https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=7476
Summary: UMA dissector incorrectly passes MAC addresses to
wireshark core
Product: Wireshark
Version: SVN
Platform: All
OS/Version: All
Status: NEW
Severity: Normal
Priority: Low
Component: Dissection engine (libwireshark)
AssignedTo: bugzilla-admin@xxxxxxxxxxxxx
ReportedBy: laforge@xxxxxxxxxxxx
Created attachment 8772
--> https://bugs.wireshark.org/bugzilla/attachment.cgi?id=8772
patch to fix the issue
Build Information:
wireshark 1.9.0 (SVN Rev Unknown from unknown)
Copyright 1998-2012 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 (64-bit) with GTK+ 2.24.10, with Cairo 1.12.2, with Pango 1.30.0, with
GLib 2.32.3, with libpcap, with libz 1.2.7, with POSIX capabilities (Linux),
with libnl 1, without SMI, without c-ares, with ADNS, without Lua, without
Python, with GnuTLS 2.12.20, with Gcrypt 1.5.0, with MIT Kerberos, with GeoIP,
with PortAudio <= V18, without AirPcap.
Running on Linux 3.2.0-2-amd64, 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.
Built using gcc 4.7.1.
BUT: I've seen this even with much older versions (e.g. 1.7.x)
--
When dissecting an UMA capture, the UMA dissector causes an error in proto.c,
line 1346. The reason is that it passes a MAC address (6 byte) with a length
field of 7 byte. In proto.c it is checked if the 7 == 6 and thus aborted.
I'm attaching a patch against current SVN to fix this. I'll also provide a
pcap file to illustrate the problem.
--
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