Log Message:
Changes in MySQL 5.5.52 (2016-09-06)

Bugs Fixed
----------
Replication: mysqlbinlog --read-from-remote-server log1 log2 was opening a new \ 
connection for log2 without freeing the connection used for log1. Thanks to \ 
Laurynas Biveinis for the contribution. (Bug 81675, Bug 23540182)

For mysqld_safe, the argument to --malloc-lib now must be one of the directories \ 
/usr/lib, /usr/lib64, /usr/lib/i386-linux-gnu, or /usr/lib/x86_64-linux-gnu. In \ 
addition, the --mysqld and --mysqld-version options can be used only on the \ 
command line and not in an option file. (Bug 24464380)

It was possible to write log files ending with .ini or .cnf that later could be \ 
parsed as option files. The general query log and slow query log can no longer \ 
be written to a file ending with .ini or .cnf. (Bug 24388753)

Privilege escalation was possible by exploiting the way REPAIR TABLE used \ 
temporary files. (Bug 24388746)

Certain internal character-handling functions could fail to handle a too-large \ 
character and cause a server exit. (Bug 23296299)

A blank server name in CREATE SERVER statements produced a server exit rather \ 
than an error. (Bug 23295288)

The optimizer failed to check a function return value for an area calculation, \ 
leading to a server exit. (Bug 23280059)

A prepared statement that used a parameter in the select list of a derived table \ 
that was part of a join could cause a server exit. (Bug 22392374, Bug 24380263)

MEDIUMINT columns used in operations with long integer values could result in \ 
buffer overflow. (Bug 19984392)

EINTR handling in the client library has been fixed so that interrupted read and \ 
write calls are retried. Previously, EINTR was ignored. (Bug 82019, Bug \ 
23703570)