The SoftMPEG4 component in libstagefright in mediaserver 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 2016-10-01, and 7.0 before 2016-10-01 allows attackers to gain privileges via a crafted application, aka internal bug 30033990.
https://android.googlesource.com/platform/frameworks/av/+/d4271b792bdad85a80e2b83ab34c4b30b74f53ec
https://android.googlesource.com/platform/frameworks/av/+/c48ef757cc50906e8726a3bebc3b60716292cdba