SSH problem in R14B

Gene Diveglia <>
Wed Sep 15 23:37:56 CEST 2010


Hi, it appears something has broken with SSH key exchange in R14B.  None of my ssh based CLI are working in R14B, but were previously working in R14A immediately prior to upgrading.  I can replicate the problem easily using [otp_src]/lib/ssh/examples/ssh_sample_cli.erl.  This sample program works with R14A under OS X 10.6.4 x86, but will fail if run under R14B.  The ssh client used in both cases was also on OS X 10.6.4 and was used with defaults other than the port number.  Standard ssh host key files which are functional under the OS were used in both cases.  I also tried a set of host key files generated with a different version of ssh-keygen under linux.  The error report under R14B follows.

Kind regards,

-Gene

=ERROR REPORT==== 15-Sep-2010::17:18:48 ===
** State machine <0.55.0> terminating 
** Last message in was {tcp,#Port<0.1003>,
                            <<0,0,0,140,6,30,0,0,0,128,65,149,33,196,247,233,
                              21,88,218,104,244,10,153,132,125,40,71,44,131,
                              253,22,245,12,59,92,79,134,177,95,51,154,41,176,
                              243,232,208,168,184,12,181,124,38,62,214,81,115,
                              50,11,63,233,1,35,154,219,53,185,15,122,237,207,
                              92,254,52,163,183,160,234,190,135,187,237,54,76,
                              129,219,210,144,186,203,125,92,60,144,43,145,
                              252,215,173,236,140,234,156,165,21,133,116,117,
                              100,130,233,22,62,184,117,253,60,161,185,80,36,
                              18,166,97,155,71,133,192,82,143,61,176,78,177,
                              99,138,116,239,183,0,0,0,0,0,0>>}
** When State == key_exchange
**      Data  == {state,tcp,gen_tcp,tcp_closed,
                     {ssh,server,
                         {undefined,{{0,0,0,0,0,65535,32512,1},61612}},
                         {2,0},
                         {2,0},
                         "SSH-2.0-OpenSSH_5.2","SSH-2.0-Erlang",
                         <<20,12,57,149,244,18,127,223,192,251,128,85,91,196,
                           128,29,110,0,0,0,126,100,105,102,102,105,101,45,104,
                           101,108,108,109,97,110,45,103,114,111,117,112,45,
                           101,120,99,104,97,110,103,101,45,115,104,97,50,53,
                           54,44,100,105,102,102,105,101,45,104,101,108,108,
                           109,97,110,45,103,114,111,117,112,45,101,120,99,104,
                           97,110,103,101,45,115,104,97,49,44,100,105,102,102,
                           105,101,45,104,101,108,108,109,97,110,45,103,114,
                           111,117,112,49,52,45,115,104,97,49,44,100,105,102,
                           102,105,101,45,104,101,108,108,109,97,110,45,103,
                           114,111,117,112,49,45,115,104,97,49,0,0,0,15,115,
                           115,104,45,114,115,97,44,115,115,104,45,100,115,115,
                           0,0,0,157,97,101,115,49,50,56,45,99,116,114,44,97,
                           101,115,49,57,50,45,99,116,114,44,97,101,115,50,53,
                           54,45,99,116,114,44,97,114,99,102,111,117,114,50,53,
                           54,44,97,114,99,102,111,117,114,49,50,56,44,97,101,
                           115,49,50,56,45,99,98,99,44,51,100,101,115,45,99,98,
                           99,44,98,108,111,119,102,105,115,104,45,99,98,99,44,
                           99,97,115,116,49,50,56,45,99,98,99,44,97,101,115,49,
                           57,50,45,99,98,99,44,97,101,115,50,53,54,45,99,98,
                           99,44,97,114,99,102,111,117,114,44,114,105,106,110,
                           100,97,101,108,45,99,98,99,64,108,121,115,97,116,
                           111,114,46,108,105,117,46,115,101,0,0,0,157,97,101,
