Critical flaws haunt Adobe PDF Reader, Acrobat

Adobe dropped a bumper patch for its PDF Reader and Acrobat today to fix 15 documented security holes that expose Windows, Mac and UNIX users to malicious hacker attacks.
The update is rated “critical” because of the risk of remote code execution attacks via rigged PDF files.
According to an advisory from Adobe, the vulnerabilities affect Adobe Reader 9.3.1 (and earlier versions) for Windows, Macintosh, and UNIX, Adobe Acrobat 9.3.1 (and earlier versions) for Windows and Macintosh, and Adobe Reader 8.2.1 (and earlier versions) and Adobe Acrobat 8.2.1 (and earlier versions) for Windows and Macintosh.

http://blogs.zdnet.com/security/?p=6135&tag=content;col2