LibUtils in Android 4.x before 4.4.4, 5.0.x before 5.0.2, 5.1.x before 5.1.1, 6.x before 2016-09-01, and 7.0 before 2016-09-01 mishandles conversions between Unicode character encodings with different encoding widths, which allows remote attackers to execute arbitrary code or cause a denial of service (heap-based buffer overflow) via a crafted file, aka internal bug 29250543.
source.android.com/security/bulletin/2016-09-01.html
www.securityfocus.com/bid/92811
www.securitytracker.com/id/1036763
android.googlesource.com/platform/frameworks/av/+/3944c65637dfed14a5a895685edfa4bacaf9f76e
android.googlesource.com/platform/frameworks/base/+/866dc26ad4a98cc835d075b627326e7d7e52ffa1
android.googlesource.com/platform/frameworks/native/+/1f4b49e64adf4623eefda503bca61e253597b9bf
android.googlesource.com/platform/system/core/+/ecf5fd58a8f50362ce9e8d4245a33d56f29f142b
www.exploit-db.com/exploits/40354/