The SpreadSheet Lotus 123 reader (wkssr.dll) in Autonomy KeyView 10.4 and 10.9, as used in multiple IBM, Symantec, and other products, allows remote attackers to execute arbitrary code via unspecified vectors related to allocation of an array of pointers and "string indexing," which triggers memory corruption.
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.