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:
When running in FIPS mode only 2048bit and 3072 bit key sizes are allowed, when generating keys above 3072 bits, openssh prints different error message and returns different error code than when generating keys below 2048 bit in size.

Version-Release number of selected component (if applicable):
openssh-6.4p1-7.el7.ppc64

How reproducible:
Always

Steps to Reproduce:
1. Turn FIPS mode on
2. ssh-keygen -b 1024 -t rsa -N '' -f /root/.ssh/id_rsa; echo $?
3. ssh-keygen -b 4096 -t rsa -N '' -f /root/.ssh/id_rsa; echo $?

Actual results:
RSA keys must be at least 2048 bits in FIPS mode
1
rsa_generate_private_key: key generation failed.
255

Expected results:
RSA keys must be either 2048 bits or 3072 bits in FIPS mode
1
RSA keys must be either 2048 bits or 3072 bits in FIPS mode
1

Additional info:

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://rhn.redhat.com/errata/RHSA-2015-0425.html