Integer Overflow or Wraparound
Integer overflow in the read_channel_data function in plug-ins/file-psd/psd-load.c in GIMP 2.6.7 might allow remote attackers to execute arbitrary code via a crafted PSD file that triggers a heap-based buffer overflow.
CWE-190 - Integer Overflow or Wraparound
The software performs a calculation that can produce an integer overflow or wraparound, when the logic assumes that the resulting value will always be larger than the original value. This can introduce other weaknesses when the calculation is used for resource management or execution control.