The browsers will require SECLEVEL=2 from April 2020, the change in libraries has already landed.
You can override this via command-line, a system config file, or a local config file + environment variable pointing to it. On Ubuntu 20.04 LTS: man SSL_CTX_get_security_level.3ssl does have: -- Level 2 On Ubuntu, TLS versions below 1.2 are not permitted. NOTES The default security level can be configured when OpenSSL is compiled by setting -DOPENSSL_TLS_SECURITY_LEVEL=level. On Ubuntu, 2 is used. -- In addition to having TLSv1.2 min, DTLSv1.2 min, bigger keys ie 2048 bit RSA, we are still to land requirement to reject SHA1 signatures on certs. This is an intentional change. -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to openssl in Ubuntu. https://bugs.launchpad.net/bugs/1864689 Title: openssl in 20.04 can't connect to site that was fine in 19.10 and is fine in Chrome and Firefox Status in openssl package in Ubuntu: New Bug description: openssl in Ubuntu 20.04 (focal) refuses to connect to a web site that openssl in Ubuntu 19.10 (eoan), Chrome, and Firefox are all happy to connect to. Reproduce with: `curl -v https://www.toodledo.com/' or: `openssl s_client -connect www.toodledo.com:443` or: `python3 -c 'import requests; requests.get("https://www.toodledo.com/")'` or: `wget https://www.toodledo.com/` These worked in Ubuntu 19.10 and don't work in 20.04. I've tried all sorts of things to debug this further and I've just run into walls. I hope someone who understands more about this stuff will be able to figure it out. ProblemType: Bug DistroRelease: Ubuntu 20.04 Package: openssl 1.1.1d-2ubuntu3 ProcVersionSignature: Ubuntu 5.4.0-14.17-generic 5.4.18 Uname: Linux 5.4.0-14-generic x86_64 ApportVersion: 2.20.11-0ubuntu18 Architecture: amd64 CurrentDesktop: ubuntu:GNOME Date: Tue Feb 25 13:01:22 2020 InstallationDate: Installed on 2019-08-16 (192 days ago) InstallationMedia: Ubuntu 19.04 "Disco Dingo" - Release amd64 (20190416) SourcePackage: openssl UpgradeStatus: Upgraded to focal on 2020-01-31 (25 days ago) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/openssl/+bug/1864689/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp