Heap-based buffer overflow in the xjpegls.dll (aka JLS, JPEG-LS, or JPEG lossless) format plugin in XnView 1.99 and 1.99.1 allows remote attackers to execute arbitrary code via a crafted JLS image file.
Improper Restriction of Operations within the Bounds of a Memory Buffer The product performs operations on a memory buffer, but it reads from or writes to a memory location outside the buffer's intended boundary.