CVE-2020-35913 : Security Advisory and Response

An issue was discovered in the lock_api crate before 0.4.2 for Rust. A data race can occur because of RwLockReadGuard unsoundness.

Understanding CVE-2020-35913

This CVE describes a vulnerability in the lock_api crate for Rust that can lead to a data race due to unsoundness in RwLockReadGuard.

What is CVE-2020-35913?

The vulnerability in the lock_api crate before version 0.4.2 for Rust allows for the occurrence of a data race, posing a security risk.

The Impact of CVE-2020-35913

The vulnerability could potentially be exploited by attackers to manipulate data and cause unexpected behavior in affected systems.

Technical Details of CVE-2020-35913

The technical details of this CVE are as follows:

Vulnerability Description

The issue arises from unsoundness in RwLockReadGuard within the lock_api crate, potentially leading to data race conditions.

Affected Systems and Versions

Product: Not applicable
Vendor: Not applicable
Versions affected: Not applicable

Exploitation Mechanism

The vulnerability can be exploited by malicious actors to trigger data race conditions, compromising the integrity of the system.

Mitigation and Prevention

To address CVE-2020-35913, consider the following steps:

Immediate Steps to Take

Update the lock_api crate to version 0.4.2 or later to mitigate the vulnerability.
Monitor for any unusual behavior that could indicate exploitation of the data race.

Long-Term Security Practices

Regularly update dependencies and libraries to ensure the latest security patches are applied.
Conduct thorough code reviews to identify and address potential vulnerabilities.

Patching and Updates

Stay informed about security advisories and patches related to the lock_api crate and other dependencies.
Implement a robust software development lifecycle that includes security testing and validation.