Tom Ferris, a hacker and researcher from Mission Viejo, Calif., posted on his Web site Thursday evening information about seven separate security vulnerabilities he found in different Mac OS X digital image formats. Ferris included proof-of-concept exploit code for all of the flaws in his advisories, though he insists the code is little more than the most basic example to demonstrate precisely where the problems reside," reports Brian Krebs at The Washington Post.
"Ferris said he first notified Apple of the flaws in early January, and that Apple still is working on fixing at least seven other serious security bugs he found in iTunes and Quicktime after just a few hours of poking around the programs."
Comment: I have not heard of any of these exploits being exploited by hackers or malware writers, but it's a good idea to install Apple's fixes as they are released.