a 32 bits
compat syscall could lead to an out-of-bounds write.  Unprivileged users
with the ability to create namespaces could use this flaw to escalate
privileges.


* CVE-2018-1000199: Denial-of-service in hardware breakpoints.

Incorrect validation of a ptrace hardware breakpoint could result in
corrupted kernel state.  A local, unprivileged user could use this flaw
to crash the system or potentially, escalate privileges.

SUPPORT

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