Astra Linux – Vulnerability in imagemagick

The PALM image coder in coders/palm.c makes an improper call to AcquireQuantumMemory in the routine WritePALMImage. This call requires an offset of 256 bytes. This could lead to a out-of-bounds read later in the routine. The patch adds 256 bytes to bytesperrow in the call to AcquireQuantumMemory...