Synopsis
Important: mysql security update
Type/Severity
Security Advisory: Important
Topic
An update for mysql is now available for Red Hat Enterprise Linux 6.
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 and libraries.
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)
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 Enterprise Linux Server 6 x86_64
-
Red Hat Enterprise Linux Server 6 i386
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Red Hat Enterprise Linux Workstation 6 x86_64
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Red Hat Enterprise Linux Workstation 6 i386
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Red Hat Enterprise Linux Desktop 6 x86_64
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Red Hat Enterprise Linux Desktop 6 i386
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Red Hat Enterprise Linux for IBM z Systems 6 s390x
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Red Hat Enterprise Linux for Power, big endian 6 ppc64
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Red Hat Enterprise Linux for Scientific Computing 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)
CVEs
References
Vulmon