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Red Hat Product Errata RHSA-2016:2059 - Security Advisory
Issued:
2016-10-13
Updated:
2016-10-13

RHSA-2016:2059 - Security Advisory

  • Overview
  • Updated Packages

Synopsis

Important: mariadb-galera security and bug fix update

Type/Severity

Security Advisory: Important

Red Hat Insights patch analysis

Identify and remediate systems affected by this advisory.

View affected systems

Topic

An update for mariadb-galera is now available for Red Hat Enterprise Linux OpenStack Platform 5.0 (Icehouse) for RHEL 7.

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):

  • 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#1376908)
  • 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#1376902)

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 5.0 for RHEL 7 x86_64

Fixes

  • BZ - 1375198 - CVE-2016-6662 mysql: general_log can write to configuration files, leading to privilege escalation
  • BZ - 1376902 - RHEL 7.3 upgrades fails on upgrade because of mariadb-libs package conflict.
  • BZ - 1376908 - mysqld service prevents haproxy to get started and deployment fails

CVEs

  • CVE-2016-6662

References

  • https://access.redhat.com/security/updates/classification/#important
Note: More recent versions of these packages may be available. Click a package name for more details.

Red Hat OpenStack 5.0 for RHEL 7

SRPM
mariadb-galera-5.5.42-1.2.el7ost.src.rpm SHA-256: 5f0266ea871089a6022ce1fda1310841197bc19eff93603ab478135983020379
x86_64
mariadb-galera-common-5.5.42-1.2.el7ost.x86_64.rpm SHA-256: 5f863f9113f3e5d49d44570440efdc95c3b514f6a594610968051131960eaf75
mariadb-galera-debuginfo-5.5.42-1.2.el7ost.x86_64.rpm SHA-256: 0244ee8039bc657e224ebc0390fff76fd7954187ef3bb0a4b18c5f70cc923442
mariadb-galera-server-5.5.42-1.2.el7ost.x86_64.rpm SHA-256: 6fa2e78eac02bfaa096c1bb64fc081dfee11f28bc74f79e179308b39f7fc0f00

The Red Hat security contact is secalert@redhat.com. More contact details at https://access.redhat.com/security/team/contact/.

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