MySQL MaxDB 7.5.00 for Windows, and possibly earlier versions and other platforms, allows remote attackers to cause a denial of service (application crash) via invalid parameters to the (1) DBMCli_String::ReallocString, (2) DBMCli_String::operator, (3) DBMCli_Buffer::ForceResize, (4) DBMCli_Wizard::InstallDatabase, (5) DBMCli_Devspaces::Complete, (6) DBMWeb_TemplateWizard::askForWriteCountStep5, or (7) DBMWeb_DBMWeb::wizardDB functions, which triggers a null dereference.