A flaw was found in the way MariaDB and MySQL set permissions for named pipes when running on the Microsoft Windows platform. A local attacker could use this flaw to perform a man-in-the-middle attack against local client to server connections over the named pipes. Note that this issue did not affect MariaDB or MySQL running on Linux. MariaDB upstream bug and fix: https://jira.mariadb.org/browse/MDEV-24040 https://github.com/MariaDB/server/commit/3829b408d6 Additional information can be found in the "Man-in-the-Machine: Exploiting Ill-Secured Communication Inside the Computer" paper, section 7.1: https://www.usenix.org/system/files/conference/usenixsecurity18/sec18-bui.pdf
Statement: This issue did not affect any version of MariaDB or MySQL as included in Red Hat products, as it only affected the versions of MariaDB or MySQL running on the Microsoft Windows platform.