Adobe Reader and Acrobat 9.x before 9.3.3, and 8.x before 8.2.3 on Windows and Mac OS X, dereference a heap object after this object's deletion, which allows attackers to execute arbitrary code via unspecified vectors.
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A7188
http://www.vupen.com/english/advisories/2010/1636
http://www.securitytracker.com/id?1024159
http://www.securityfocus.com/bid/41244
http://www.adobe.com/support/security/bulletins/apsb10-15.html