                           115,49,50,56,45,99,116,114,44,97,101,115,49,57,50,
                           45,99,116,114,44,97,101,115,50,53,54,45,99,116,114,
                           44,97,114,99,102,111,117,114,50,53,54,44,97,114,99,
                           102,111,117,114,49,50,56,44,97,101,115,49,50,56,45,
                           99,98,99,44,51,100,101,115,45,99,98,99,44,98,108,
                           111,119,102,105,115,104,45,99,98,99,44,99,97,115,
                           116,49,50,56,45,99,98,99,44,97,101,115,49,57,50,45,
                           99,98,99,44,97,101,115,50,53,54,45,99,98,99,44,97,
                           114,99,102,111,117,114,44,114,105,106,110,100,97,
                           101,108,45,99,98,99,64,108,121,115,97,116,111,114,
                           46,108,105,117,46,115,101,0,0,0,105,104,109,97,99,
                           45,109,100,53,44,104,109,97,99,45,115,104,97,49,44,
                           117,109,97,99,45,54,52,64,111,112,101,110,115,115,
                           104,46,99,111,109,44,104,109,97,99,45,114,105,112,
                           101,109,100,49,54,48,44,104,109,97,99,45,114,105,
                           112,101,109,100,49,54,48,64,111,112,101,110,115,115,
                           104,46,99,111,109,44,104,109,97,99,45,115,104,97,49,
                           45,57,54,44,104,109,97,99,45,109,100,53,45,57,54,0,
                           0,0,105,104,109,97,99,45,109,100,53,44,104,109,97,
                           99,45,115,104,97,49,44,117,109,97,99,45,54,52,64,
                           111,112,101,110,115,115,104,46,99,111,109,44,104,
                           109,97,99,45,114,105,112,101,109,100,49,54,48,44,
                           104,109,97,99,45,114,105,112,101,109,100,49,54,48,
                           64,111,112,101,110,115,115,104,46,99,111,109,44,104,
                           109,97,99,45,115,104,97,49,45,57,54,44,104,109,97,
                           99,45,109,100,53,45,57,54,0,0,0,26,110,111,110,101,
                           44,122,108,105,98,64,111,112,101,110,115,115,104,46,
                           99,111,109,44,122,108,105,98,0,0,0,26,110,111,110,
                           101,44,122,108,105,98,64,111,112,101,110,115,115,
                           104,46,99,111,109,44,122,108,105,98,0,0,0,0,0,0,0,0,
                           0,0,0,0,0>>,
                         <<20,38,144,242,6,169,190,51,74,102,5,149,16,239,7,65,
                           57,0,0,0,26,100,105,102,102,105,101,45,104,101,108,
                           108,109,97,110,45,103,114,111,117,112,49,45,115,104,
                           97,49,0,0,0,7,115,115,104,45,100,115,115,0,0,0,19,
                           97,101,115,49,50,56,45,99,98,99,44,51,100,101,115,
                           45,99,98,99,0,0,0,19,97,101,115,49,50,56,45,99,98,
                           99,44,51,100,101,115,45,99,98,99,0,0,0,9,104,109,97,
                           99,45,115,104,97,49,0,0,0,9,104,109,97,99,45,115,
                           104,97,49,0,0,0,9,110,111,110,101,44,122,108,105,98,
                           0,0,0,9,110,111,110,101,44,122,108,105,98,0,0,0,0,0,
                           0,0,0,0,0,0,0,0>>,
                         {alg,'diffie-hellman-group1-sha1','ssh-dss',
                             'hmac-sha1','hmac-sha1','aes128-cbc',
                             'aes128-cbc',none,none,none,none},
                         undefined,undefined,ssh_file,ssh_io,none,undefined,0,
                         none,undefined,0,none,undefined,8,undefined,none,
                         undefined,8,undefined,none,undefined,none,undefined,
                         none,none,true,infinity,undefined,undefined,
                         undefined,
                         [{address,"ims"},
                          {port,2223},
                          {system_dir,"/Users/gene/erl_ssh"},
                          {shell,#Fun<ssh_sample_cli.0.21859284>},
