Stack-based buffer overflow in telnet in Apple Mac OS X 10.4.11 and 10.5 before 10.5.7 allows remote attackers to execute arbitrary code or cause a denial of service (application crash) via a long hostname for a telnet server.

Integer underflow in CoreGraphics in Apple Mac OS X 10.5 before 10.5.7, iPhone OS 1.0 through 2.2.1, and iPhone OS for iPod touch 1.1 through 2.2.1 allows remote attackers to execute arbitrary code or cause a denial of service (application crash) via a crafted PDF file that triggers a heap-based buffer overflow.

Launch Services in Apple Mac OS X 10.4.11 and 10.5 before 10.5.7 allows remote attackers to cause a denial of service (persistent Finder crash) via a crafted Mach-O executable that triggers an out-of-bounds memory read.

Apple Mac OS X 10.4.11 and 10.5 before 10.5.7 allows local users to gain privileges or cause a denial of service (application crash) by attempting to mount a crafted sparse disk image that triggers memory corruption.

Heap-based buffer overflow in CFNetwork in Apple Mac OS X 10.5 before 10.5.7 allows remote web servers to execute arbitrary code or cause a denial of service (application crash) via long HTTP headers.

The Microsoft Office Spotlight Importer in Spotlight in Apple Mac OS X 10.4.11 and 10.5 before 10.5.7 does not properly validate Microsoft Office files, which allows remote attackers to execute arbitrary code or cause a denial of service (application crash) via a file that triggers memory corruption.

Help Viewer in Apple Mac OS X 10.4.11 and 10.5 before 10.5.7 does not verify that certain Cascading Style Sheets (CSS) are located in a registered help book, which allows remote attackers to execute arbitrary code via a help: URL that triggers invocation of AppleScript files.

Array index error in the xnu (Mach) kernel in Apple Mac OS X 10.5 before 10.5.7 allows local users to gain privileges or cause a denial of service (system shutdown) via unspecified vectors related to workqueues.

Multiple integer overflows in FreeType 2.3.9 and earlier allow remote attackers to execute arbitrary code via vectors related to large values in certain inputs in (1) smooth/ftsmooth.c, (2) sfnt/ttcmap.c, and (3) cff/cffload.c.

XNU 1228.9.59 and earlier on Apple Mac OS X 10.5.6 and earlier does not properly restrict interaction between user space and the HFS IOCTL handler, which allows local users to overwrite kernel memory and gain privileges by attaching an HFS+ disk image and performing certain steps involving HFS_GET_BOOT_INFO fcntl calls.