passwd in Directory Services in Mac OS X 10.3.x before 10.3.9 and 10.4.x before 10.4.5 allows local users to create arbitrary world-writable files as root by specifying an alternate file in the password database option.

passwd in Directory Services in Mac OS X 10.3.x before 10.3.9 and 10.4.x before 10.4.5 allows local users to overwrite arbitrary files via a symlink attack on the .pwtmp.[PID] temporary file.

Heap-based buffer overflow in LibSystem in Mac OS X 10.4 through 10.4.5 allows context-dependent attackers to execute arbitrary code by causing an application that uses LibSystem to request a large amount of memory.

Heap-based buffer overflow in rsync in Mac OS X 10.4 through 10.4.5 allows remote authenticated users to execute arbitrary code via long extended attributes.

Mac OS X 10.4.3 up to 10.4.6, when loginwindow uses the "Name and password" setting, and the "Show the Restart, Sleep, and Shut Down buttons" option is disabled, allows users with physical access to bypass login and reboot the system by entering ">restart", ">power", or ">shutdown" sequences after the username.

bzip2 allows remote attackers to cause a denial of service (hard drive consumption) via a crafted bzip2 file that causes an infinite loop (a.k.a "decompression bomb").