Multiple stack-based buffer overflows in Intel Alert Management System (aka AMS or AMS2), as used in Symantec AntiVirus Corporate Edition (SAVCE) 10.x before 10.1 MR10, Symantec System Center (SSC) 10.x, and Symantec Quarantine Server 3.5 and 3.6, allow remote attackers to execute arbitrary code via (1) a long string to msgsys.exe, related to the AMSSendAlertAct function in AMSLIB.dll in the Intel Alert Handler service (aka Symantec Intel Handler service); a long (2) modem string or (3) PIN number to msgsys.exe, related to pagehndl.dll in the Intel Alert Handler service; or (4) a message to msgsys.exe, related to iao.exe in the Intel Alert Originator 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.