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Posted to dev@mina.apache.org by "Goldstein Lyor (Jira)" <ji...@apache.org> on 2019/08/23 16:26:00 UTC
[jira] [Closed] (SSHD-938) SSH sessions being closed with invalid
packet length
[ https://issues.apache.org/jira/browse/SSHD-938?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Goldstein Lyor closed SSHD-938.
-------------------------------
Assignee: Goldstein Lyor
Resolution: Won't Fix
Sorry, we do not provide support for old versions due to lack of manpower. 0.13.0 is extremely old - I strongly recommend using the latest version - currently 2.3.0
> SSH sessions being closed with invalid packet length
> ----------------------------------------------------
>
> Key: SSHD-938
> URL: https://issues.apache.org/jira/browse/SSHD-938
> Project: MINA SSHD
> Issue Type: Bug
> Affects Versions: 0.13.0
> Reporter: Anudeep
> Assignee: Goldstein Lyor
> Priority: Blocker
> Attachments: server.7z
>
>
> SSH connections are being closed with invalid packet length and TCP connection goes into CLOSE_WAIT state and once CLOSE_WAIT state count crosses 4 no more SSH connection is being allowed.
> with SSHD-core-0.13.0
>
> Below is the error
> 2019-08-22 09:53:29,106 INFO [org.apache.sshd.server.session.ServerSession] (sshd-SshServer[6162dce4]-nio2-thread-2) Error decoding packet (invalid length) a5 5f 74 5f a6 6f ea 41 02 c0 0a 54 83 22 e4 77 53 7d 0d b9 25 de 36 1d 07 cb cd 43 66 95 51 b2 72 54 d5 4e 2d 0a d5 17 f4 5e 81 4d 6a b8 ab f7 00 bf 4d 40 f5 56 b7 61 9b 8a be fe 54 d4 89 a2 c5 07 3c de 25 95 44 18 4f 90 dc aa 5b de 40 85 71 12 cc f6 c0 34 8d 0e 75 95 a5 5b 8d f6 b9 f6 94 04 d8 b5 25 5c d5 58 06 d1 82 68 13 2f 4c a0 ee 78 6b 20 97 52 2d 93 4c 88 bc 17 53 ca eb 34 23 c1 c6 1e 5a f9 31 e7 52 f9 ef 88 03 de e8 af ba 11 5e 97 50 1e c2 26 ba 80 34 55 3f 38 49 0c a9 80 8c a3 fe 6f b6 b6 5d 45 41 e9 e0 e6 d5 15 d6 44 f8 c42019-08-22 09:53:29,106 INFO [org.apache.sshd.server.session.ServerSession] (sshd-SshServer[6162dce4]-nio2-thread-2) Error decoding packet (invalid length) a5 5f 74 5f a6 6f ea 41 02 c0 0a 54 83 22 e4 77 53 7d 0d b9 25 de 36 1d 07 cb cd 43 66 95 51 b2 72 54 d5 4e 2d 0a d5 17 f4 5e 81 4d 6a b8 ab f7 00 bf 4d 40 f5 56 b7 61 9b 8a be fe 54 d4 89 a2 c5 07 3c de 25 95 44 18 4f 90 dc aa 5b de 40 85 71 12 cc f6 c0 34 8d 0e 75 95 a5 5b 8d f6 b9 f6 94 04 d8 b5 25 5c d5 58 06 d1 82 68 13 2f 4c a0 ee 78 6b 20 97 52 2d 93 4c 88 bc 17 53 ca eb 34 23 c1 c6 1e 5a f9 31 e7 52 f9 ef 88 03 de e8 af ba 11 5e 97 50 1e c2 26 ba 80 34 55 3f 38 49 0c a9 80 8c a3 fe 6f b6 b6 5d 45 41 e9 e0 e6 d5 15 d6 44 f8 c42019-08-22 09:53:29,106 DEBUG [org.apache.sshd.common.io.nio2.Nio2Session] (sshd-SshServer[6162dce4]-nio2-thread-2) Caught exception, now calling handler2019-08-22 09:53:29,106 WARN [org.apache.sshd.server.session.ServerSession] (sshd-SshServer[6162dce4]-nio2-thread-2) Exception caught: org.apache.sshd.common.SshException: Invalid packet length: -16976455 at org.apache.sshd.common.session.AbstractSession.decode(AbstractSession.java:677) [sshd-core-0.13.0.jar:0.13.0] at org.apache.sshd.common.session.AbstractSession.messageReceived(AbstractSession.java:283) [sshd-core-0.13.0.jar:0.13.0] at org.apache.sshd.common.AbstractSessionIoHandler.messageReceived(AbstractSessionIoHandler.java:54) [sshd-core-0.13.0.jar:0.13.0] at org.apache.sshd.common.io.nio2.Nio2Session$1.onCompleted(Nio2Session.java:184) [sshd-core-0.13.0.jar:0.13.0] at org.apache.sshd.common.io.nio2.Nio2Session$1.onCompleted(Nio2Session.java:170) [sshd-core-0.13.0.jar:0.13.0] at org.apache.sshd.common.io.nio2.Nio2CompletionHandler$1.run(Nio2CompletionHandler.java:32) [sshd-core-0.13.0.jar:0.13.0] at java.security.AccessController.doPrivileged(Native Method) [rt.jar:1.8.0_172] at org.apache.sshd.common.io.nio2.Nio2CompletionHandler.completed(Nio2CompletionHandler.java:30) [sshd-core-0.13.0.jar:0.13.0] at sun.nio.ch.Invoker.invokeUnchecked(Invoker.java:126) [rt.jar:1.8.0_172] at sun.nio.ch.Invoker$2.run(Invoker.java:218) [rt.jar:1.8.0_172] at sun.nio.ch.AsynchronousChannelGroupImpl$1.run(AsynchronousChannelGroupImpl.java:112) [rt.jar:1.8.0_172] at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) [rt.jar:1.8.0_172]
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