Solution : https://service.sap.com/sap/support/notes/674943 (SAP Service marketplace login required)
Key words :
-> binary patches -> sap suswps, symptom sus wps sp02, sus-specific user management, menu option 'sap srm, sap user management engine, sap service marketplace, supplier relationship management, sap j2ee engine, sp02 patch level 2, software deployment manager