CVE-2021-3973 : Security Advisory and Response

A detailed article about the Heap-based Buffer Overflow vulnerability in vim/vim.

Understanding CVE-2021-3973

This section provides insights into the vulnerability found in vim/vim.

What is CVE-2021-3973?

The CVE-2021-3973 vulnerability is a Heap-based Buffer Overflow issue affecting vim. The vulnerability has a CVSS base score of 7.3 (High).

The Impact of CVE-2021-3973

The vulnerability in vim/vim could allow an attacker to execute arbitrary code or crash the application, leading to a denial of service.

Technical Details of CVE-2021-3973

Explore the technical aspects of the CVE-2021-3973 vulnerability in this section.

Vulnerability Description

The vulnerability presents a Heap-based Buffer Overflow scenario in vim, potentially exploited by a local attacker.

Affected Systems and Versions

The vulnerability affects vim versions less than 8.2.3611 (unspecified).

Exploitation Mechanism

The attack complexity of this vulnerability is low, requiring no privileges and user interaction, with high availability and integrity impacts.

Mitigation and Prevention

Learn how to mitigate and prevent the CVE-2021-3973 vulnerability in this section.

Immediate Steps to Take

Users are advised to update vim to version 8.2.3611 or higher to mitigate the Heap-based Buffer Overflow vulnerability.

Long-Term Security Practices

Implement secure coding practices and regularly update software to prevent future vulnerabilities.

Patching and Updates

Stay informed about security advisories from vim and apply patches promptly to secure your systems.