Pro-face WinGP PC Runtime 3.1.00 and earlier, and ProServr.exe in Pro-face Pro-Server EX 1.30.000 and earlier, does not properly check packet sizes before reusing packet memory buffers, which allows remote attackers to cause a denial of service (heap memory corruption) or possibly have unspecified other impact via a short crafted packet with a certain opcode.
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.