                          {role,server}],
                         1,1,undefined,undefined,undefined,undefined,
                         undefined,"publickey,keyboard_interactive,password",
                         undefined,undefined},
                     #Port<0.1003>,<<>>,<<>>,undefined,
                     {ssh_msg_kexinit,
                         <<127,229,163,177,131,154,163,20,128,32,226,34,154,
                           235,187,170>>,
                         ["diffie-hellman-group1-sha1"],
                         ["ssh-dss"],
                         ["aes128-cbc","3des-cbc"],
                         ["aes128-cbc","3des-cbc"],
                         ["hmac-sha1"],
                         ["hmac-sha1"],
                         ["none","zlib"],
                         ["none","zlib"],
                         [],[],false,0},
                     false,<0.54.0>,undefined,undefined,undefined,
                     [{address,"ims"},
                      {port,2223},
                      {system_dir,"/Users/gene/erl_ssh"},
                      {shell,#Fun<ssh_sample_cli.0.21859284>},
                      {role,server}]}
** Reason for termination = 
** {error,[{'DSAPrivateKey',<<48,130,1,186,2,1,0,2,129,129,0,170,223,146,206,
                              87,111,15,213,167,162,93,159,122,170,251,197,236,
                              195,42,174,179,117,37,219,193,70,162,69,63,82,
                              132,149,99,206,90,198,153,34,211,176,14,89,142,
                              220,203,9,122,34,99,12,156,119,19,117,186,2,233,
                              151,22,31,96,153,210,219,121,225,207,231,39,246,
                              64,108,176,211,77,252,98,34,16,210,73,17,189,187,
                              193,111,191,143,115,49,60,159,218,245,67,241,2,
                              130,232,145,217,10,236,86,139,125,238,252,102,
                              246,213,110,249,125,80,182,210,55,229,163,214,91,
                              112,60,117,209,220,205,2,21,0,159,83,129,175,245,
                              131,186,139,165,18,35,133,43,148,124,202,31,9,
                              142,189,2,129,128,107,72,221,121,89,226,22,151,
                              35,105,202,173,197,168,100,60,58,6,23,223,9,121,
                              175,53,248,135,5,120,183,100,107,135,102,219,116,
                              63,213,17,149,118,142,19,143,204,168,236,49,165,
                              1,136,195,111,248,199,182,253,234,46,173,28,30,
                              114,240,8,77,176,107,184,41,108,183,172,165,202,
                              3,90,166,69,76,202,187,58,133,192,38,1,38,110,
                              212,36,18,35,149,58,218,69,134,143,42,1,174,19,
                              233,236,61,165,187,157,254,168,163,243,248,227,
                              110,122,213,72,107,214,220,212,99,245,106,120,91,
                              131,2,129,128,113,214,224,173,14,157,34,113,59,
                              116,57,129,233,210,114,12,213,159,133,106,34,130,
                              102,199,157,241,226,84,186,245,237,230,106,6,231,
                              231,140,208,106,53,74,56,77,48,92,112,47,91,236,
                              135,107,16,8,93,241,130,5,118,126,197,127,233,
                              238,199,226,7,79,225,193,139,174,87,11,168,190,
                              220,127,150,135,210,198,209,242,104,166,143,236,
                              18,125,22,64,26,53,139,45,219,45,144,236,245,193,
                              127,152,100,103,179,152,156,208,18,94,96,227,44,
                              151,136,194,77,114,12,70,223,143,194,196,204,101,
                              184,2,20,43,222,65,115,20,238,35,218,102,176,95,
                              196,101,68,47,163,229,153,49,118>>,
                            not_encrypted}]}

