This was newly introduced in OpenSSH 9.9, hence our custom configurations for both SSH server and client need to be updated.
Signed-off-by: Peter Müller peter.mueller@ipfire.org --- config/ssh/ssh_config | 2 +- config/ssh/sshd_config | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-)
diff --git a/config/ssh/ssh_config b/config/ssh/ssh_config index 85c069dda..5a9ad85c5 100644 --- a/config/ssh/ssh_config +++ b/config/ssh/ssh_config @@ -9,7 +9,7 @@ Host * UseRoaming no
# Only use secure crypto algorithms - KexAlgorithms sntrup761x25519-sha512@openssh.com,curve25519-sha256,curve25519-sha256@libssh.org,diffie-hellman-group-exchange-sha256 + KexAlgorithms sntrup761x25519-sha512,mlkem768x25519-sha256,curve25519-sha256,curve25519-sha256@libssh.org,diffie-hellman-group-exchange-sha256 Ciphers chacha20-poly1305@openssh.com,aes256-gcm@openssh.com,aes128-gcm@openssh.com,aes256-ctr,aes192-ctr,aes128-ctr MACs hmac-sha2-512-etm@openssh.com,hmac-sha2-256-etm@openssh.com,umac-128-etm@openssh.com,hmac-sha2-512,hmac-sha2-256,umac-128@openssh.com
diff --git a/config/ssh/sshd_config b/config/ssh/sshd_config index 76c9b3eb1..9229b6518 100644 --- a/config/ssh/sshd_config +++ b/config/ssh/sshd_config @@ -20,7 +20,7 @@ LoginGraceTime 30s MaxStartups 5
# Only allow safe crypto algorithms -KexAlgorithms sntrup761x25519-sha512@openssh.com,curve25519-sha256,curve25519-sha256@libssh.org,diffie-hellman-group-exchange-sha256 +KexAlgorithms sntrup761x25519-sha512,mlkem768x25519-sha256,curve25519-sha256,curve25519-sha256@libssh.org,diffie-hellman-group-exchange-sha256 Ciphers chacha20-poly1305@openssh.com,aes256-gcm@openssh.com,aes128-gcm@openssh.com,aes256-ctr,aes192-ctr,aes128-ctr MACs hmac-sha2-512-etm@openssh.com,hmac-sha2-256-etm@openssh.com,umac-128-etm@openssh.com,hmac-sha2-512,hmac-sha2-256,umac-128@openssh.com