Bug 1178

Summary:

Session to F-Secure SSH server may hang

Product:

Portable OpenSSH

Reporter:

Dan O'Reilly <dano>

Component:

ssh

Assignee:

Assigned to nobody <unassigned-bugs>

Status:

CLOSED WORKSFORME

Severity:

major

CC:

djm

Priority:

Version:

4.3p2

Hardware:

ix86

OS:

All

Attachments:

Description	Flags
This is a session to Tru64 UNIX	none

Description Dan O'Reilly 2006-03-31 09:26:44 AEDT

If a shell or exec session to an F-Secure (AKA, "WRQ") server is terminated prematurely after authentication and after the "shell" or "exec" packet is sent, either because the server is misconfigured or it rejects the session, the OpenSSH client will hang.  Either the server process or the client process must be manually killed.

Comment 1 Damien Miller 2006-04-01 17:07:03 AEDT

Could you please attach a debug log from a ssh client exhibiting this problem?

Comment 2 Dan O'Reilly 2006-04-04 00:01:27 AEST

Created attachment 1112 [details]
This is a session to Tru64 UNIX

This is a log from Fedora Core 5 to Tru64 UNIX running the F-Secure server.  I can readily replicate with the same server on OpenVMS.  The key here is that the server has the SessionRestricted subsystem flag set.

Comment 3 Damien Miller 2007-05-18 09:38:53 AEST

I don't see anything in this log that indicates that an error has occurred, which probably means that the remote end is not informing the client. If this is the case, I don't think there is anything we can do here. Does setting ServerAliveInterval and ServerAliveCountMax help?

Comment 4 Damien Miller 2008-06-13 13:28:01 AEST

one year, no reply == bug closed

Comment 5 Damien Miller 2008-07-22 12:08:08 AEST

Mass update RESOLVED->CLOSED after release of openssh-5.1