media/libmedia/IOMX.cpp in mediaserver in Android 6.x before 2016-04-01 does not initialize certain metadata buffer pointers, which allows attackers to obtain sensitive information from process memory, and consequently bypass an unspecified protection mechanism, via unspecified vectors, as demonstrated by obtaining Signature or SignatureOrSystem access, aka internal bug 26324358.
The product performs operations on a memory buffer, but it reads from or writes to a memory location outside the buffer's intended boundary. This may result in read or write operations on unexpected memory locations that could be linked to other variables, data structures, or internal program data.
| Link | Tags |
|---|---|
| https://android.googlesource.com/platform/frameworks/av/+/8d87321b704cb3f88e8cae668937d001fd63d5e3 | vendor advisory |
| http://source.android.com/security/bulletin/2016-04-02.html | vendor advisory |