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Suse crash while FTP'ing across SSH, looking for culprits

from [Julian Opificius] Network Security [Permanent Link]
Subject: Suse crash while FTP'ing across SSH, looking for culprits
Date: Tue, 31 May 2005 13:41:18 -0500
Running Suse 9.2, up to date via Yast, as a server with OpenSSH 3.9p1-3.2. I have been successfully connecting using CVS/pserver and PuTTY for a couple of weeeks.

This weekend I connected in from remote location using WSFTP Pro 9.01 in FTP/SSH mode to download a Windows directory tree mounted to the Suse server via smbmount.

After transfer was successfully completed, Linux went down hard as I tried to start another transfer.

I repeated process using direct a LAN connection with the same result.

The "messages" log shows :
May 29 01:27:40 engsrv sshd[13206]: Accepted publickey for <my name deleted> from
<my IP deleted> port 12690 ssh2
May 29 01:27:40 engsrv pure-ftpd: (?@localhost) [INFO] New connection from local
host
May 29 01:27:40 engsrv pure-ftpd: (?@localhost) [INFO] Logout.
May 29 01:27:41 engsrv sshd[13209]: subsystem request for sftp
May 29 11:50:29 engsrv syslogd 1.4.1: restart.

text in <> is my comment.

I deduce from the timestamps that the "subsystem request for sftp" line is the last thing written before the crash.

I don't know who to suspect yet. Can anyone offer any relevant experiences, please?

Thanks,

julian.

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