CVE-2021-4187 : Vulnerability Insights and Analysis
Learn about CVE-2021-4187, a vulnerability in vim/vim leading to Use After Free, with medium severity and CVSS base score of 6.8. Understand its impact, affected systems, and mitigation steps.
A vulnerability has been discovered in vim/vim that could lead to Use After Free, impacting the security of affected systems. Learn more about CVE-2021-4187 below.
Understanding CVE-2021-4187
This section provides insights into what CVE-2021-4187 is and its potential impact on systems.
What is CVE-2021-4187?
CVE-2021-4187 refers to a vulnerability in vim/vim that makes it susceptible to Use After Free.
The Impact of CVE-2021-4187
This vulnerability has a medium severity level, with a CVSS base score of 6.8. It could allow attackers to execute arbitrary code or cause a denial of service on affected systems.
Technical Details of CVE-2021-4187
Explore the technical aspects of CVE-2021-4187 to better understand its implications and scope.
Vulnerability Description
The vulnerability in vim/vim arises from a Use After Free scenario, potentially enabling malicious actors to exploit the application's memory management.
Affected Systems and Versions
Systems running vim versions older than 8.2 are affected by CVE-2021-4187. Users with these versions should take immediate steps to secure their systems.
Exploitation Mechanism
The vulnerability can be exploited locally with low complexity, requiring user interaction. Attackers can exploit this flaw to achieve a high impact on system availability and integrity.
Mitigation and Prevention
Discover the necessary steps to mitigate the risks associated with CVE-2021-4187 and prevent any potential exploitation.
Immediate Steps to Take
Users are advised to update vim to version 8.2 or above to mitigate the vulnerability. Additionally, exercise caution while handling unknown or untrusted files to prevent exploitation.
Long-Term Security Practices
Adopting secure coding practices, regularly updating software, and monitoring security advisories can help maintain a robust defense against similar vulnerabilities in the future.
Patching and Updates
Keep a close eye on official patches and security updates released by vim to address CVE-2021-4187. Promptly apply these updates to ensure the security of your systems.