[Ksplice][EL7-Updates] New Ksplice updates for OL 7, RHEL 7, CentOS 7, and Scientific Linux 7 (RHSA-2019:0163)

[Gregory Herrero]

Synopsis: RHSA-2019:0163 can now be patched using Ksplice
CVEs: CVE-2018-18397 CVE-2018-18559

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 Security Advisory, RHSA-2019:0163.

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-2018-18559: Denial-of-service when binding a packet on a socket while a notification is raised.

A race condition when binding a packet on a socket while a notification
is raised on this socket could lead to a kernel assert. A local attacker
could use this flaw to cause a denial-of-service.


* CVE-2018-18397: Permission bypass when using userfaultd to write temp or hugetlb filesystem files.

Missing checks in userfaultd could let a local attacker write into
read-only files residing in a hugetlb or a temp filesystem.

SUPPORT

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