The ARM prefetch abort handler in the kernel in Apple iOS before 6.1.3 and Apple TV before 5.2.1 does not ensure that it has been invoked in an abort context, which makes it easier for local users to bypass the ASLR protection mechanism via crafted code.

dyld in Apple iOS before 6.1.3 and Apple TV before 5.2.1 does not properly manage the state of file loading for Mach-O executable files, which allows local users to bypass intended code-signing requirements via a file that contains overlapping segments.

The kernel in Apple iOS before 6.1 and Apple TV before 5.2 does not properly validate copyin and copyout arguments, which allows local users to bypass intended pointer restrictions and access locations in the first kernel-memory page by specifying a length of less than one page.

The stateless address autoconfiguration (aka SLAAC) functionality in the IPv6 networking implementation in Apple iOS before 4.3 and Apple TV before 4.2 places the MAC address into the IPv6 address, which makes it easier for remote IPv6 servers to track users by logging source IPv6 addresses.

Wi-Fi in Apple iOS before 4.3 and Apple TV before 4.2 does not properly perform bounds checking for Wi-Fi frames, which allows remote attackers to cause a denial of service (device reset) via unspecified traffic on the local wireless network.

Buffer overflow in the Mac_Read_POST_Resource function in base/ftobjs.c in FreeType before 2.4.2 allows remote attackers to cause a denial of service (memory corruption and application crash) or possibly execute arbitrary code via a crafted Adobe Type 1 Mac Font File (aka LWFN) font.

FreeType before 2.4.2 uses incorrect integer data types during bounds checking, which allows remote attackers to cause a denial of service (application crash) or possibly execute arbitrary code via a crafted font file.

Array index error in the t42_parse_sfnts function in type42/t42parse.c in FreeType before 2.4.2 allows remote attackers to cause a denial of service (application crash) or possibly execute arbitrary code via negative size values for certain strings in FontType42 font files, leading to a heap-based buffer overflow.

The FT_Stream_EnterFrame function in base/ftstream.c in FreeType before 2.4.2 does not properly validate certain position values, which allows remote attackers to cause a denial of service (application crash) or possibly execute arbitrary code via a crafted font file.

Memory leak in pngrutil.c in libpng before 1.2.44, and 1.4.x before 1.4.3, allows remote attackers to cause a denial of service (memory consumption and application crash) via a PNG image containing malformed Physical Scale (aka sCAL) chunks.