sshd 3.1 dumps core when client connects -- Solaris 9 gcc 3.1

[Scott Packard]

Team -
I'm running Solaris 9 and gcc 3.1 on a Blade 1000, named jefferson.
I built OpenSSH_3.3.  I can use the client to connect out,
but cannot use the client to connect to localhost (nor can
I use a Linux box with OpenSSH_3.2.3 to connect to it).
I *can* use F-Secure 3.0.0 on a Windoze box to get into it.
I've tried configurations both with and without privsep enabled
but get the same results.


This is the trace when connecting using the OpenSSH client:
jefferson# /usr/local/sbin/sshd -d -d -d
debug1: sshd version OpenSSH_3.3
debug3: Not a RSA1 key file /usr/local/etc/ssh_host_rsa_key.
debug1: read PEM private key done: type RSA
debug1: private host key: #0 type 1 RSA
debug3: Not a RSA1 key file /usr/local/etc/ssh_host_dsa_key.
debug1: read PEM private key done: type DSA
debug1: private host key: #1 type 2 DSA
debug1: Bind to port 22 on ::.
Server listening on :: port 22.
debug1: Bind to port 22 on 0.0.0.0.
Server listening on 0.0.0.0 port 22.
debug1: Server will not fork when running in debugging mode.
Connection from 127.0.0.1 port 33372
debug1: Client protocol version 2.0; client software version OpenSSH_3.3
debug1: match: OpenSSH_3.3 pat OpenSSH*
Enabling compatibility mode for protocol 2.0
debug1: Local version string SSH-2.0-OpenSSH_3.3
debug3: privsep user:group 60003:50006
debug1: list_hostkey_types: ssh-rsa,ssh-dss
debug1: SSH2_MSG_KEXINIT sent
debug1: SSH2_MSG_KEXINIT received
debug2: kex_parse_kexinit: diffie-hellman-group-exchange-sha1,diffie-hellman-group1-sha1
debug2: kex_parse_kexinit: ssh-rsa,ssh-dss
debug2: kex_parse_kexinit: aes128-cbc,3des-cbc,blowfish-cbc,cast128-cbc,arcfour,aes192-cbc,aes256-cbc,rijndael-cbc at lysator.liu.se
debug2: kex_parse_kexinit: aes128-cbc,3des-cbc,blowfish-cbc,cast128-cbc,arcfour,aes192-cbc,aes256-cbc,rijndael-cbc at lysator.liu.se
debug2: kex_parse_kexinit: hmac-md5,hmac-sha1,hmac-ripemd160,hmac-ripemd160 at openssh.com,hmac-sha1-96,hmac-md5-96
debug2: kex_parse_kexinit: hmac-md5,hmac-sha1,hmac-ripemd160,hmac-ripemd160 at openssh.com,hmac-sha1-96,hmac-md5-96
debug2: kex_parse_kexinit: none,zlib
debug2: kex_parse_kexinit: none,zlib
debug2: kex_parse_kexinit: 
debug2: kex_parse_kexinit: 
debug2: kex_parse_kexinit: first_kex_follows 0 
debug2: kex_parse_kexinit: reserved 0 
debug2: kex_parse_kexinit: diffie-hellman-group-exchange-sha1,diffie-hellman-group1-sha1
debug2: kex_parse_kexinit: ssh-rsa,ssh-dss
debug2: kex_parse_kexinit: aes128-cbc,3des-cbc,blowfish-cbc,cast128-cbc,arcfour,aes192-cbc,aes256-cbc,rijndael-cbc at lysator.liu.se
debug2: kex_parse_kexinit: aes128-cbc,3des-cbc,blowfish-cbc,cast128-cbc,arcfour,aes192-cbc,aes256-cbc,rijndael-cbc at lysator.liu.se
debug2: kex_parse_kexinit: hmac-md5,hmac-sha1,hmac-ripemd160,hmac-ripemd160 at openssh.com,hmac-sha1-96,hmac-md5-96
debug2: kex_parse_kexinit: hmac-md5,hmac-sha1,hmac-ripemd160,hmac-ripemd160 at openssh.com,hmac-sha1-96,hmac-md5-96
debug2: kex_parse_kexinit: none
debug2: kex_parse_kexinit: none
debug2: kex_parse_kexinit: 
debug2: kex_parse_kexinit: 
debug2: kex_parse_kexinit: first_kex_follows 0 
debug2: kex_parse_kexinit: reserved 0 
debug2: mac_init: found hmac-md5
debug1: kex: client->server aes128-cbc hmac-md5 none
debug2: mac_init: found hmac-md5
debug1: kex: server->client aes128-cbc hmac-md5 none
debug1: SSH2_MSG_KEX_DH_GEX_REQUEST received
debug3: mm_request_send entering: type 0
debug3: mm_choose_dh: waiting for MONITOR_ANS_MODULI
debug3: mm_request_receive_expect entering: type 1
debug3: mm_request_receive entering
debug2: Network child is on pid 27403
debug3: preauth child monitor started
debug3: mm_request_receive entering
debug3: monitor_read: checking request 0
debug3: mm_answer_moduli: got parameters: 1024 2048 8192
debug1: Calling cleanup 0x4ab78(0x0)
Segmentation Fault(coredump)


