Buffer overflow in compface 1.5.2 and earlier allows user-assisted attackers to cause a denial of service (crash) via a long declaration in a .xbm file. NOTE: this issue only affects compface on distributions that used a certain patch.
The product performs operations on a memory buffer, but it reads from or writes to a memory location outside the buffer's intended boundary. This may result in read or write operations on unexpected memory locations that could be linked to other variables, data structures, or internal program data.