Wireshark · Wireshark-bugs: [Wireshark-bugs] [Bug 1638] New: SMB Pipe dissector bug on certain packets

[bugzilla-daemon@xxxxxxxxxxxxx]

http://bugs.wireshark.org/bugzilla/show_bug.cgi?id=1638

           Summary: SMB Pipe dissector bug on certain packets
           Product: Wireshark
           Version: SVN
          Platform: PC
        OS/Version: Linux
            Status: NEW
          Severity: Normal
          Priority: Medium
         Component: Wireshark
        AssignedTo: wireshark-bugs@xxxxxxxxxxxxx
        ReportedBy: stephentfisher@xxxxxxxxx


Build Information:
wireshark 0.99.6 (SVN Rev 22037)

Copyright 1998-2007 Gerald Combs <gerald@xxxxxxxxxxxxx> and contributors.
This is free software; see the source for copying conditions. There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.

Compiled with GTK+ 2.10.8, with GLib 2.12.9, with libpcap 0.9.4, with libz
1.2.3, with libpcre 6.6, with Net-SNMP 5.3.1, with ADNS, without Lua, without
GnuTLS, with Gcrypt 1.2.3, with MIT Kerberos, without PortAudio, without
AirPcap.

Running on Linux 2.6.20-1.2948.fc6, with libpcap version 0.9.4.

Built using gcc 4.1.1 20070105 (Red Hat 4.1.1-51).
--
While always running the latest SVN, at some point between Feb 2007 and now, a
problem was introduced that causes these console warnings to be printed when
loading a particular capture file:

14:59:38          Warn Dissector bug, protocol SMB Pipe, in packet 4:
proto.c:2902: failed assertion "tvb != ((void *)0) || *length == 0"

I didn't see these errors when I was first working with the capture file a few
months ago.  The attached capture file is a stripped down version of the SMB
traffic between two hosts.  I got it down to the fewest number of packets
needed to duplicate the problem.


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