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===================================================================== Red Hat Security Advisory
Synopsis: Important: mariadb-galera security and bug fix update Advisory ID: RHSA-2016:2061-01 Product: Red Hat Enterprise Linux OpenStack Platform Advisory URL: https://rhn.redhat.com/errata/RHSA-2016-2061.html Issue date: 2016-10-13 CVE Names: CVE-2016-6662 =====================================================================
1. Summary:
An update for mariadb-galera is now available for Red Hat Enterprise Linux OpenStack Platform 7.0 (Kilo) 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.
2. Relevant releases/architectures:
Red Hat Enterprise Linux OpenStack Platform 7.0 (Kilo) for RHEL 7 - x86_64
3. 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#1376904)
* 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#1376910)
4. 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.
5. Bugs fixed (https://bugzilla.redhat.com/):
1375198 - CVE-2016-6662 mysql: general_log can write to configuration files, leading to privilege escalation 1376904 - RHEL 7.3 upgrades fails on upgrade because of mariadb-libs package conflict. 1376910 - mysqld service prevents haproxy to get started and deployment fails
6. Package List:
Red Hat Enterprise Linux OpenStack Platform 7.0 (Kilo) for RHEL 7:
Source: mariadb-galera-5.5.42-5.el7ost.src.rpm
x86_64: mariadb-galera-common-5.5.42-5.el7ost.x86_64.rpm mariadb-galera-debuginfo-5.5.42-5.el7ost.x86_64.rpm mariadb-galera-server-5.5.42-5.el7ost.x86_64.rpm
These packages are GPG signed by Red Hat for security. Our key and details on how to verify the signature are available from https://access.redhat.com/security/team/key/
7. References:
https://access.redhat.com/security/cve/CVE-2016-6662 https://access.redhat.com/security/updates/classification/#important
8. Contact:
The Red Hat security contact is <secalert@redhat.com>. More contact details at https://access.redhat.com/security/team/contact/
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