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* [gentoo-announce] [ GLSA 201711-04 ] MariaDB, MySQL: Root privilege escalation
@ 2017-11-10 22:47 99% Aaron Bauman
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From: Aaron Bauman @ 2017-11-10 22:47 UTC (permalink / raw
  To: gentoo-announce


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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?
=========

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