CVE-2017-13253

This exploit demonstrates a heap overflow vulnerability in the Android media.drm service (CVE-2017-13253) by manipulating memory buffers during a decrypt operation. The PoC triggers the overflow by setting up a source and destination buffer with overlapping regions, leading to potential arbitrary code execution.

This PoC demonstrates a buffer overflow vulnerability (CVE-2017-13253) in Android's DRM services (8.0-8.1 pre-March 2018) by exploiting a heap overflow in the `decrypt` method of the ClearKey DRM plugin. The exploit triggers a segmentation fault by overwriting protected memory, with outcomes varying based on vendor implementation and patch status.

This PoC demonstrates a heap overflow vulnerability in Android's ClearKey DRM module (CVE-2017-13253) by creating overlapping memory regions and triggering a decryption operation that leads to a buffer overflow. The exploit targets the `media.drm` service and manipulates memory allocations to achieve the overflow.