3DS Userland Flaws

This page lists vulnerabilities / exploits for 3DS applications and applets. Exploiting these initially results in ROP.

Non-system applications

Application name	Summary	Description	Fixed in version	Last version this flaw was checked for	Timeframe this was discovered	Discovered by
The Legend of Zelda: Ocarina of Time 3D	UTF-16 name string buffer overflow via unchecked u8 length field	The u8 at offfset 0x2C in the savefile is the character-length of the UTF-16 string at offset 0x1C. When copying this string, it's essentially a memory-copy with lenval*2, not a string-copy. This can be used to trigger buffer overflows at various locations depending on the string length. Length value>=0xCD causes a crash while loading the saveslot, via a heap buffer overflow. When value is >=0x6E it crashes when saving the saveslot. With value >=0x9A, it crashes via stack-smash in-game once any dialogs are opened(touching buttons on the touch-screen to enter certain menu(s) can trigger it too).	None		Around October 22, 2012	Yellows8
Cubic Ninja	Map-data stack smash	See here regarding Ninjhax.	None		July 2014	smea

System applications

Summary	Description	Fixed in version	Last version this flaw was checked for	Timeframe this was discovered	Discovered by
3DS System Settings DS profile string stack-smash	Too long or corrupted strings (01Ah 2 Nickname length in characters 050h 2 Message length in characters) in the NVRAM DS user settings (System Settings->Other Settings->Profile->Nintendo DS Profile) cause it to crash in 3DS-mode due to a stack-smash. The DSi is not vulnerable to this, DSi launcher(menu) and DSi System Settings will reset the NVRAM user-settings if the length field values are too long(same result as when the CRCs are invalid). TWL_FIRM also resets the NVRAM user-settings when the string-length(s) are too long.	7.0.0-13	7.0.0-13	2012	Ichfly