https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=3974
Summary: wrong decoding of gtp.target identification
Product: Wireshark
Version: 1.2.1
Platform: x86
OS/Version: Windows XP
Status: NEW
Severity: Major
Priority: Low
Component: Wireshark
AssignedTo: wireshark-bugs@xxxxxxxxxxxxx
ReportedBy: martin.zigo@xxxxxxxxx
Build Information:
Version 1.2.1 (SVN Rev 29141)
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+ 2.16.2, with GLib 2.20.3, with WinPcap (version unknown),
with libz 1.2.3, without POSIX capabilities, with libpcre 7.0, with SMI 0.4.8,
with c-ares 1.6.0, with Lua 5.1, with GnuTLS 2.8.1, with Gcrypt 1.4.4, with MIT
Kerberos, with GeoIP, with PortAudio V19-devel (built Jul 19 2009), with
AirPcap.
Running on Windows XP Service Pack 2, build 2600, with WinPcap version 4.0
(packet.dll version 4.0.0.755), based on libpcap version 0.9.5, GnuTLS 2.8.1,
Gcrypt 1.4.4, without AirPcap.
Built using Microsoft Visual C++ 9.0 build 30729
Wireshark is Open Source Software released under the GNU General Public
License.
Check the man page and http://www.wireshark.org for more information.
--
GTP protocol: Target Identification shall be coded as TLV IE where value is
coded as TargetRNC-ID part of TargetID according 3GPP 25.413 and not as
TargetID => it is not a choice.
TargetID ::= CHOICE {
targetRNC-ID TargetRNC-ID,
cGI CGI,
...
}
such badly decoded IE is considered as Malformed packet
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