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Gentoo Linux Security Advisory GLSA 201711-04

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https://security.gentoo.org/

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Severity: Normal

Title: MariaDB, MySQL: Root privilege escalation

Date: November 10, 2017

Bugs: #635704, #635706

ID: 201711-04

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Synopsis

========

A vulnerability was discovered in MariaDB and MySQL which may allow

local users to gain root privileges.

Background

==========

MySQL is a popular multi-threaded, multi-user SQL server. MariaDB is an

enhanced, drop-in replacement for MySQL.

Affected packages

=================

-------------------------------------------------------------------

Package / Vulnerable / Unaffected

-------------------------------------------------------------------

1 dev-db/mariadb < 10.0.30-r1 >= 10.0.30-r1

2 dev-db/mysql < 5.6.36-r1 >= 5.6.36-r1

-------------------------------------------------------------------

2 affected packages

Description

===========

The Gentoo installation scripts before 2017-09-29 have chown calls for

user-writable directory trees, which allows local users to gain

privileges by leveraging access to the mysql account for creation of a

link.

Impact

======

A local attacker could escalate privileges to root.

Workaround

==========

There is no known workaround at this time.

Resolution

==========

All MariaDB users should upgrade to the latest version:

# emerge --sync

# emerge --ask --oneshot --verbose ">=dev-db/mariadb-10.0.30-r1"

All MySQL users should upgrade to the latest version:

# emerge --sync

# emerge --ask --oneshot --verbose ">=dev-db/mysql-5.6.36-r1"

References

==========

[ 1 ] CVE-2017-15945

https://nvd.nist.gov/nvd.cfm?cvename=CVE-2017-15945

Availability

============

This GLSA and any updates to it are available for viewing at

the Gentoo Security Website:

https://security.gentoo.org/glsa/201711-04

Concerns?

=========

Security is a primary focus of Gentoo Linux and ensuring the

confidentiality and security of our users' machines is of utmost

importance to us. Any security concerns should be addressed to

security@gentoo.org or alternatively, you may file a bug at

https://bugs.gentoo.org.

License

=======

Copyright 2017 Gentoo Foundation, Inc; referenced text

belongs to its owner(s).

The contents of this document are licensed under the

Creative Commons - Attribution / Share Alike license.

http://creativecommons.org/licenses/by-sa/2.5