Multiple heap-based buffer overflows in XnView before 1.99 allow remote attackers to cause a denial of service (application crash) and possibly execute arbitrary code via a (1) SGI32LogLum compressed TIFF image or (2) SGI32LogLum compressed TIFF image with the PhotometricInterpretation encoding set to LogL.
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.