Note: This bug is displayed in read-only format because the product is no longer active in Red Hat Bugzilla.

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:
OpenSSL client doesn't reject 1024 bit DH parameters as too weak when the system is configured with LEGACY or DEFAULT policy

Version-Release number of selected component (if applicable):
openssl-3.0.0-0.beta1.4.el9.x86_64

How reproducible:
always

Steps to Reproduce:
1. Set up a server that uses DHE ciphersuites and 1024 bit DH parameters
2. connect to it with openssl s_client

Actual results:
Connection successful

Expected results:
Connection aborted with error message:
00FCCEC7337F0000:error:0A00018A:SSL routines:tls_process_ske_dhe:dh key too small:ssl/statem/statem_clnt.c:2088:

Additional info:
regression since -alpha16

Server setup:

openssl dhparam 1024 -out dhparam.pem
openssl req -x509 -newkey rsa -keyout server.pem -out cert.pem -subj /CN=localhost -nodes -batch
openssl s_server -cert cert.pem -key server.pem -dhparam dhparam.pem -cipher DHE:@SECLEVEL=1 -www -no_tls1_3

Client setup:
openssl s_client -no_tls1_3 -CAfile cert.pem

Client output:
000003FF80472710:error:0A00018A:SSL routines:tls_process_ske_dhe:dh key too small:ssl/statem/statem_clnt.c:2085:

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 (new packages: openssl), 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-2022:3900