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Invalid packet length #459

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ghost opened this issue Oct 22, 2018 · 3 comments
Closed

Invalid packet length #459

ghost opened this issue Oct 22, 2018 · 3 comments

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@ghost
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ghost commented Oct 22, 2018

Hi!

Could you help me with debbuging this issue? When it fails there is always same packet length: 1349676916 and value 6f 63 6f 6c. Could it be that sshj does not understand some message?

SSHJ client 0.26
Server: SSH-2.0-OpenSSH_7.6p1 Ubuntu-4

2018-10-22 15:54:16.140 ERROR 25425 --- [         reader] n.schmizz.sshj.transport.TransportImpl   : Dying because - invalid packet length: 1349676916

net.schmizz.sshj.transport.TransportException: invalid packet length: 1349676916
	at net.schmizz.sshj.transport.Decoder.decryptLength(Decoder.java:145) ~[sshj-0.26.0.jar:0.26.0]
	at net.schmizz.sshj.transport.Decoder.decode(Decoder.java:75) ~[sshj-0.26.0.jar:0.26.0]
	at net.schmizz.sshj.transport.Decoder.received(Decoder.java:170) ~[sshj-0.26.0.jar:0.26.0]
	at net.schmizz.sshj.transport.Reader.run(Reader.java:59) ~[sshj-0.26.0.jar:0.26.0]

2018-10-22 15:54:16.140  INFO 25425 --- [         reader] n.schmizz.sshj.transport.TransportImpl   : Disconnected - PROTOCOL_ERROR
2018-10-22 15:54:16.141 ERROR 25425 --- [pool-5-thread-1] net.schmizz.concurrent.Promise           : <<kex done>> woke to: net.schmizz.sshj.transport.TransportException: [PROTOCOL_ERROR] invalid packet length: 1349676916
2018-10-22 15:54:16.142 ERROR 25425 --- [pool-5-thread-1] c.c.remoteaccess.ssh.SshProtocolHandler  : Ssh session initialization failure. invalid packet length: 1349676916

net.schmizz.sshj.transport.TransportException: invalid packet length: 1349676916
	at net.schmizz.sshj.transport.Decoder.decryptLength(Decoder.java:145) ~[sshj-0.26.0.jar:0.26.0]
	at net.schmizz.sshj.transport.Decoder.decode(Decoder.java:75) ~[sshj-0.26.0.jar:0.26.0]
	at net.schmizz.sshj.transport.Decoder.received(Decoder.java:170) ~[sshj-0.26.0.jar:0.26.0]
	at net.schmizz.sshj.transport.Reader.run(Reader.java:59) ~[sshj-0.26.0.jar:0.26.0]```
@hierynomus
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Can you give a bit more logging? When does this occur? During authentication?

@ghost
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ghost commented Oct 23, 2018

It's during key exchange and it's somehow related to missing home directory: Could not chdir to home directory /home/sshtest2: No such file or directory

@ghost
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ghost commented Oct 25, 2018

Closing, because the issue was not related with library itself but with NPE in another part of the system.

@ghost ghost closed this as completed Oct 25, 2018
@massimiliano-brenna massimiliano-brenna mentioned this issue Dec 18, 2024
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