Multiple buffer overflows in Computer Associates (CA) BrightStor ARCserve Backup 9.01 through 11.5, Enterprise Backup 10.5, and CA Server/Business Protection Suite r2 allow remote attackers to execute arbitrary code via RPC requests with crafted data for opnums (1) 0x2F and (2) 0x75 in the (a) Message Engine RPC service, or opnum (3) 0xCF in the Tape Engine service.
The product performs operations on a memory buffer, but it reads from or writes to a memory location outside the buffer's intended boundary. This may result in read or write operations on unexpected memory locations that could be linked to other variables, data structures, or internal program data.