CVE-2016-6663

moderate-risk

Published 2016-12-13

Race condition in Oracle MySQL before 5.5.52, 5.6.x before 5.6.33, 5.7.x before 5.7.15, and 8.x before 8.0.1; MariaDB before 5.5.52, 10.0.x before 10.0.28, and 10.1.x before 10.1.18; Percona Server before 5.5.51-38.2, 5.6.x before 5.6.32-78-1, and 5.7.x before 5.7.14-8; and Percona XtraDB Cluster before 5.5.41-37.0, 5.6.x before 5.6.32-25.17, and 5.7.x before 5.7.14-26.17 allows local users with certain permissions to gain privileges by leveraging use of my_copystat by REPAIR TABLE to repair a MyISAM table.

Do I need to act?

3.1% chance of exploitation in next 30 days

EPSS score — moderate exploit probability

Not on CISA KEV list

No confirmed active exploitation reported to CISA

1 public exploit available

40678

Patch status unknown

Check vendor advisories for fix availability and mitigation guidance

CVSS 7.0/10 High

LOCAL / HIGH complexity

Affected Products (5)

Mysql

Mariadb

Mysql

Percona Server

Xtradb Cluster

Affected Vendors

Percona Oracle Mariadb

References (48)

Third Party Advisory http://rhn.redhat.com/errata/RHSA-2016-2130.html

Third Party Advisory http://rhn.redhat.com/errata/RHSA-2016-2131.html

Third Party Advisory http://rhn.redhat.com/errata/RHSA-2016-2595.html

Third Party Advisory http://rhn.redhat.com/errata/RHSA-2016-2749.html

Third Party Advisory http://rhn.redhat.com/errata/RHSA-2016-2927.html

Third Party Advisory http://rhn.redhat.com/errata/RHSA-2016-2928.html

Third Party Advisory http://rhn.redhat.com/errata/RHSA-2017-0184.html

Mailing List http://seclists.org/fulldisclosure/2016/Nov/4

Mailing List http://www.openwall.com/lists/oss-security/2016/10/25/4

Patch http://www.oracle.com/technetwork/security-advisory/cpuoct2016-2881722.html

Third Party Advisory http://www.securityfocus.com/bid/92911

Third Party Advisory http://www.securityfocus.com/bid/93614

Issue Tracking https://dev.mysql.com/doc/relnotes/mysql/5.5/en/news-5-5-52.html

Issue Tracking https://dev.mysql.com/doc/relnotes/mysql/5.6/en/news-5-6-33.html

Issue Tracking https://dev.mysql.com/doc/relnotes/mysql/5.7/en/news-5-7-15.html

Issue Tracking https://dev.mysql.com/doc/relnotes/mysql/8.0/en/news-8-0-1.html

Issue Tracking https://github.com/MariaDB/server/commit/347eeefbfc658c8531878218487d729f4e02080...

Issue Tracking https://github.com/mysql/mysql-server/commit/4e5473862e6852b0f3802b0cd0c6fa10b52...

Exploit https://legalhackers.com/advisories/MySQL-Maria-Percona-PrivEscRace-CVE-2016-666...

Release Notes https://mariadb.com/kb/en/mariadb/mariadb-10028-release-notes/

and 28 more references

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moderate-risk

Severity 18/34 · Moderate

Exploitability 6/34 · Minimal

Exposure 12/34 · Low