RHEL Engineering is moving the tracking of its product development work on RHEL 6 through RHEL 9 to Red Hat Jira (issues.redhat.com). If you're a Red Hat customer, please continue to file support cases via the Red Hat customer portal. If you're not, please head to the "RHEL project" in Red Hat Jira and file new tickets here. Individual Bugzilla bugs in the statuses "NEW", "ASSIGNED", and "POST" are being migrated throughout September 2023. Bugs of Red Hat partners with an assigned Engineering Partner Manager (EPM) are migrated in late September as per pre-agreed dates. Bugs against components "kernel", "kernel-rt", and "kpatch" are only migrated if still in "NEW" or "ASSIGNED". If you cannot log in to RH Jira, please consult article #7032570. That failing, please send an e-mail to the RH Jira admins at rh-issues@redhat.com to troubleshoot your issue as a user management inquiry. The email creates a ServiceNow ticket with Red Hat. Individual Bugzilla bugs that are migrated will be moved to status "CLOSED", resolution "MIGRATED", and set with "MigratedToJIRA" in "Keywords". The link to the successor Jira issue will be found under "Links", have a little "two-footprint" icon next to it, and direct you to the "RHEL project" in Red Hat Jira (issue links are of type "https://issues.redhat.com/browse/RHEL-XXXX", where "X" is a digit). This same link will be available in a blue banner at the top of the page informing you that that bug has been migrated.

Description of problem:
`stunnel -options` lists options that can't be used in configuration file

Version-Release number of selected component (if applicable):
stunnel-5.48-5.el8.x86_64

How reproducible:
always

Steps to Reproduce:
1. stunnel -options 2>&1 | grep NETSCAPE_REUSE_CIPHER_CHANGE_BUG
2. configure stunnel with the above option
3.

Actual results:
the option is listed, server fails with following error:
[!] /tmp/tmp.jmI72ywq7F/stunnel.conf:12: "options=NETSCAPE_REUSE_CIPHER_CHANGE_BUG": Illegal TLS option

Expected results:
option not listed in command output

Additional info:
I haven't checked other options, but stunnel -options should only list options that are actually usable

This issue will be fixed with rebase of stunnel to latest upstream version (5.56). The rebase will be done with https://bugzilla.redhat.com/show_bug.cgi?id=1808365.
I have tested this case on f31 (with stunnel 5.56) using downstream testcase stunnel/Sanity/smoke-test by modifying the server.conf to include the parameter 
"options = NETSCAPE_REUSE_CIPHER_CHANGE_BUG". The test case is found to be passing.

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 (stunnel bug fix and enhancement update), 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-2020:4440