ImageMagick is "a suite of image manipulation tools (animate, composite, conjure, convert, display, identify, import, mogrify and montage) that are sometimes used by other applications for processing image files". Remote exploitation of multiple denial of service vulnerabilities in ImageMagick, as included in various vendors' operating system distributions, allows attackers to consume excessive CPU resources on the target system.
http://www.securiteam.com/unixfocus/5IP0L1FMKY.html
