Security update for perl-DBD-mysql (moderate)

This update for perl-DBD-mysql fixes the following issues:

• CVE-2017-10789: The DBD::mysql module when with mysql_ssl=1 setting
  enabled, means that SSL is optional (even though this setting’s
  documentation has a "your communication with the server will be
  encrypted" statement), which could lead man-in-the-middle attackers to
  spoof servers via a cleartext-downgrade attack, a related issue to
  CVE-2015-3152. (bsc#1047059)
• CVE-2017-10788: The DBD::mysql module through 4.043 for Perl allows
  remote attackers to cause a denial of service (use-after-free and
  application crash) or possibly have unspecified other impact by
  triggering (1) certain error responses from a MySQL server or (2) a loss
  of a network connection to a MySQL server. The use-after-free defect was
  introduced by relying on incorrect Oracle mysql_stmt_close documentation
  and code examples. (bsc#1047095)

This update was imported from the SUSE:SLE-12:Update update project.