[jira] [Created] (SSHD-738) "BufferException: Underflow" warning is frequently reported

[David Ostrovsky (JIRA)]

David Ostrovsky created SSHD-738:


 Summary: "BufferException: Underflow" warning is frequently 
reported
 Key: SSHD-738
 URL: https://issues.apache.org/jira/browse/SSHD-738
 Project: MINA SSHD
  Issue Type: Bug
Affects Versions: 1.2.0
 Environment: Gerrit Code Review
Reporter: David Ostrovsky


Since upgrade to 1.2.0 Gerrit users report this warning being frequently 
reported:

{noformat}
[2017-04-05 09:21:22,246] [sshd-SshServer[3b6c7bae]-nio2-thread-18] WARN  
org.apache.sshd.server.session.ServerSessionImpl : 
exceptionCaught(ServerSessionImpl[@/y:47277])[state=Opened] 
BufferException: Underflow
{noformat}

It worth mention, that other SSHD users reported similar problem: 
https://jira.atlassian.com/browse/BAM-17773.





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[jira] [Commented] (SSHD-737) "Invalid encoding: redundant leading 0s" when establishing session

[Grzegorz Grzybek (JIRA)]

[ 
https://issues.apache.org/jira/browse/SSHD-737?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=15956367#comment-15956367
 ] 

Grzegorz Grzybek commented on SSHD-737:
---

Thanks for information.