** End trace using OpenSSH client **


Here is a trace when connecting with F-Secure SSH 3.0.0:

jefferson# /usr/local/sbin/sshd -d -d -d
debug1: sshd version OpenSSH_3.3
debug3: Not a RSA1 key file /usr/local/etc/ssh_host_rsa_key.
debug1: read PEM private key done: type RSA
debug1: private host key: #0 type 1 RSA
debug3: Not a RSA1 key file /usr/local/etc/ssh_host_dsa_key.
debug1: read PEM private key done: type DSA
debug1: private host key: #1 type 2 DSA
debug1: Bind to port 22 on ::.
Server listening on :: port 22.
debug1: Bind to port 22 on 0.0.0.0.
Server listening on 0.0.0.0 port 22.
debug1: Server will not fork when running in debugging mode.
Connection from 137.79.12.130 port 1100
debug1: Client protocol version 1.99; client software version 3.0.0 SSH Secure
Shell for Windows
debug1: match: 3.0.0 SSH Secure Shell for Windows pat 3.0.*
Enabling compatibility mode for protocol 2.0
debug1: Local version string SSH-2.0-OpenSSH_3.3
debug2: Network child is on pid 27409
debug3: preauth child monitor started
debug3: mm_request_receive entering
debug3: privsep user:group 60003:50006
debug1: list_hostkey_types: ssh-rsa,ssh-dss
debug1: SSH2_MSG_KEXINIT sent
debug1: SSH2_MSG_KEXINIT received
debug2: kex_parse_kexinit: diffie-hellman-group-exchange-sha1,diffie-hellman-group1-sha1
debug2: kex_parse_kexinit: ssh-rsa,ssh-dss
debug2: kex_parse_kexinit: aes128-cbc,3des-cbc,blowfish-cbc,cast128-cbc,arcfour,aes192-cbc,aes256-cbc,rijndael-cbc at lysator.liu.se
debug2: kex_parse_kexinit: aes128-cbc,3des-cbc,blowfish-cbc,cast128-cbc,arcfour,aes192-cbc,aes256-cbc,rijndael-cbc at lysator.liu.se
debug2: kex_parse_kexinit: hmac-md5,hmac-sha1,hmac-ripemd160,hmac-ripemd160 at openssh.com,hmac-sha1-96,hmac-md5-96
debug2: kex_parse_kexinit: hmac-md5,hmac-sha1,hmac-ripemd160,hmac-ripemd160 at openssh.com,hmac-sha1-96,hmac-md5-96
debug2: kex_parse_kexinit: none,zlib
debug2: kex_parse_kexinit: none,zlib
debug2: kex_parse_kexinit: 
debug2: kex_parse_kexinit: 
debug2: kex_parse_kexinit: first_kex_follows 0 
debug2: kex_parse_kexinit: reserved 0 
debug2: kex_parse_kexinit: diffie-hellman-group1-sha1
debug2: kex_parse_kexinit: ssh-rsa,ssh-dss,x509v3-sign-dss,x509v3-sign-rsa
debug2: kex_parse_kexinit: aes128-cbc,3des-cbc,blowfish-cbc,twofish-cbc,arcfour
debug2: kex_parse_kexinit: aes128-cbc,3des-cbc,blowfish-cbc,twofish-cbc,arcfour
debug2: kex_parse_kexinit: hmac-md5,hmac-sha1
debug2: kex_parse_kexinit: hmac-md5,hmac-sha1
debug2: kex_parse_kexinit: none
debug2: kex_parse_kexinit: none
debug2: kex_parse_kexinit: 
debug2: kex_parse_kexinit: 
debug2: kex_parse_kexinit: first_kex_follows 0 
debug2: kex_parse_kexinit: reserved 0 
debug2: mac_init: found hmac-md5
debug1: kex: client->server aes128-cbc hmac-md5 none
debug2: mac_init: found hmac-md5
debug1: kex: server->client aes128-cbc hmac-md5 none
debug1: dh_gen_key: priv key bits set: 141/256
debug1: bits set: 501/1024
debug1: expecting SSH2_MSG_KEXDH_INIT
debug1: bits set: 513/1024
debug3: mm_key_sign entering
debug3: mm_request_send entering: type 4
debug3: mm_key_sign: waiting for MONITOR_ANS_SIGN
