http://bugs.wireshark.org/bugzilla/show_bug.cgi?id=1601
Summary: pppdump wiretap fails on 0-length packets
Product: Wireshark
Version: SVN
Platform: PC
OS/Version: All
Status: NEW
Severity: Major
Priority: Low
Component: Wireshark
AssignedTo: wireshark-bugs@xxxxxxxxxxxxx
ReportedBy: b-wireshark@xxxxxxxxxxxxxxx
Build Information:
wireshark 0.99.4
Copyright 1998-2006 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+ 2.10.11, with GLib 2.12.11, with libpcap 0.9.5, with libz
1.2.3, with libpcre 6.7, without UCD-SNMP or Net-SNMP, with ADNS, without Lua,
with GnuTLS 1.4.4, with Gcrypt 1.2.3, with MIT Kerberos, with PortAudio <= V18,
without AirPcap.
Running on Linux 2.6.20-15-386, with libpcap version 0.9.5.
Built using gcc 4.1.2 (Ubuntu 4.1.2-0ubuntu4).
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A pppdump file with a zero length packet triggers this assertion:
22:43:34 Err file pppdump.c: line 618 (collate): assertion failed:
(num_bytes_to_skip < n)
The attached patch fixes this, by simply skipping over zero-length pppdump
records. Maybe there's a better solution, but this at least stops the crash.
--
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