The ActionScript 2 virtual machine in Adobe Flash Player 10.x before 10.0.12.36 and 9.x before 9.0.151.0, and Adobe AIR before 1.5, does not verify a member element's size when performing (1) DefineConstantPool, (2) ActionJump, (3) ActionPush, (4) ActionTry, and unspecified other actions, which allows remote attackers to read sensitive data from process memory via a crafted PDF file.
http://www.securityfocus.com/archive/1/498561/100/0/threaded
http://www.isecpartners.com/advisories/2008-01-flash.txt
http://www.adobe.com/support/security/bulletins/apsb08-22.html
http://support.avaya.com/elmodocs2/security/ASA-2009-020.htm
http://securityreason.com/securityalert/4692
http://security.gentoo.org/glsa/glsa-200903-23.xml