Wireshark-bugs: [Wireshark-bugs] [Bug 2772] New: packet-atm.c protocol ID mask
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From: bugzilla-daemon@xxxxxxxxxxxxx
Date: Mon, 4 Aug 2008 19:02:29 -0700 (PDT)
https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=2772

           Summary: packet-atm.c protocol ID mask
           Product: Wireshark
           Version: SVN
          Platform: All
        OS/Version: All
            Status: NEW
          Severity: Major
          Priority: High
         Component: Wireshark
        AssignedTo: wireshark-bugs@xxxxxxxxxxxxx
        ReportedBy: kip.mcatee@xxxxxxxxxxx


Build Information:
tshark -v
TShark 1.0.99 (SVN Rev 25926)

Copyright 1998-2008 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 GLib 2.14.6, with libpcap 0.9.8, with libz 1.2.3, with POSIX
capabilities (Linux), with libpcre 7.6, without SMI, without ADNS, without Lua,
without GnuTLS, without Gcrypt, without Kerberos.

Running on Linux 2.6.23-gentoo-r9, with libpcap version 0.9.8.

Built using gcc 4.1.1 (Gentoo 4.1.1-r3).

--
Added a mask to drop the high order byte of a short to isolate the protocol ID.
Also lowered the length restriction to support shorter packets for PPPoEoA.
This has been fuzz tested. I've attached a sample capture file that I tested
with.


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