Build tested:
389-ds-base-1.3.6.1-25.el7_4.x86_64

CoS test suite from acceptance tests passes 100% without a crash.

CoS scale stress test passes:

===================================================================== test session starts =====================================================================
platform linux -- Python 3.6.3, pytest-3.3.2, py-1.5.2, pluggy-0.6.0 -- /opt/rh/rh-python36/root/usr/bin/python3
cachedir: .cache
metadata: {'Python': '3.6.3', 'Platform': 'Linux-3.10.0-693.el7.x86_64-x86_64-with-redhat-7.4-Maipo', 'Packages': {'pytest': '3.3.2', 'py': '1.5.2', 'pluggy': '0.6.0'}, 'Plugins': {'metadata': '1.5.1', 'html': '1.16.1'}}
389-ds-base: 1.3.6.1-25.el7_4
nss: 3.28.4-8.el7
nspr: 4.13.1-1.0.el7_3
openldap: 2.4.44-5.el7
svrcore: 4.1.3-2.el7

rootdir: /export/tests, inifile:
plugins: metadata-1.5.1, html-1.16.1
collected 1 item                                                                                                                                              

stress/cos/cos_scale_template_test.py::test_indirect_template_scale PASSED                                                                              [100%]

------------------------------------------------ generated xml file: /mnt/tests/rhds/tests/upstream/report.xml ------------------------------------------------
----------------------------------------------- generated html file: /mnt/tests/rhds/tests/upstream/report.html -----------------------------------------------
================================================================== 1 passed in 46.32 seconds ==================================================================

Marking as VERIFIED.

Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.

For information on the advisory, and where to find the updated
files, follow the link below.

If the solution does not work for you, open a new bug report.

https://access.redhat.com/errata/RHSA-2018:0163