CVE-2020-35907 : Vulnerability Insights and Analysis

An issue was discovered in the futures-task crate before 0.3.5 for Rust. The futures_task::noop_waker_ref function allows a NULL pointer dereference.

Understanding CVE-2020-35907

This CVE identifies a vulnerability in the futures-task crate for Rust that can lead to a NULL pointer dereference.

What is CVE-2020-35907?

The vulnerability in the futures-task crate before version 0.3.5 allows for a NULL pointer dereference, which can result in a denial of service or potentially lead to arbitrary code execution.

The Impact of CVE-2020-35907

The exploitation of this vulnerability could lead to a crash of the affected application or potentially enable an attacker to execute malicious code on the target system.

Technical Details of CVE-2020-35907

This section provides more technical insights into the CVE.

Vulnerability Description

The issue lies in the futures_task::noop_waker_ref function, which can be exploited to trigger a NULL pointer dereference.

Affected Systems and Versions

Product: Not applicable
Vendor: Not applicable
Versions affected: All versions before 0.3.5

Exploitation Mechanism

The vulnerability can be exploited by crafting a specific request to trigger the NULL pointer dereference in the futures-task crate.

Mitigation and Prevention

It is crucial to take immediate steps to address and prevent the exploitation of this vulnerability.

Immediate Steps to Take

Update the futures-task crate to version 0.3.5 or later to mitigate the vulnerability.
Monitor for any unusual activity that could indicate exploitation of the vulnerability.

Long-Term Security Practices

Regularly update dependencies in your Rust projects to ensure you are using the latest secure versions.
Conduct security reviews and audits of your codebase to identify and address any potential vulnerabilities.

Patching and Updates

Stay informed about security advisories related to Rust crates and promptly apply patches or updates to address known vulnerabilities.