Wireshark-bugs: [Wireshark-bugs] [Bug 12713] New: CIP dissector crash because of NULL tvb
| Bug ID |
12713
|
| Summary |
CIP dissector crash because of NULL tvb
|
| Product |
Wireshark
|
| Version |
2.0.5
|
| Hardware |
x86-64
|
| OS |
Windows 7
|
| Status |
UNCONFIRMED
|
| Severity |
Major
|
| Priority |
Low
|
| Component |
Dissection engine (libwireshark)
|
| Assignee |
bugzilla-admin@wireshark.org
|
| Reporter |
gitmaster@passific.fr
|
Created attachment 14791 [details]
CIP frames sample to reproduce the bug
Build Information:
Version 2.0.5
Copyright 1998-2016 Gerald Combs <gerald@wireshark.org> and contributors.
License GPLv2+: GNU GPL version 2 or later
<http://www.gnu.org/licenses/old-licenses/gpl-2.0.html>
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 Qt 5.5.1, with WinPcap (4_1_3), with libz 1.2.8, with
GLib 2.42.0, with SMI 0.4.8, with c-ares 1.11.0, with Lua 5.2, with GnuTLS
3.2.15, with Gcrypt 1.6.2, with MIT Kerberos, with GeoIP, with QtMultimedia,
with AirPcap.
Running on 64-bit Windows 7 Service Pack 1, build 7601, with locale
French_France.1252, with WinPcap version 4.1.3 (packet.dll version 4.1.0.2980),
based on libpcap version 1.0 branch 1_0_rel0b (20091008), with GnuTLS 3.2.15,
with Gcrypt 1.6.2, with AirPcap 4.1.0 build 1622.
Intel(R) Core(TM) i7-4600M CPU @ 2.90GHz (with SSE4.2), with 7817MB of physical
memory.
Built using Microsoft Visual C++ 12.0 build 31101
Wireshark is Open Source Software released under the GNU General Public
License.
Check the man page and http://www.wireshark.org for more information.
--
New checks done in function proto_tree_add_text_valist_internal (proto.c), make
CIP dissector to crash because function proto_tree_add_subtree is called with a
NULL tvb.
Worked OK in Wireshark 2.0.4
The workaround I used is to give the current tvb, as the start and length
parameters are 0.
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