Wireshark-bugs: [Wireshark-bugs] [Bug 4545] New: 6lowpan dissector: copy/paste error results in
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From: bugzilla-daemon@xxxxxxxxxxxxx
Date: Mon, 1 Mar 2010 03:01:50 -0800 (PST)
https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=4545

           Summary: 6lowpan dissector: copy/paste error results in 64-bit
                    source & 16-bit dest failing
           Product: Wireshark
           Version: SVN
          Platform: Other
        OS/Version: Windows XP
            Status: NEW
          Severity: Normal
          Priority: Low
         Component: Wireshark
        AssignedTo: wireshark-bugs@xxxxxxxxxxxxx
        ReportedBy: coflynn@xxxxxxxxx


Created an attachment (id=4345)
 --> (https://bugs.wireshark.org/bugzilla/attachment.cgi?id=4345)
Patch against packet-6lowpan.c

Build Information:
Version 1.3.4-SVN-32012-colin

Copyright 1998-2010 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+ 2.16.6, with GLib 2.22.4, with WinPcap (version unknown),
with libz 1.2.3, without POSIX capabilities, without libpcre, with SMI 0.4.8,
with c-ares 1.7.0, with Lua 5.1, without Python, with GnuTLS 2.8.5, with Gcrypt
1.4.5, with MIT Kerberos, with GeoIP, with PortAudio V19-devel (built Feb 26
2010), with AirPcap, with new_packet_list.

Running on Windows XP Service Pack 3, build 2600, with WinPcap version 4.1.1
(packet.dll version 4.1.0.1753), based on libpcap version 1.0 branch 1_0_rel0b
(20091008), GnuTLS 2.8.5, Gcrypt 1.4.5, without AirPcap.

Built using Microsoft Visual C++ 9.0 build 30729

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

--
A small error in 6lowpan-packet.c results in the "src" address being check for
size, but the code uses the data from the "dest" addr.

Attached patch fixes this issue, just a one-liner.

The bug manifests itself when sending from a 64-bit address to a 16-bit
address, the IID is not built from the link-layer address.

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