Buffer overflow in Adobe Reader 9.0 and earlier and Acrobat 9.0 and earlier allows remote attackers to execute arbitrary code via a crafted PDF document, related to a non-JavaScript function call, as exploited in the wild in February 2009 by Trojan.Pidief.E.

More... (http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2009-0658)