Wireshark · Wireshark-bugs: [Wireshark-bugs] [Bug 6392] New: wireshark fails to detect a couple of tcp packet as being a new PDU

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https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=6392

           Summary: wireshark fails to detect a couple of tcp packet as
                    being a new PDU
           Product: Wireshark
           Version: SVN
          Platform: Other
        OS/Version: Ubuntu
            Status: NEW
          Severity: Critical
          Priority: Low
         Component: Wireshark
        AssignedTo: bugzilla-admin@xxxxxxxxxxxxx
        ReportedBy: mat@xxxxxxxxx


Created an attachment (id=7087)
 --> (https://bugs.wireshark.org/bugzilla/attachment.cgi?id=7087)
Trace presenting the missed PDU problem.

Build Information:
wireshark 1.7.0 (SVN Rev 38933)

Copyright 1998-2011 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 (64-bit) with GTK+ 2.24.4, with Cairo 1.10.2, with Pango 1.28.4, with
GLib 2.28.6, with libpcap 1.1.1, with libz 1.2.3.4, with POSIX capabilities
(Linux), without threads support, with SMI 0.4.8, without c-ares, without ADNS,
without Lua, without Python, with GnuTLS 2.8.6, with Gcrypt 1.4.6, with MIT
Kerberos, without GeoIP, without PortAudio, without AirPcap.

Running on Linux 2.6.38-11-generic, with locale fr_FR.UTF-8, with libpcap
version 1.1.1, with libz 1.2.3.4, GnuTLS 2.8.6, Gcrypt 1.4.6.

Built using gcc 4.5.2.

--
A fragment of DCERPC is missed by wireshark as it fails to recognize 4 TCP
packet as being part of a PDU. This leads to a corrupted reassembled packet.

In the attached trace the non detected PDUs packets are 26, 27, 29, 31 and the
broken reassembled packet is 79.

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