A flaw was found in the PALM image coder at coders/palm.c where it makes an improper call to AcquireQuantumMemory() in the WritePALMImage() routine because it needs to be offset by 256. This issue causes an out-of-bounds read later on in the routine. The patch adds 256 to bytes_per_row in the call to AcquireQuantumMemory(). The highest threat from this vulnerability is to system availability.