https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=3406
Summary: Wrong interpretation in SIP branch field of Via Header
with multiple field implementation, with comma separed
values.
Product: Wireshark
Version: 1.0.7
Platform: Other
OS/Version: Windows XP
Status: NEW
Severity: Critical
Priority: Low
Component: Wireshark
AssignedTo: wireshark-bugs@xxxxxxxxxxxxx
ReportedBy: donatello.boccaforno@xxxxxxxxxx
Created an attachment (id=2927)
--> (https://bugs.wireshark.org/bugzilla/attachment.cgi?id=2927)
A Voice Call SIP flow. The 2nd INVITE has the issue
Build Information:
Version 1.0.7 (SVN Rev 28014)
Copyright 1998-2009 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+ 2.12.8, with GLib 2.14.6, with WinPcap (version unknown),
with libz 1.2.3, without POSIX capabilities, with libpcre 7.0, with SMI 0.4.8,
with ADNS, with Lua 5.1, with GnuTLS 2.6.3, with Gcrypt 1.4.3, with MIT
Kerberos, with PortAudio V19-devel, with AirPcap.
Running on Windows XP Service Pack 3, build 2600, with WinPcap version 4.0.2
(packet.dll version 4.0.0.1040), based on libpcap version 0.9.5, with AirPcap
2.0.0 build 708.
Built using Microsoft Visual C++ 6.0 build 8804
Wireshark is Open Source Software released under the GNU General Public
License.
Check the man page and http://www.wireshark.org for more information.
--
In packet details View, I found a wrong interpretation of the SIP branch field
in Via header when multiple header fields of the same field name whose value is
a comma-separated list can be combined into one header field (so as mentioned
in RFC3261 page 29, paragraph 7.3).
I.e.: with header Via like following
v: SIP/2.0/UDP
138.132.107.234:6060;branch=z9hG4bK.sSsS.8a846bea.fb49ad715b9bf5b1a2327444b4033ba-0.2093_root,
SIP/2.0/UDP 138.132.107.234:4003;branch=z9hG4bK-14302-1-9
branch field is displayed like this
Branch: z9hG4bK.sSsS.8a846bea.fb49ad715b9bf5b1a2327444b4033ba-0.2093_root,
See the attached SIP trace file.
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