Overview
This report presents an analysis of the CVE-2025-57616 vulnerability, a serious issue discovered in rust-ffmpeg 0.3.0. This vulnerability targets a widely used open-source library, rust-ffmpeg, potentially posing a significant threat to systems using the library. The problem arises due to a use-after-free issue in the write_interleaved method, potentially opening systems to denial-of-service attacks and memory corruption.
Vulnerability Summary
CVE ID: CVE-2025-57616
Severity: High (7.5)
Attack Vector: Remote
Privileges Required: None
User Interaction: None
Impact: Potential system compromise or data leakage
Affected Products
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Product | Affected Versions
Rust-ffmpeg | 0.3.0
How the Exploit Works
The vulnerability exploits a use-after-free issue in the write_interleaved method of the rust-ffmpeg library. This is due to the method violating Rust’s aliasing rules by altering a data structure through a mutable pointer while solely holding an immutable reference. As a result, an attacker can remotely trigger undefined behavior when the data is accessed later, leading to potential denial of service or memory corruption.
Conceptual Example Code
An attacker might exploit the vulnerability by sending a specially crafted payload that triggers the use-after-free condition in the write_interleaved method. A simplified, conceptual example might look like this:
let mut data = Some(Data::new());
let reference = &data;
let pointer = &mut data;
// Trigger use-after-free issue
drop(reference);
write_interleaved(pointer, payload);In this conceptual example, dropping the reference while still having a mutable pointer leads to a use-after-free condition when the write_interleaved method is called. This undefined behavior can lead to memory corruption or a denial of service, depending on the attacker’s payload and the system’s state.