Stack-based buffer overflow in AppKit in Apple Mac OS X 10.4.11 allows user-assisted remote attackers to cause a denial of service (application termination) and execute arbitrary code via a crafted PostScript Printer Description (PPD) file that is not properly handled when querying a network printer.

More... (http://nvd.nist.gov/nvd.cfm?cvename=CVE-2008-0997)