PostgreSQL was updated to 9.6.9 fixing bugs and security issues:

Release notes:

- https://www.postgresql.org/about/news/1851/
- https://www.postgresql.org/docs/current/static/release-9-6-9.html

A dump/restore is not required for those running 9.6.X.
However, if you use the adminpack extension, you should update
it as per the first changelog entry below.
Also, if the function marking mistakes mentioned in the second
and third changelog entries below affect you, you will want to
take steps to correct your database catalogs.

Security issue fixed:

- CVE-2018-1115: Remove public execute privilege
from contrib/adminpack's pg_logfile_rotate() function
pg_logfile_rotate() is a deprecated wrapper for the core
function pg_rotate_logfile(). When that function was changed
to rely on SQL privileges for access control rather than a
hard-coded superuser check, pg_logfile_rotate() should have
been updated as well, but the need for this was missed. Hence,
if adminpack is installed, any user could request a logfile
rotation, creating a minor security issue.
After installing this update, administrators should update
adminpack by performing ALTER EXTENSION adminpack UPDATE in
each database in which adminpack is installed. (bsc#1091610)

This update was imported from the SUSE:SLE-12:Update update project.