mysql_install_db in MariaDB 10.4.7 through 10.4.11 allows privilege escalation from the mysql user account to root because chown and chmod are performed unsafely, as demonstrated by a symlink attack on a chmod 04755 of auth_pam_tool_dir/auth_pam_tool. NOTE: this does not affect the Oracle MySQL product, which implements mysql_install_db differently.
| Product | Vendor | Version |
|---|---|---|
| n/a | n/a | < c99769bceab4ecb6a067b9af11f9db281eea3e2a |
| n/a | n/a | < 5.15 |