Use-after-free vulnerability in Adobe Photoshop CS5 12.x before 12.0.5 and CS5.1 12.1.x before 12.1.1 allows remote attackers to execute arbitrary code via a crafted TIFF (aka .TIF) file.
http://www.securityfocus.com/bid/52634
http://www.adobe.com/support/security/bulletins/apsb12-11.html