Apple has released the Mac OS X 10.5.6 update, closing 21 holes in the operating system. The security content notes for 10.5.6 lists all the issues resolved including fixes for the Adobe Flash Player Plug-in.

Other fixes outside the browser include, blocking a denial of service when viewing PDF documents with manipulated fonts, a heap buffer overflow in CoreGraphics, an infinite loop which could lead to crashing when dynamic libraries were mounted over NFS, integer overflows in strfmon and systems shut-downs when maliciously crafted ISO files were mounted.