Wireshark · Wireshark-bugs: [Wireshark-bugs] [Bug 12652] New: Attribute Flags TLV is decoded incorrectly

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Bug ID	12652
Summary	Attribute Flags TLV is decoded incorrectly
Product	Wireshark
Version	2.1.x (Experimental)
Hardware	x86
OS	All
Status	UNCONFIRMED
Severity	Major
Priority	Low
Component	Dissection engine (libwireshark)
Assignee	bugzilla-admin@wireshark.org
Reporter	alexander.okonnikov@gmail.com

Created attachment 14754 [details]
RSVP Path message with LSP_ATTRIBUTES object

Build Information:
Wireshark 2.3.0-21-ga02e90d (Git Rev Unknown from unknown)

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 GTK+ 3.20.6, with Cairo 1.14.6, with Pango 1.40.1, with
libpcap, without POSIX capabilities, without libnl, with GLib 2.48.1, with zlib
1.2.8, with SMI 0.4.8, without c-ares, without Lua, without GnuTLS, without
Gcrypt, without Kerberos, without GeoIP, with PortAudio V19-devel (built Feb 15
2014 23:28:00), without AirPcap.

Running on Linux 4.6.0-1-amd64, with locale ru_RU.UTF-8, with libpcap version
1.7.4, with zlib 1.2.8.
Intel(R) Core(TM) i7-4800MQ CPU @ 2.70GHz (with SSE4.2)

Built using gcc 5.4.0 20160609.
--
Attribute Flags TLV of LSP_ATTRIBUTES object is decoded incorrectly. Wireshark
numbers bits of the Flags field from right to left, whereas they should be
numbered from left to right (RFC 5420, Section 3.1). Attached dump contains
RSVP Path message with LSP_ATTRIBUTES object which contains Attribute Flags
TLV. In that TLV the 7th bit is set (bits are counted from 0 to 31, from left
(MSB) to right (LSB)).

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