Wireshark-bugs: [Wireshark-bugs] [Bug 8548] New: IRC message with multiple params causes malform

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Date: Mon, 01 Apr 2013 14:05:48 +0000
Bug ID 8548
Summary IRC message with multiple params causes malformed packet exception
Classification Unclassified
Product Wireshark
Version SVN
Hardware All
OS All
Status CONFIRMED
Severity Major
Priority Low
Component Dissection engine (libwireshark)
Assignee [email protected]
Reporter [email protected]

Created attachment 10517 [details]
IRC WHO query and response in irc://chat.freenode.net/#wireshark

Build Information:
Version 1.9.3 (SVN Rev 48683 from /trunk)

Copyright 1998-2013 Gerald Combs <[email protected]> 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+ 3.4.2, with Cairo 1.12.2, with Pango 1.30.0, with
GLib 2.32.4, with libpcap, with libz 1.2.7, with POSIX capabilities (Linux),
without libnl, with SMI 0.4.8, with c-ares 1.9.1, with Lua 5.2, without Python,
with GnuTLS 2.12.20, with Gcrypt 1.5.0, with MIT Kerberos, with GeoIP, with
PortAudio V19-devel (built Dec  7 2011 23:44:47), with AirPcap.

Running on Linux 3.2.0-4-686-pae, with locale en_US.UTF-8, with libpcap version
1.3.0, with libz 1.2.7, GnuTLS 2.12.20, Gcrypt 1.5.0, without AirPcap.

Built using gcc 4.7.2.
--
When an IRC message has multiple params, as is allowed according to RFC 1459,
the dissector successfully handles the first set, but fails in the second. The
attached capture shows a typical WHO query of our favorite IRC chanel, with
multiple params in the response.


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