'A member of an XDA developers forum who calls him-or-herself alephzain claims to have found a flaw in several Samsung handsets and tablets that could allow attackers to enjoy access to their RAM'
Devices in trouble are said to include the Galaxy SIII, Galaxy Note, Galaxy Note 2 and Galaxy 10.1 tablets.
http://www.theregister.co.uk/2012/12/17/samsung_exynos_flaw/