> "Invalid encoding: redundant leading 0s" when establishing session
> --
>
> Key: SSHD-737
> URL: https://issues.apache.org/jira/browse/SSHD-737
> Project: MINA SSHD
>  Issue Type: Bug
>Affects Versions: 0.14.0
>Reporter: Grzegorz Grzybek
>Assignee: Goldstein Lyor
> Fix For: 1.4.0
>
>
> Probably related to https://bugs.openjdk.java.net/browse/JDK-8175251. I'm 
> getting:
> {noformat}
> 2017-04-03 12:57:52,932 | INFO  | d]-nio2-thread-1 | ClientSessionImpl
> | 33 - org.apache.sshd.core - 0.14.0 | Client session created
> 2017-04-03 12:57:52,932 | DEBUG | d]-nio2-thread-1 | ClientSessionImpl
> | 33 - org.apache.sshd.core - 0.14.0 | Send SSH_MSG_KEXINIT
> 2017-04-03 12:57:52,932 | TRACE | d]-nio2-thread-1 | ClientSessionImpl
> | 33 - org.apache.sshd.core - 0.14.0 | Sending packet #0: 14 5c dd 49 
> 7d 80 20 9d 4b d8 c9 11 ac 42 34 81 08 00 00 00 9b 64 69 66 66 69 65 2d 68 65 
> 6c 6c 6d 61 6e 2d 67 72 6f 75 70 2d 65 78 63 68 61 6e 67 65 2d 73 68 61 32 35 
> 36 2c 64 69 66 66 69 65 2d 68 65 6c 6c 6d 61 6e 2d 67 72 6f 75 70 2d 65 78 63 
> 68 61 6e 67 65 2d 73 68 61 31 2c 65 63 64 68 2d 73 68 61 32 2d 6e 69 73 74 70 
> 32 35 36 2c 65 63 64 68 2d 73 68 61 32 2d 6e 69 73 74 70 33 38 34 2c 65 63 64 
> 68 2d 73 68 61 32 2d 6e 69 73 74 70 35 32 31 2c 64 69 66 66 69 65 2d 68 65 6c 
> 6c 6d 61 6e 2d 67 72 6f 75 70 31 2d 73 68 61 31 00 00 00 4b 65 63 64 73 61 2d 
> 73 68 61 32 2d 6e 69 73 74 70 32 35 36 2c 65 63 64 73 61 2d 73 68 61 32 2d 6e 
> 69 73 74 70 33 38 34 2c 65 63 64 73 61 2d 73 68 61 32 2d 6e 69 73 74 70 35 32 
> 31 2c 73 73 68 2d 64 73 73 2c 73 73 68 2d 72 73 61 00 00 00 36 61 65 73 31 32 
> 38 2d 63 74 72 2c 61 72 63 66 6f 75 72 31 32 38 2c 61 65 73 31 32 38 2d 63 62 
> 63 2c 33 64 65 73 2d 63 62 63 2c 62 6c 6f 77 66 69 73 68 2d 63 62 63 00 00 00 
> 36 61 65 73 31 32 38 2d 63 74 72 2c 61 72 63 66 6f 75 72 31 32 38 2c 61 65 73 
> 31 32 38 2d 63 62 63 2c 33 64 65 73 2d 63 62 63 2c 62 6c 6f 77 66 69 73 68 2d 
> 63 62 63 00 00 00 47 68 6d 61 63 2d 73 68 61 32 2d 32 35 36 2c 68 6d 61 63 2d 
> 73 68 61 32 2d 35 31 32 2c 68 6d 61 63 2d 73 68 61 31 2c 68 6d 61 63 2d 6d 64 
> 35 2c 68 6d 61 63 2d 73 68 61 31 2d 39 36 2c 68 6d 61 63 2d 6d 64 35 2d 39 36 
> 00 00 00 47 68 6d 61 63 2d 73 68 61 32 2d 32 35 36 2c 68 6d 61 63 2d 73 68 61 
> 32 2d 35 31 32 2c 68 6d 61 63 2d 73 68 61 31 2c 68 6d 61 63 2d 6d 64 35 2c 68 
> 6d 61 63 2d 73 68 61 31 2d 39 36 2c 68 6d 61 63 2d 6d 64 35 2d 39 36 00 00 00 
> 04 6e 6f 6e 65 00 00 00 04 6e 6f 6e 65 00 00 00 00 00 00 00 00 00 00 00 00 00
> 2017-04-03 12:57:52,933 | DEBUG | 3)-192.168.0.220 | ClientUserAuthServiceOld 
> | 33 - org.apache.sshd.core - 0.14.0 | Trying authentication with 
> org.apache.sshd.client.auth.deprecated.UserAuthPassword@30ed5323
> 2017-04-03 12:57:52,933 | DEBUG | 3)-192.168.0.220 | ClientUserAuthServiceOld 
> | 33 - org.apache.sshd.core - 0.14.0 | waiting to send authentication
> 2017-04-03 12:57:52,933 | INFO  | d]-nio2-thread-1 | ClientSessionImpl
> | 33 - org.apache.sshd.core - 0.14.0 | Server version string: 
> SSH-2.0-SSHD-CORE-0.14.0
> 2017-04-03 12:57:52,947 | TRACE | d]-nio2-thread-2 | ClientSessionImpl
> | 33 - org.apache.sshd.core - 0.14.0 | Received packet #1: 14 7b 0e 
> 99 05 b0 83 3c be 6a 22 3b 2b a1 c3 0b cb 00 00 00 9b 64 69 66 66 69 65 2d 68 
> 65 6c 6c 6d 61 6e 2d 67 72 6f 75 70 2d 65 78 63 68 61 6e 67 65 2d 73 68 61 32 
> 35 36 2c 64 69 66 66 69 65 2d 68 65 6c 6c 6d 61 6e 2d 67 72 6f 75 70 2d 65 78 
> 63 68 61 6e 67 65 2d 73 68 61 31 2c 65 63 64 68 2d 73 68 61 32 2d 6e 69 73 74 
> 70 32 35 36 2c 65 63 64 68 2d 73 68 61 32 2d 6e 69 73 74 70 33 38 34 2c 65 63 
> 64 68 2d 73 68 61 32 2d 6e 69 73 74 70 35 32 31 2c 64 69 66 66 69 65 2d 68 65 
> 6c 6c 6d 61 6e 2d 67 72 6f 75 70 31 2d 73 68 61 31 00 00 00 07 73 73 68 2d 64 
> 73 73 00 00 00 0a 61 65 73 31 32 38 2d 63 74 72 00 00 00 0a 61 65 73 31 32 38 
> 2d 63 74 72 00 00 00 09 68 6d 61 63 2d 73 68 61 31 00 00 00 09 68 6d 61 63 2d 
> 73 68 61 31 00 00 00 04 6e 6f 6e 65 00 00 00 04 6e 6f 6e 65 00 00 00 00 00 00 
> 00 00 00 00 00 00 00
> 2017-04-03 12:57:52,947 | DEBUG | d]-nio2-thread-2 | ClientSessionImpl
> | 33 - org.apache.sshd.core - 0.14.0 | Received SSH_MSG_KEXINIT
> 2017-04-03 12:57:52,947 | TRACE | d]-nio2-thread-2 | ClientSessionImpl
> | 33 - org.apache.sshd.core - 0.14.0 | Kex: negotiate(kex algorithms) 
> guess=diffie-hellman-group-exchange-sha256 (client: 
>