Sandboxie is a sandbox-based isolation software for 32-bit and 64-bit Windows NT-based operating systems. Starting in version 1.3.0 and prior to 1.15.12, API_GET_SECURE_PARAM has an arithmetic overflow leading to a small memory allocation and then a extremely large copy into the small allocation. Version 1.15.12 fixes the issue.
The product copies an input buffer to an output buffer without verifying that the size of the input buffer is less than the size of the output buffer, leading to a buffer overflow.