From Homeland Security US-CERT:
National Cyber Awareness System:
05/04/2016 07:21 PM EDT
Original release date: May 04, 2016
ImageMagick, an open-source image processing software suite, has released versions 7.0.1-1 and 6.9.3-10 to address a vulnerability in previous software versions. Exploitation of this vulnerability may allow an attacker to take control of an affected system.
Users and administrators are encouraged to review the article ImageMagick Security Issue and the Openwall Security Blog for more information and apply the ImageMagick updates.