Use-after-free vulnerability in the Doc.media.newPlayer method in Multimedia.api in Adobe Reader and Acrobat 9.x before 9.3, and 8.x before 8.2 on Windows and Mac OS X, allows remote attackers to execute arbitrary code via a crafted PDF file using ZLib compressed streams, as exploited in the wild in December 2009.

Multiple Adobe products, including (1) Photoshop CS2, (2) Illustrator CS2, and (3) Adobe Help Center, install a large number of .EXE and .DLL files with write-access permission for the Everyone group, which allows local users to gain privileges via Trojan horse programs.