debug3: mm_request_receive_expect entering: type 5
debug3: mm_request_receive entering
debug3: monitor_read: checking request 4
debug3: mm_answer_sign
debug3: mm_answer_sign: signature 116990(143)
debug3: mm_request_send entering: type 5
debug2: monitor_read: 4 used once, disabling now
debug3: mm_request_receive entering
debug1: kex_derive_keys
debug1: newkeys: mode 1
debug1: SSH2_MSG_NEWKEYS sent
debug1: waiting for SSH2_MSG_NEWKEYS
debug1: newkeys: mode 0
debug1: SSH2_MSG_NEWKEYS received
debug1: KEX done
debug1: userauth-request for user sproot service ssh-connection method none
debug1: attempt 0 failures 0
debug3: mm_getpwnamallow entering
debug3: mm_request_send entering: type 6
debug3: mm_getpwnamallow: waiting for MONITOR_ANS_PWNAM
debug3: mm_request_receive_expect entering: type 7
debug3: mm_request_receive entering
debug3: monitor_read: checking request 6
debug3: mm_answer_pwnamallow
debug3: mm_answer_pwnamallow: sending MONITOR_ANS_PWNAM: 1
debug3: mm_request_send entering: type 7
debug2: monitor_read: 6 used once, disabling now
debug3: mm_request_receive entering
debug2: input_userauth_request: setting up authctxt for sproot
debug3: mm_start_pam entering
debug3: mm_request_send entering: type 37
debug3: mm_inform_authserv entering
debug3: mm_request_send entering: type 3
debug2: input_userauth_request: try method none
debug3: mm_auth2_read_banner entering
debug3: mm_request_send entering: type 8
debug3: mm_request_receive_expect entering: type 9
debug3: mm_request_receive entering
debug3: monitor_read: checking request 37
debug1: Starting up PAM with username "sproot"
debug3: Trying to reverse map address 137.79.12.130.
debug1: PAM setting rhost to "cism-backup.jpl.nasa.gov"
debug2: monitor_read: 37 used once, disabling now
debug3: mm_request_receive entering
debug3: monitor_read: checking request 3
debug3: mm_answer_authserv: service=ssh-connection, style=
debug2: monitor_read: 3 used once, disabling now
debug3: mm_request_receive entering
debug3: monitor_read: checking request 8
debug3: mm_request_send entering: type 9
debug2: monitor_read: 8 used once, disabling now
debug3: mm_request_receive entering
debug1: userauth_banner: sent
debug3: mm_auth_password entering
debug3: mm_request_send entering: type 10
debug3: mm_auth_password: waiting for MONITOR_ANS_AUTHPASSWORD
debug3: mm_request_receive_expect entering: type 11
debug3: mm_request_receive entering
debug3: monitor_read: checking request 10
debug1: PAM Password authentication for "sproot" failed[9]: Authentication
failed
debug3: mm_answer_authpassword: sending result 0
debug3: mm_request_send entering: type 11
Failed none for sproot from 137.79.12.130 port 1100 ssh2
debug3: mm_request_receive entering
debug3: mm_auth_password: user not authenticated
Failed none for sproot from 137.79.12.130 port 1100 ssh2
debug1: userauth-request for user sproot service ssh-connection method password
debug1: attempt 1 failures 1
debug2: input_userauth_request: try method password
debug3: mm_auth_password entering

... and on it goes, eventually succeeding.

** End trace using F-Secure SSH 3.0.0 on Windows box.