On 6/2/22 12:57, Ron Yorston wrote:
Today OpenVPN was updated from 2.5.6-1 to 2.5.7-1 and my VPN connection broke. The log says: nm-openvpn[8655]: --cipher is not set. Previous OpenVPN version defaulted to BF-CBC as fallback when cipher negotiation failed in this case. If you need this fallback please add '--data-ciphers-fallback BF-CBC' to your configuration and/or add BF-CBC to --data-ciphers. nm-openvpn[8655]: OpenVPN 2.5.7 x86_64-redhat-linux-gnu [SSL (OpenSSL)] [LZO] [LZ4] [EPOLL] [PKCS11] [MH/PKTINFO] [AEAD] built on May 31 2022 nm-openvpn[8655]: library versions: OpenSSL 3.0.2 15 Mar 2022, LZO 2.10 nm-openvpn[8655]: NOTE: the current --script-security setting may allow this configuration to call user-defined scripts nm-openvpn[8655]: Cipher BF-CBC not supported nm-openvpn[8655]: Exiting due to fatal error 2.5.6-1 says almost exactly the same, apart from the last two lines, and doesn't break. Adding 'cipher=AES-256-GCM' to the NetworkManager keyfile for the VPN got it working again. The advice about 'data-ciphers-fallback' and 'data-ciphers' is bogus because NetworkManager doesn't know about those options.
Happened to me too. Apparently it is a fight between "let's have a default that works" and "let's not weaken security too easily". https://community.openvpn.net/openvpn/wiki/CipherNegotiation Regards. -- Roberto Ragusa mail at robertoragusa.it _______________________________________________ users mailing list -- users@xxxxxxxxxxxxxxxxxxxxxxx To unsubscribe send an email to users-leave@xxxxxxxxxxxxxxxxxxxxxxx Fedora Code of Conduct: https://docs.fedoraproject.org/en-US/project/code-of-conduct/ List Guidelines: https://fedoraproject.org/wiki/Mailing_list_guidelines List Archives: https://lists.fedoraproject.org/archives/list/users@xxxxxxxxxxxxxxxxxxxxxxx Do not reply to spam on the list, report it: https://pagure.io/fedora-infrastructure
