[Bug 480601] [NEW] mysql 5.1 client segfault talking to 4.0 server

[steve.horlsey]

Public bug reported:

Binary package hint: mysql-client-5.1

Connecting to an old (4.0) mysql server. Segfault when using the "status" command. I also find that mysql-admin crashes when trying to look at the server status, and I presume it is the same problem. 
This is using Ubuntu 9.10 as the client OS (server is on windows).
Here is a copy of my login session:

steve at dingly:~$ mysql -h 1.2.3.4 -u xxxxxxxx -p -C
Enter password: 
Welcome to the MySQL monitor.  Commands end with ; or \g.
Your MySQL connection id is 9966075
Server version: 4.0.22-debug-log

Type 'help;' or '\h' for help. Type '\c' to clear the current input
statement.

mysql> status
--------------
mysql  Ver 14.14 Distrib 5.1.37, for debian-linux-gnu (i486) using  EditLine wrapper

Connection id:		9966075
SSL:			Not in use
Current pager:		stdout
Using outfile:		''
Using delimiter:	;
Server version:		4.0.22-debug-log
Protocol version:	10
Connection:		1.2.3.4 via TCP/IP
ERROR 1193 (HY000): Unknown system variable 'character_set_client'
ERROR 1193 (HY000): Unknown system variable 'character_set_client'
Segmentation fault
steve at dingly:~$

** Affects: mysql-dfsg-5.1 (Ubuntu)
     Importance: Undecided
         Status: New

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mysql 5.1 client segfault talking to 4.0 server
https://bugs.launchpad.net/bugs/480601
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