[Bug 1622] New: Connections to OpenSSH server blocked by firewall after Windows security updates

[bugzilla-daemon at bugzilla.mindrot.org]

https://bugzilla.mindrot.org/show_bug.cgi?id=1622

           Summary: Connections to OpenSSH server blocked by firewall
                    after Windows security updates
           Product: Portable OpenSSH
           Version: 3.8p1
          Platform: Other
        OS/Version: Other
            Status: NEW
          Keywords: help-wanted
          Severity: normal
          Priority: P2
         Component: sshd
        AssignedTo: unassigned-bugs at mindrot.org
        ReportedBy: mr_somewhere at poirot.us


After my system (WindowsXP, Service Pack 3) installed four security
updates from Microsoft on 15 July 2009, all connections to the OpenSSH
server by Putty or by FTP clients are being blocked. No notification
occurs at the server; the programs on the connecting computers simply
time out with no response from the server. Disabling the Windows
firewall allowed full access by both programs, just as before the
updates. Putty, CoreFTP, and Filezilla are all listed in the firewall
exemptions, and all other settings are consistent with the way I have
been running for some time. I even tried uninstalling OpenSSH and
reinstalling it, with no effect.

The Windows security updates installed were:
Windows XP Cumulative Security Update for ActiveX Killbits for Windows
XP (KB973346)  Wednesday, July 15, 2009 Automatic Updates  

Windows XP Security Update for Windows XP (KB971633)  Wednesday, July
15, 2009 Automatic Updates  

Windows XP Windows Malicious Software Removal Tool - July 2009
(KB890830)  Wednesday, July 15, 2009 Automatic Updates  

Windows XP Security Update for Windows XP (KB961371)  Wednesday, July
15, 2009 Automatic Updates

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