Package: libssh Version: 0.9.4-1 Severity: important As of openssh 1:8.4p1-1, libssh's autopkgtests have started failing like this (https://ci.debian.net/data/autopkgtest/testing/amd64/libs/libssh/8034692/log.gz):
autopkgtest [20:09:56]: test libssh-server: [----------------------- ====== password authentication ====== [2020/11/08 20:09:57.408506, 2] ssh_pki_import_privkey_base64: Trying to decode privkey passphrase=false [2020/11/08 20:09:57.418880, 2] ssh_server_connection_callback: SSH client banner: SSH-2.0-OpenSSH_8.4p1 Debian-2 [2020/11/08 20:09:57.418944, 2] ssh_analyze_banner: Analyzing banner: SSH-2.0-OpenSSH_8.4p1 Debian-2 [2020/11/08 20:09:57.418979, 2] ssh_analyze_banner: We are talking to an OpenSSH client version: 8.4 (80400) [2020/11/08 20:09:57.419137, 2] ssh_kex_select_methods: Negotiated curve25519-sha256,rsa-sha2-512,aes128-ctr,aes128-ctr,[email protected],[email protected],none,none,, [2020/11/08 20:09:57.426721, 2] ssh_packet_server_curve25519_init: SSH_MSG_KEX_ECDH_REPLY sent [2020/11/08 20:09:57.426846, 2] ssh_init_rekey_state: Set rekey after 4294967296 blocks [2020/11/08 20:09:57.426880, 2] ssh_init_rekey_state: Set rekey after 4294967296 blocks [2020/11/08 20:09:57.426904, 2] ssh_packet_server_curve25519_init: SSH_MSG_NEWKEYS sent Warning: Permanently added '[localhost]:1234' (RSA) to the list of known hosts. [2020/11/08 20:09:57.429653, 2] ssh_packet_newkeys: Received SSH_MSG_NEWKEYS ** (mock-sshd:1246): WARNING **: 20:09:57.429: authenticate_callback: round 0, message type -1 ** (mock-sshd:1246): WARNING **: 20:09:57.429: authenticate_callback: round 0, message type -1, deny, ret 1 ** (mock-sshd:1246): WARNING **: 20:09:57.470: authenticate_callback: round 0, message type 1 ** (mock-sshd:1246): WARNING **: 20:09:57.471: authenticate_callback: round 0, message type 1, deny, ret 1 ** (mock-sshd:1246): WARNING **: 20:09:57.471: authenticate_callback: round 0, message type 16 ** (mock-sshd:1246): WARNING **: 20:09:57.471: auth_interactive begin: round 0 [2020/11/08 20:09:57.471527, 2] ssh_message_auth_interactive_request:Test Interactive Warning: Got a keyboard-interactive response but it seems we didn't send the request. Password ** (mock-sshd:1246): WARNING **: 20:09:57.471: auth_interactive round 1, ret 1 ** (mock-sshd:1246): WARNING **: 20:09:57.471: authenticate_callback: round 1, message type 16, more, ret 0 ** (mock-sshd:1246): WARNING **: 20:09:57.471: authenticate_callback: round 1, message type 16 ** (mock-sshd:1246): WARNING **: 20:09:57.471: auth_interactive begin: round 1 ** (mock-sshd:1246): WARNING **: 20:09:57.471: auth_interactive round 1, ret 2 ** (mock-sshd:1246): WARNING **: 20:09:57.471: authenticate_callback: round 1, message type 16, deny, ret 1 ** (mock-sshd:1246): WARNING **: 20:09:57.471: authenticate_callback: round 1, message type 16 ** (mock-sshd:1246): WARNING **: 20:09:57.471: auth_interactive begin: round 1 ** (mock-sshd:1246): WARNING **: 20:09:57.471: auth_interactive round 1, ret 2 ** (mock-sshd:1246): WARNING **: 20:09:57.471: authenticate_callback: round 1, message type 16, deny, ret 1 ** (mock-sshd:1246): WARNING **: 20:09:57.472: authenticate_callback: round 1, message type 16 ** (mock-sshd:1246): WARNING **: 20:09:57.472: auth_interactive begin: round 1 ** (mock-sshd:1246): WARNING **: 20:09:57.472: auth_interactive round 1, ret 2 ** (mock-sshd:1246): WARNING **: 20:09:57.472: authenticate_callback: round 1, message type 16, deny, ret 1 ** (mock-sshd:1246): WARNING **: 20:09:57.472: authenticate_callback: round 1, message type 2 ** (mock-sshd:1246): WARNING **: 20:09:57.472: authenticate_callback: round 1, message type 2, deny, ret 1 Permission denied, please try again. ** (mock-sshd:1246): WARNING **: 20:09:57.472: authenticate_callback: round 1, message type 2 ** (mock-sshd:1246): WARNING **: 20:09:57.472: authenticate_callback: round 1, message type 2, deny, ret 1 Permission denied, please try again. ** (mock-sshd:1246): WARNING **: 20:09:57.472: authenticate_callback: round 1, message type 2 ** (mock-sshd:1246): WARNING **: 20:09:57.472: authenticate_callback: round 1, message type 2, deny, ret 1 joe@localhost: Permission denied (publickey,keyboard-interactive,password). [2020/11/08 20:09:57.473350, 1] ssh_socket_exception_callback: Socket exception callback: 1 (0) [2020/11/08 20:09:57.473374, 1] ssh_socket_exception_callback: Socket error: disconnected autopkgtest [20:09:57]: test libssh-server: -----------------------] autopkgtest [20:09:57]: test libssh-server: - - - - - - - - - - results - - - - - - - - - - libssh-server FAIL non-zero exit status 253 I haven't been doing a good job so far at working out what's going on here and whether it represents a legitimate regression in openssh or a bug in libssh. I'll keep trying, but does anything jump out at you? Thanks, -- Colin Watson (he/him) [[email protected]]

