logo
DATABASE RESOURCES PRICING ABOUT US

MySQL User Defined Function Detected

Description

User-defined functions in MySQL can allow a database user to load binary libraries. The insert privilege on the table '/mysql.func' is required for a user to create user-defined functions. It was confirmed that MySQL on the Windows platform (and possibly other platforms, though unverified) is potentially impacted by the following vulnerabilities: - If an invalid library is requested the Windows function 'LoadLibraryEx' will block processing until an error dialog box is acknowledged on the server. It is not likely that non-Windows systems are affected by this particular issue. - MySQL requires that user-defined libraries contain functions with names fitting the formats: 'XXX_deinit' or 'XXX_init'. However, other libraries are known to contain functions fitting these formats and, when called upon, can cause application crashes, memory corruption and stack pollution.


Related