=ERROR REPORT==== 15-Sep-2010::17:18:48 ===
** Generic server <0.52.0> terminating 
** Last message in was {'EXIT',<0.55.0>,
                           {error,
                               [{'DSAPrivateKey',
                                    <<48,130,1,186,2,1,0,2,129,129,0,170,223,
                                      146,206,87,111,15,213,167,162,93,159,122,
                                      170,251,197,236,195,42,174,179,117,37,
                                      219,193,70,162,69,63,82,132,149,99,206,
                                      90,198,153,34,211,176,14,89,142,220,203,
                                      9,122,34,99,12,156,119,19,117,186,2,233,
                                      151,22,31,96,153,210,219,121,225,207,231,
                                      39,246,64,108,176,211,77,252,98,34,16,
                                      210,73,17,189,187,193,111,191,143,115,49,
                                      60,159,218,245,67,241,2,130,232,145,217,
                                      10,236,86,139,125,238,252,102,246,213,
                                      110,249,125,80,182,210,55,229,163,214,91,
                                      112,60,117,209,220,205,2,21,0,159,83,129,
                                      175,245,131,186,139,165,18,35,133,43,148,
                                      124,202,31,9,142,189,2,129,128,107,72,
                                      221,121,89,226,22,151,35,105,202,173,197,
                                      168,100,60,58,6,23,223,9,121,175,53,248,
                                      135,5,120,183,100,107,135,102,219,116,63,
                                      213,17,149,118,142,19,143,204,168,236,49,
                                      165,1,136,195,111,248,199,182,253,234,46,
                                      173,28,30,114,240,8,77,176,107,184,41,
                                      108,183,172,165,202,3,90,166,69,76,202,
                                      187,58,133,192,38,1,38,110,212,36,18,35,
                                      149,58,218,69,134,143,42,1,174,19,233,
                                      236,61,165,187,157,254,168,163,243,248,
                                      227,110,122,213,72,107,214,220,212,99,
                                      245,106,120,91,131,2,129,128,113,214,224,
                                      173,14,157,34,113,59,116,57,129,233,210,
                                      114,12,213,159,133,106,34,130,102,199,
                                      157,241,226,84,186,245,237,230,106,6,231,
                                      231,140,208,106,53,74,56,77,48,92,112,47,
                                      91,236,135,107,16,8,93,241,130,5,118,126,
                                      197,127,233,238,199,226,7,79,225,193,139,
                                      174,87,11,168,190,220,127,150,135,210,
                                      198,209,242,104,166,143,236,18,125,22,64,
                                      26,53,139,45,219,45,144,236,245,193,127,
                                      152,100,103,179,152,156,208,18,94,96,227,
                                      44,151,136,194,77,114,12,70,223,143,194,
                                      196,204,101,184,2,20,43,222,65,115,20,
                                      238,35,218,102,176,95,196,101,68,47,163,
                                      229,153,49,118>>,
                                    not_encrypted}]}}
** When Server state == {state,server,<0.54.0>,<0.55.0>,undefined}
** Reason for termination == 
** {error,[{'DSAPrivateKey',<<48,130,1,186,2,1,0,2,129,129,0,170,223,146,206,
                              87,111,15,213,167,162,93,159,122,170,251,197,236,
                              195,42,174,179,117,37,219,193,70,162,69,63,82,
                              132,149,99,206,90,198,153,34,211,176,14,89,142,
                              220,203,9,122,34,99,12,156,119,19,117,186,2,233,
                              151,22,31,96,153,210,219,121,225,207,231,39,246,
                              64,108,176,211,77,252,98,34,16,210,73,17,189,187,
                              193,111,191,143,115,49,60,159,218,245,67,241,2,
                              130,232,145,217,10,236,86,139,125,238,252,102,
                              246,213,110,249,125,80,182,210,55,229,163,214,91,
                              112,60,117,209,220,205,2,21,0,159,83,129,175,245,
                              131,186,139,165,18,35,133,43,148,124,202,31,9,
                              142,189,2,129,128,107,72,221,121,89,226,22,151,
                              35,105,202,173,197,168,100,60,58,6,23,223,9,121,
                              175,53,248,135,5,120,183,100,107,135,102,219,116,
                              63,213,17,149,118,142,19,143,204,168,236,49,165,
                              1,136,195,111,248,199,182,253,234,46,173,28,30,
                              114,240,8,77,176,107,184,41,108,183,172,165,202,
                              3,90,166,69,76,202,187,58,133,192,38,1,38,110,
                              212,36,18,35,149,58,218,69,134,143,42,1,174,19,
                              233,236,61,165,187,157,254,168,163,243,248,227,
                              110,122,213,72,107,214,220,212,99,245,106,120,91,
                              131,2,129,128,113,214,224,173,14,157,34,113,59,
                              116,57,129,233,210,114,12,213,159,133,106,34,130,
                              102,199,157,241,226,84,186,245,237,230,106,6,231,
                              231,140,208,106,53,74,56,77,48,92,112,47,91,236,
                              135,107,16,8,93,241,130,5,118,126,197,127,233,
                              238,199,226,7,79,225,193,139,174,87,11,168,190,
                              220,127,150,135,210,198,209,242,104,166,143,236,
                              18,125,22,64,26,53,139,45,219,45,144,236,245,193,
                              127,152,100,103,179,152,156,208,18,94,96,227,44,
                              151,136,194,77,114,12,70,223,143,194,196,204,101,
                              184,2,20,43,222,65,115,20,238,35,218,102,176,95,
                              196,101,68,47,163,229,153,49,118>>,
                            not_encrypted}]}



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