Unspecified vulnerability in Oracle SPARC Enterprise T & M Series Servers running Sun System Firmware before 6.7.13 for SPARC T1, 7.4.6.c for SPARC T2, 8.3.0.b for SPARC T3 & T4, 9.0.0.d for SPARC T5 and 9.0.1.e for SPARC M5 allows local users to affect availability via unknown vectors related to Sun System Firmware/Hypervisor.