MariaDB CONNECT Storage Engine Format String Privilege Escalation Vulnerability. This vulnerability allows local attackers to escalate privileges on affected installations of MariaDB. Authentication is required to exploit this vulnerability. The specific flaw exists within the processing of SQL queries. The issue results from the lack of proper validation of a user-supplied string before using it as a format specifier. An attacker can leverage this vulnerability to escalate privileges and execute arbitrary code in the context of the service account. Was ZDI-CAN-16193.
The product uses a function that accepts a format string as an argument, but the format string originates from an external source.
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Mariadb | Mariadb | 10.2.0 (including) | 10.2.42 (excluding) |
| Mariadb | Mariadb | 10.3.0 (including) | 10.3.33 (excluding) |
| Mariadb | Mariadb | 10.4.0 (including) | 10.4.23 (excluding) |
| Mariadb | Mariadb | 10.5.0 (including) | 10.5.14 (excluding) |
| Mariadb | Mariadb | 10.6.0 (including) | 10.6.6 (excluding) |
| Mariadb | Mariadb | 10.7.0 (including) | 10.7.2 (excluding) |
| Mariadb | Mariadb | 10.8.0 (including) | 10.8.0 (including) |
| Red Hat Enterprise Linux 8 | RedHat | mariadb:10.5-8060020220614163302.ad008a3a | * |
| Red Hat Enterprise Linux 8 | RedHat | mariadb:10.3-8060020220715055054.ad008a3a | * |
| Red Hat Enterprise Linux 9 | RedHat | mariadb-3:10.5.16-2.el9_0 | * |
| Red Hat Software Collections for Red Hat Enterprise Linux 7 | RedHat | rh-mariadb105-mariadb-3:10.5.16-2.el7 | * |
| Red Hat Software Collections for Red Hat Enterprise Linux 7 | RedHat | rh-mariadb103-mariadb-3:10.3.35-1.el7 | * |
| Mariadb-10.0 | Ubuntu | trusty | * |
| Mariadb-10.0 | Ubuntu | xenial | * |
| Mariadb-10.1 | Ubuntu | bionic | * |
| Mariadb-10.1 | Ubuntu | trusty | * |
| Mariadb-10.1 | Ubuntu | xenial | * |
| Mariadb-10.3 | Ubuntu | focal | * |
| Mariadb-10.3 | Ubuntu | trusty | * |
| Mariadb-10.3 | Ubuntu | xenial | * |
| Mariadb-10.5 | Ubuntu | impish | * |
| Mariadb-10.5 | Ubuntu | trusty | * |
| Mariadb-10.5 | Ubuntu | xenial | * |
| Mariadb-10.6 | Ubuntu | kinetic | * |
| Mariadb-10.6 | Ubuntu | lunar | * |
| Mariadb-10.6 | Ubuntu | trusty | * |
| Mariadb-10.6 | Ubuntu | xenial | * |
| Mariadb-5.5 | Ubuntu | trusty | * |
| Mariadb-5.5 | Ubuntu | xenial | * |
When an attacker can modify an externally-controlled format string, this can lead to buffer overflows, denial of service, or data representation problems. It should be noted that in some circumstances, such as internationalization, the set of format strings is externally controlled by design. If the source of these format strings is trusted (e.g. only contained in library files that are only modifiable by the system administrator), then the external control might not itself pose a vulnerability.