This package uses eclasses which were vulnerable to root privilege escalation via "chown", see bug 630822 for details. The eclasses were fixed, however a rev bump is required to ensure that the vulnerability is completely removed.
The bug has been referenced in the following commit(s):
Author: Thomas Deutschmann <email@example.com>
AuthorDate: 2017-10-28 18:05:54 +0000
Commit: Thomas Deutschmann <firstname.lastname@example.org>
CommitDate: 2017-10-28 18:10:50 +0000
dev-db/mariadb: Rev bump to fix CVE-2017-15945
Package-Manager: Portage-2.3.13, Repoman-2.3.4
dev-db/mariadb/mariadb-10.0.30-r1.ebuild | 212 ++++++++++++++++++++++++++++
dev-db/mariadb/mariadb-10.0.32-r1.ebuild | 209 ++++++++++++++++++++++++++++
dev-db/mariadb/mariadb-10.1.24-r1.ebuild | 227 ++++++++++++++++++++++++++++++
dev-db/mariadb/mariadb-10.1.26-r1.ebuild | 228 +++++++++++++++++++++++++++++++
4 files changed, 876 insertions(+)}
All done, repository is clean.
New GLSA request filed.
This issue was resolved and addressed in
GLSA 201711-04 at https://security.gentoo.org/glsa/201711-04
by GLSA coordinator Aaron Bauman (b-man).