Buffer overflow in the open_table function in sql_base.cc in MySQL 5.0.x up to
5.0.20 might allow remote attackers to execute arbitrary code via crafted
COM_TABLE_DUMP packets with invalid length values.
Also for 4.1.x up to 4.1.18, so FC 4 is also affected.
5.0.21 is pushed into FC5, and 4.1.19 into FC4.