Multiple heap-based buffer overflows in Mac OS X 10.4.6 and earlier allow remote attackers to cause a denial of service and possibly execute arbitrary code via the (1) PredictorVSetField function for TIFF or (2) CFAllocatorAllocate function for GIF, as used in applications that use ImageIO or AppKit. NOTE: the BMP vector has been re-assigned to CVE-2006-2238 because it affects a separate product family.
Heap-based buffer overflow in BOM BOMArchiveHelper 10.4 (6.3) Build 312, as used in Mac OS X 10.4.6 and earlier, allows user-assisted attackers to execute arbitrary code via a crafted archive (such as ZIP) that contains long path names, which triggers an error in the BOMStackPop function.
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").