Microsoft Windows Server 2003 SP2, Windows Vista SP2, Windows Server 2008 SP2 and R2 SP1, Windows 7 SP1, Windows 8, Windows 8.1, Windows Server 2012 Gold and R2, and Windows RT Gold and 8.1 do not properly initialize memory for rendering of malformed PNG images, which allows remote attackers to obtain sensitive information from process memory via a crafted web site, aka "Malformed PNG Parsing Information Disclosure Vulnerability."