A vulnerability was discovered in MariaDB and MySQL which may allow local users to gain root privileges.
|Package||dev-db/mariadb on all architectures|
|Affected versions||< 10.0.30-r1|
|Unaffected versions||>= 10.0.30-r1|
|Package||dev-db/mysql on all architectures|
|Affected versions||< 5.6.36-r1|
|Unaffected versions||>= 5.6.36-r1|
MySQL is a popular multi-threaded, multi-user SQL server. MariaDB is an enhanced, drop-in replacement for MySQL.
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.
A local attacker could escalate privileges to root.
There is no known workaround at this time.
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"