CVE-2021-29940 : What You Need to Know
Discover the impact and technical details of CVE-2021-29940, a double free vulnerability in the Rust through crate causing a panic in the map function. Learn how to mitigate the risk and prevent exploitation.
An issue was discovered in the through crate through 2021-02-18 for Rust which results in a double free upon a panic of the map function.
Understanding CVE-2021-29940
This CVE identifies a vulnerability in the through crate of Rust that leads to a double free issue.
What is CVE-2021-29940?
CVE-2021-29940 refers to a double free vulnerability in the through crate of Rust which occurs upon a panic of the map function.
The Impact of CVE-2021-29940
This vulnerability could be exploited by an attacker to potentially execute arbitrary code or disrupt the normal functioning of affected systems.
Technical Details of CVE-2021-29940
The technical details of CVE-2021-29940 include:
Vulnerability Description
The issue arises in the through crate through 2021-02-18 for Rust due to a double free in the through and through_and upon a panic of the map function.
Affected Systems and Versions
All versions of the through crate through 2021-02-18 for Rust are affected by this vulnerability.
Exploitation Mechanism
An attacker could exploit this vulnerability by causing a panic in the map function, leading to a double free issue in the through and through_and functions.
Mitigation and Prevention
Addressing CVE-2021-29940 involves the following:
Immediate Steps to Take
Developers and users are advised to update to the latest version of the through crate and apply security patches promptly.
Long-Term Security Practices
Implement secure coding practices and conduct regular security audits to identify and address vulnerabilities proactively.
Patching and Updates
Stay informed about security advisories and updates related to the Rust programming language to mitigate the risk associated with CVE-2021-29940.