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Bug 1541108

Summary: Allow CRL handling to be configurable for outgoing connections
Product: Red Hat Enterprise Linux 7 Reporter: Nathan Kinder <nkinder>
Component: 389-ds-baseAssignee: mreynolds
Status: CLOSED ERRATA QA Contact: Viktor Ashirov <vashirov>
Severity: urgent Docs Contact:
Priority: urgent    
Version: 7.5CC: ftweedal, lmiksik, mhonek, mkosek, mreynolds, ndehadra, nkinder, rmeggins, spichugi, tbordaz
Target Milestone: rcKeywords: Regression
Target Release: ---   
Hardware: Unspecified   
OS: Unspecified   
Whiteboard:
Fixed In Version: 389-ds-base-1.3.7.5-15 Doc Type: If docs needed, set a value
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2018-04-10 14:25:12 UTC Type: Bug
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Embargoed:

Description Nathan Kinder 2018-02-01 17:37:59 UTC 
Due to a change in the OpenLDAP client libraries (switching from NSS to OpenSSL), the way that CRL checking is handled behaves differently.  In short, it appears that if CRL checking is enabled (which 389-ds-base hardcodes), TLS will not be established if a CRL is not available.  With NSS, this was more tolerant and TLS would be established.  This is manifesting as a regression in IPA for replication connections as detailed here:

  https://bugzilla.redhat.com/show_bug.cgi?id=1486225#c23

I believe that we should allow the LDAP_OPT_X_TLS_CRLCHECK option that we pass into the OpenLDAP libraries to be configurable for outgoing LDAP connections, as the new behavior is not very tolerant and has the potential to break some deployments.
Comment 3 mreynolds 2018-02-01 18:06:00 UTC 
Upstream ticket:
https://pagure.io/389-ds-base/issue/49557
Comment 20 thierry bordaz 2018-02-06 18:25:46 UTC 
Upstream ticket (https://pagure.io/389-ds-base/issue/49557) pushed -> POST
Comment 23 Fraser Tweedale 2018-02-12 02:49:18 UTC 
Thierry thanks for your work testing these changes.
Comment 24 Rob Crittenden 2018-02-13 19:48:57 UTC 
*** Bug 1533497 has been marked as a duplicate of this bug. ***
Comment 25 Simon Pichugin 2018-02-19 17:02:18 UTC 
[root@qeos-21 ds]# py.test -v dirsrvtests/tests/suites/tls/tls_check_crl_test.py
================== test session starts ==================
platform linux -- Python 3.6.3, pytest-3.4.0, py-1.5.2, pluggy-0.6.0 -- /opt/rh/rh-python36/root/usr/bin/python3
cachedir: .pytest_cache
metadata: {'Python': '3.6.3', 'Platform': 'Linux-3.10.0-851.el7.x86_64-x86_64-with-redhat-7.5-Maipo', 'Packages': {'pytest': '3.4.0', 'py': '1.5.2', 'pluggy': '0.6.0'}, 'Plugins': {'metadata': '1.5.1', 'html': '1.16.1'}}
389-ds-base: 1.3.7.5-18.el7
nss: 3.34.0-4.el7
nspr: 4.17.0-1.el7
openldap: 2.4.44-13.el7
svrcore: 4.1.3-2.el7

rootdir: /mnt/tests/rhds/tests/upstream/ds, inifile:
plugins: metadata-1.5.1, html-1.16.1
collected 1 item

dirsrvtests/tests/suites/tls/tls_check_crl_test.py::test_tls_check_crl PASSED              [100%]

================== 1 passed in 19.92 seconds ==================

Marking as verified.
Comment 28 errata-xmlrpc 2018-04-10 14:25:12 UTC 
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/RHBA-2018:0811