Synopsis

Important: mariadb-galera security and bug fix update

Type/Severity

Security Advisory: Important

Topic

An update for mariadb-galera is now available for Red Hat OpenStack Platform 8.0 (Liberty).

Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.

Description

MariaDB is a multi-user, multi-threaded SQL database server that is binary compatible with MySQL. Galera is a synchronous multi-master cluster for MariaDB.

Security Fix(es):

• It was discovered that the MySQL logging functionality allowed writing to MySQL configuration files. An administrative database user, or a database user with FILE privileges, could possibly use this flaw to run arbitrary commands with root privileges on the system running the database server. (CVE-2016-6662)
  

Bug Fix(es):

• Previously, both the mariadb-server and mariadb-galera-server packages shipped the client-facing libraries, dialog.so and mysql_clear_password.so. As a result, the mariadb-galera-server package would fail to install because of package conflicts. With this update, these libraries have been moved from mariadb-galera-server to mariadb-libs, and the mariadb-galera-server package installs successfully. (BZ#1376905)
  
• Because Red Hat Enterprise Linux 7.3 changed the return format of the "systemctl is-enabled" command as consumed by shell scripts, the mariadb-galera RPM package, upon installation, erroneously detected that the MariaDB service was enabled when it was not. As a result, the Red Hat OpenStack Platform installer, which then tried to run mariadb-galera using Pacemaker and not systemd, failed to start Galera. With this update, mariadb-galera's RPM installation scripts now use a different systemctl command, correctly detecting the default MariaDB as disabled, and the installer can succeed. (BZ#1376913)

Solution

For details on how to apply this update, which includes the changes described in this advisory, refer to:

https://access.redhat.com/articles/11258

After installing this update, the MariaDB server daemon (mysqld) will be restarted automatically.

Affected Products

• Red Hat OpenStack 8 x86_64

Fixes

• BZ - 1375198 - CVE-2016-6662 mysql: general_log can write to configuration files, leading to privilege escalation
• BZ - 1376905 - RHEL 7.3 upgrades fails on upgrade because of mariadb-libs package conflict.
• BZ - 1376913 - mysqld service prevents haproxy to get started and deployment fails

CVEs

• CVE-2016-6662

References

• https://access.redhat.com/security/updates/classification/#important

Red Hat OpenStack 8

SRPM
mariadb-galera-5.5.42-5.el7ost.src.rpm	SHA-256: 1cc952930cbe47bbaa80b2dd1ce471f065ac3bda9650301dc695aed317e24700
x86_64
mariadb-galera-common-5.5.42-5.el7ost.x86_64.rpm	SHA-256: 1cf3bcdcac0219cc53a2db1e19376f24af7f29c5ba01bb3a172b73789e84c9d6
mariadb-galera-debuginfo-5.5.42-5.el7ost.x86_64.rpm	SHA-256: 5c9ad9a92e3c111f58d4daccc835ad06fdf5f86266f095ef2f08d1c458eb8493
mariadb-galera-server-5.5.42-5.el7ost.x86_64.rpm	SHA-256: 5502c246ec3c38411eebfa2b151cedf94f307e3bd8ac325db348721f936ac288