RHSA-2016:2749 - Security Advisory

Topic

An update for rh-mysql56-mysql is now available for Red Hat Software Collections.

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

MySQL is a multi-user, multi-threaded SQL database server. It consists of the MySQL server daemon, mysqld, and many client programs.

The following packages have been upgraded to a newer upstream version: rh-mysql56-mysql (5.6.34).

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)
• A race condition was found in the way MySQL performed MyISAM engine table repair. A database user with shell access to the server running mysqld could use this flaw to change permissions of arbitrary files writable by the mysql system user. (CVE-2016-6663, CVE-2016-5616)
• A flaw was found in the way the mysqld_safe script handled creation of error log file. The mysql operating system user could use this flaw to escalate their privileges to root. (CVE-2016-6664, CVE-2016-5617)
• This update fixes several vulnerabilities in the MySQL database server. Information about these flaws can be found on the Oracle Critical Patch Update Advisory pages, listed in the References section. (CVE-2016-3492, CVE-2016-5507, CVE-2016-5626, CVE-2016-5629, CVE-2016-8283)

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 MySQL server daemon (mysqld) will be restarted automatically.

Affected Products

• Red Hat Software Collections (for RHEL Server) 1 for RHEL 7.2 x86_64
• Red Hat Software Collections (for RHEL Server) 1 for RHEL 7.1 x86_64
• Red Hat Software Collections (for RHEL Server) 1 for RHEL 7 x86_64
• Red Hat Software Collections (for RHEL Server) 1 for RHEL 6.7 x86_64
• Red Hat Software Collections (for RHEL Server) 1 for RHEL 6 x86_64
• Red Hat Software Collections (for RHEL Workstation) 1 for RHEL 7 x86_64
• Red Hat Software Collections (for RHEL Workstation) 1 for RHEL 6 x86_64

Fixes

• BZ - 1375198 - CVE-2016-6662 mysql: general_log can write to configuration files, leading to privilege escalation (CPU Oct 2016)
• BZ - 1378936 - CVE-2016-6663 CVE-2016-5616 mysql: race condition while setting stats during MyISAM table repair (CPU Oct 2016)
• BZ - 1386554 - CVE-2016-3492 mysql: unspecified vulnerability in subcomponent: Server: Optimizer (CPU October 2016)
• BZ - 1386556 - CVE-2016-5507 mysql: unspecified vulnerability in subcomponent: Server: InnoDB (CPU October 2016)
• BZ - 1386564 - CVE-2016-6664 CVE-2016-5617 mysql: insecure error log file handling in mysqld_safe (CPU Oct 2016)
• BZ - 1386568 - CVE-2016-5626 mysql: unspecified vulnerability in subcomponent: Server: GIS (CPU October 2016)
• BZ - 1386572 - CVE-2016-5629 mysql: unspecified vulnerability in subcomponent: Server: Federated (CPU October 2016)
• BZ - 1386585 - CVE-2016-8283 mysql: unspecified vulnerability in subcomponent: Server: Types (CPU October 2016)

CVEs

• CVE-2016-3492
• CVE-2016-5507
• CVE-2016-5616
• CVE-2016-5617
• CVE-2016-5626
• CVE-2016-5629
• CVE-2016-6662
• CVE-2016-6663
• CVE-2016-6664
• CVE-2016-8283

References

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