The Bitmap parsing component in rt3d.dll in Adobe Reader and Acrobat 10.x before 10.0.1, 9.x before 9.4.2, and 8.x before 8.2.6 on Windows and Mac OS X allow remote attackers to execute arbitrary code via a crafted image that causes an invalid pointer calculation related to 4/8-bit RLE compression, a different vulnerability than CVE-2011-0596, CVE-2011-0598, and CVE-2011-0602.