An issue was discovered in the portaudio-rs crate through 0.3.1 for Rust. There is a use-after-free with resultant arbitrary code execution because of a lack of unwind safety in stream_callback and stream_finished_callback.

Affected: crates.io: portaudio-rs

Affected versions of this crate is not panic safe within callback functions stream_callback and stream_finished_callback. The call to user-provided closure might panic before a mem::forget call, which then causes a use after free that grants attacker to control the callback function pointer. This allows an attacker to construct an arbitrary code execution .

Affected: crates.io: portaudio-rs

Affected versions of this crate is not panic safe within callback functions `stream_callback` and `stream_finished_callback`.

The call to user-provided closure might panic before a `mem::forget` call, which then causes a use after free that grants attacker to control the callback function pointer.

This allows an attacker to construct an arbitrary code execution . The flaw was reported by Phosphorus15.