Wireshark-bugs: [Wireshark-bugs] [Bug 7498] New: Wireshark crashes on opening very short NFS pca

Date: Wed, 18 Jul 2012 14:02:50 -0700 (PDT)
https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=7498

           Summary: Wireshark crashes on opening very short NFS pcap file
           Product: Wireshark
           Version: 1.8.0
          Platform: x86
        OS/Version: Windows XP
            Status: NEW
          Severity: Critical
          Priority: Medium
         Component: Wireshark
        AssignedTo: bugzilla-admin@xxxxxxxxxxxxx
        ReportedBy: khnospam-wireshark@xxxxxxxxx
                CC: khnospam-wireshark@xxxxxxxxx


Created attachment 8802
  --> https://bugs.wireshark.org/bugzilla/attachment.cgi?id=8802
packet trace (x1)

Build Information:
Version 1.8.0 (SVN Rev 43431 from /trunk-1.8)

Copyright 1998-2012 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 (32-bit) with GTK+ 2.24.10, with Cairo 1.10.2, with Pango 1.30.0, with
GLib 2.32.2, with WinPcap (4_1_2), with libz 1.2.5, without POSIX capabilities,
with SMI 0.4.8, with c-ares 1.7.1, with Lua 5.1, without Python, with GnuTLS
2.12.18, with Gcrypt 1.4.6, with MIT Kerberos, with GeoIP, with PortAudio
V19-devel (built Jun 21 2012), with AirPcap.

Running on Windows XP Service Pack 3, build 2600, with WinPcap version 4.1.2
(packet.dll version 4.1.0.2001), based on libpcap version 1.0 branch 1_0_rel0b
(20091008), GnuTLS 2.12.18, Gcrypt 1.4.6, without AirPcap.

Built using Microsoft Visual C++ 10.0 build 40219

Wireshark is Open Source Software released under the GNU General Public
License.

Check the man page and http://www.wireshark.org for more information.


------
Problem has been observed on:
a. Windows XP (32bit)
b. Windows 7  (64bit)

--
Wireshark on Windows (Win XP or Win 7) when it tries to open some very short
pcap files (of about 300 packets) containing NFS traffic.  I have tried
reinstalling Wireshark.

It fails in one of 3 modes.  

a. wireshark.exe: Application Error
   The instruction at "0x7c910f1e" referenced memory at "0x323a632e".  The
memory could not be "read".

   Click on OK to terminate the program
   Click on CANCEL to debug the program --- but nothing happens

b. Wireshark
   Error signature:
     AppName: wireshark.exe AppVer: 1.8.0.43431 ModName: msvcr:.dll
     ModVer: 7.0.2600.5512  Offset 00037740

   Error signature
     AppName: wireshark.exe AppVer: 1.8.0.43431 ModName: ntdll.dl
     ModVer: 5.1.2600.6055 Offset 00010ef4

c. GLib-ERROR (recursed)**:gmem.c:230: failed to allocate 62 bytes
   **WARNING (recursed)**: Dissector bug, protocol NFS, in packet xx:
     STATUS_ACCESS_VIOLATION: dissector accessed an invalid memory address
   (Unfortunately I don't have the exact pcap file that triggered this one.)

A (very short) pcap file is attached.
(Is there a way to attach multiple files to the bug?)

Thanks in advance.

KH

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