Integer overflow in Google Picasa before 3.9.140 Build 259 allows remote attackers to execute arbitrary code via the CAMF section in a FOVb image, which triggers a heap-based buffer overflow.
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.