Use-after-free vulnerability in Microsoft Excel 2003 SP3, 2007 SP2 and SP3, and 2010 SP1, and Office 2008 and 2011 for Mac, allows remote attackers to execute arbitrary code via a crafted spreadsheet, aka "Excel SST Invalid Length Use After Free Vulnerability."
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A15970
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A15717
https://exchange.xforce.ibmcloud.com/vulnerabilities/78074
https://docs.microsoft.com/en-us/security-updates/securitybulletins/2012/ms12-076
http://www.us-cert.gov/cas/techalerts/TA12-318A.html