Wireshark-bugs: [Wireshark-bugs] [Bug 10351] MySQL: decoding COM_CHANGE_USER from new clients fa
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From: bugzilla-daemon@xxxxxxxxxxxxx
Date: Wed, 04 Feb 2015 23:16:42 +0000

changed bug 10351


What Removed Added
CC   peter@lekensteyn.nl

Comment # 12 on bug 10351 from 
(In reply to Gerrit Code Review from comment #10)
> Change 4000 had a related patch set uploaded by Alexis La Goutte:
> MySQL: add decode connattrs when use COM_CHANGE_USER
> 
> https://code.wireshark.org/review/4000

This change triggers a dissector assert when the Connect Attrs capability is
set, but no attributes are actually following after the plugin.

From
<http://dev.mysql.com/doc/internals/en/connection-phase-packets.html#packet-Protocol::HandshakeResponse>
(emphasis mine):

 "Starting with MySQL 5.6.6 the client **may** send attributes if
CLIENT_CONNECT_ATTRS is set:"

Does this mean that the capability *may* be set, but the list of attributes can
be empty? The capture in question is mysql-ssl.pcapng (and
mysql-ssl-larger.pcapng) which can be foun on the SampleCaptures wiki page.
(pending STARTTLS changes is needed to decrypt these though).

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