Red Hat Security Advisory: mariadb:10.11 security, bug fix, and enhancement update

Important

A flaw was found in MariaDB. During a State Snapshot Transfer (SST), the donor node improperly validates parameters sent by a joiner node. This vulnerability allows a malicious joiner to execute arbitrary shell commands on the donor server through the mariabackup SST method. This could lead to a complete compromise of the donor system.

CWE-78 - Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')

A flaw was found in MariaDB server. A user who has been granted EXECUTE access to a stored routine through a role can view the definition of that routine. This information disclosure occurs even if the user does not possess the `SHOW CREATE ROUTINE` privilege, potentially exposing sensitive routine logic. This vulnerability allows for unauthorized access to routine definitions.

CWE-266 - Incorrect Privilege Assignment

A flaw was found in MariaDB server. When the CONNECT engine is installed and REST support is enabled on Windows, a user can exploit improper sanitization of the table HTTP attribute. This attribute is interpolated into the curl command line, allowing for arbitrary shell command execution on the server.

CWE-78 - Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')

A flaw was found in MariaDB's mbstream utility. This vulnerability allows a highly privileged local attacker, who can provide a specially crafted archive, to create files outside of the intended target directory. This is due to mbstream not properly validating paths containing directory traversal sequences (e.g., "/../") during archive unpacking. Successful exploitation could lead to unauthorized file creation, potentially impacting system integrity or availability.

CWE-22 - Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

A flaw was found in MariaDB server. An application processing non-validated user input, which then uses `mysql_real_escape_string()` and sends data to the database via text protocol with the big5 character set, is vulnerable to SQL injection. This allows a remote attacker to execute malicious SQL commands, potentially leading to unauthorized data access or modification within the database.

CWE-89 - Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')

A flaw was found in MariaDB server. This vulnerability allows a low-privileged authenticated user to bypass a security control that normally restricts file operations. Specifically, the system failed to verify the necessary 'FILE' privilege when certain 'SELECT' statements, which write data to files, were executed with subqueries in their 'FROM' clause. This could enable an attacker to write unauthorized files to the server's file system, potentially leading to the disclosure of sensitive information or a denial of service by corrupting or filling disk space.

CWE-266 - Incorrect Privilege Assignment

A flaw was found in MariaDB server. During the State Snapshot Transfer (SST) process, a malicious joiner node could exploit improper parameter validation on the donor node. This vulnerability, specifically within the rsync SST method, allows the malicious joiner to execute arbitrary shell commands on the donor server, leading to potential compromise of the system.

CWE-78 - Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')