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(In reply to Patrik Kis from comment #3)
> Another issue discovered that was caused by updated nss is with the default
> cipher suites. The following suites are missing from client hello sent:
>
> -TLS_AES_128_GCM_SHA256
> -TLS_CHACHA20_POLY1305_SHA256
> -TLS_AES_256_GCM_SHA384
Those are expected to be missing: those are TLSv1.3 cipihersuites and we are not enabling TLSv1.3 in NSS in RHEL just yet - tlsv1.3 is not yet finished.
> -TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305_SHA256
> -TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305_SHA256
> -TLS_DHE_RSA_WITH_CHACHA20_POLY1305_SHA256
Note that openldap will need sff rating for those ciphers - those are 256 bit ciphers.
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-2017:1852
Description of problem: Openldap does not ask for TLS_AES.*GCM cipher suites in client hello while the latest nss supports these suites. Version-Release number of selected component (if applicable): openldap-2.4.44-1.el7.x86_64 nss-3.28.3-3.el7.x86_64 How reproducible: always Steps to Reproduce: openssl req -x509 -newkey rsa -keyout localhost.key -out localhost.crt -nodes -batch tshark -i lo -f "port 4433" -o 'ssl.desegment_ssl_records:TRUE' -V -d tcp.port==4433,ssl &>capture.txt & openssl s_server -accept 4433 -key localhost.key -cert localhost.crt -www 2> /dev/null > /dev/null & ldapsearch -d -1 -H ldaps://localhost:4433/ # kill the s_server and tshark and check the results Actual results: # grep TLS_AES.*GCM capture.txt Expected results: # grep TLS_AES.*GCM capture.txt TLS_AES_128_GCM_SHA256 TLS_AES_256_GCM_SHA384 Additional info: The latest nss-3.28.3-3.el7 supports these suites: /usr/lib64/nss/unsupported-tools/listsuites |grep -v 'suites:' | sed ':a;/:$/{N;s/\\n//;ba}' | grep -v SSL2 |grep TLS_AES.*GCM TLS_AES_128_GCM_SHA256: TLS_AES_256_GCM_SHA384: