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CVE-2025-57612: Null Pointer Dereference Vulnerability in Rust-ffmpeg 0.3.0

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Overview

The following report discusses a critical vulnerability discovered in rust-ffmpeg 0.3.0. This vulnerability, designated as CVE-2025-57612, allows an attacker to induce a denial of service (DoS) by exploiting a null pointer dereference issue. Entities that rely on this software for multimedia processing are potentially at risk, and the potential for system compromise or data leakage makes this issue highly significant.

Vulnerability Summary

CVE ID: CVE-2025-57612
Severity: High (CVSS:7.5)
Attack Vector: Remote
Privileges Required: None
User Interaction: None
Impact: System compromise, potential data leakage

Affected Products

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Product | Affected Versions

rust-ffmpeg | 0.3.0 (after commit 5ac0527)

How the Exploit Works

The vulnerability stems from a null pointer dereference in the `name()` method of rust-ffmpeg 0.3.0. This method fails to handle NULL return values from the `av_get_sample_fmt_name()` C function properly. By providing an unrecognized sample format, an attacker can trigger this vulnerability and cause a DoS condition.

Conceptual Example Code

Below is a conceptual example of how the vulnerability might be exploited using a malformed multimedia file:

use std::process::Command;
use rust_ffmpeg::format::input;
let mut file = input("malformed_file.ff").unwrap();
let stream = file.streams().best_audio().unwrap();
let codec = stream.codec().unwrap();
// Triggering the vulnerability
let name = codec.sample_fmt().name().unwrap();

In the above pseudocode, `malformed_file.ff` is a file with an unrecognized sample format. When processed, it causes the `name()` method to encounter a NULL value, triggering a DoS condition.

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Disclaimer:

The information and code presented in this article are provided for educational and defensive cybersecurity purposes only. Any conceptual or pseudocode examples are simplified representations intended to raise awareness and promote secure development and system configuration practices.

Do not use this information to attempt unauthorized access or exploit vulnerabilities on systems that you do not own or have explicit permission to test.

Ameeba and its authors do not endorse or condone malicious behavior and are not responsible for misuse of the content. Always follow ethical hacking guidelines, responsible disclosure practices, and local laws.

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