Microsoft PowerPoint 2007 SP2 and 2010; Office 2004, 2008, and 2011 for Mac; Open XML File Format Converter for Mac; Office Compatibility Pack for Word, Excel, and PowerPoint 2007 File Formats SP2; PowerPoint Viewer; PowerPoint Viewer 2007 SP2; and PowerPoint Web App do not properly validate TimeColorBehaviorContainer Floating Point records in PowerPoint documents, which allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption) via a crafted document containing an invalid record, aka "Floating Point Techno-color Time Bandit RCE Vulnerability."
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A12624
https://docs.microsoft.com/en-us/security-updates/securitybulletins/2011/ms11-022
http://www.vupen.com/english/advisories/2011/0941