CVE-2020-35874 : Exploit Details and Defense Strategies

An issue was discovered in the internment crate through 2020-05-28 for Rust. ArcIntern::drop has a race condition and resultant use-after-free.

Understanding CVE-2020-35874

This CVE involves a vulnerability in the internment crate for Rust, leading to a race condition and use-after-free scenario.

What is CVE-2020-35874?

The vulnerability in the ArcIntern::drop function within the internment crate for Rust allows for a race condition, potentially resulting in a use-after-free issue.

The Impact of CVE-2020-35874

The vulnerability could be exploited by attackers to cause a denial of service (DoS) or potentially execute arbitrary code on affected systems.

Technical Details of CVE-2020-35874

This section provides more technical insights into the CVE.

Vulnerability Description

The issue lies in the ArcIntern::drop function within the internment crate for Rust, leading to a race condition and subsequent use-after-free vulnerability.

Affected Systems and Versions

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

Exploitation Mechanism

The vulnerability can be exploited by malicious actors to trigger a race condition in the ArcIntern::drop function, potentially leading to a use-after-free scenario.

Mitigation and Prevention

Protecting systems from CVE-2020-35874 requires immediate actions and long-term security measures.

Immediate Steps to Take

Update the affected Rust internment crate to the latest version or apply patches if available.
Monitor for any unusual behavior or crashes that could indicate exploitation of the vulnerability.

Long-Term Security Practices

Regularly update software components and libraries to mitigate potential vulnerabilities.
Conduct security assessments and code reviews to identify and address similar issues in the future.

Patching and Updates

Stay informed about security advisories and updates related to Rust and the internment crate to apply patches promptly.