CVE-2021-27223 : Security Advisory and Response
Learn about CVE-2021-27223, a denial-of-service vulnerability in Kaspersky Anti-Virus products for home and Endpoint Security. Find out the impact, affected systems, and mitigation steps.
A denial-of-service vulnerability was identified in Kaspersky Anti-Virus products for home and Kaspersky Endpoint Security, allowing a local user to crash Windows systems by executing a specially crafted binary module. The issue has been automatically addressed.
Understanding CVE-2021-27223
This section delves into the details of the CVE-2021-27223 vulnerability affecting Kaspersky Anti-Virus products.
What is CVE-2021-27223?
The CVE-2021-27223 is a denial-of-service vulnerability present in specific Kaspersky Anti-Virus products for home and Kaspersky Endpoint Security. It allows a local user to crash Windows systems by running a carefully crafted binary module.
The Impact of CVE-2021-27223
The vulnerability enables a local user to trigger a denial-of-service condition, leading to Windows crashes, potentially causing disruption and downtime for affected systems.
Technical Details of CVE-2021-27223
This section outlines the technical aspects of the CVE-2021-27223 vulnerability.
Vulnerability Description
The flaw existed in a module integrated into Kaspersky Anti-Virus products, allowing a local user to crash Windows by executing a specially created binary module.
Affected Systems and Versions
Kaspersky Anti-Virus products for home and Kaspersky Endpoint Security versions with antivirus databases released before June 2021 are impacted by this vulnerability.
Exploitation Mechanism
By running a specifically crafted binary module, a local user could exploit this vulnerability to induce a denial-of-service condition on Windows systems.
Mitigation and Prevention
In this section, we explore the mitigation strategies to address CVE-2021-27223.
Immediate Steps to Take
Users are advised to ensure their Kaspersky Anti-Virus products are updated with patches from Kaspersky that address this vulnerability. Additionally, exercise caution while executing untrusted binaries on the system.
Long-Term Security Practices
Implementing strong security practices, such as regular software updates, security training for users, and monitoring for suspicious activities, can enhance the overall security posture.
Patching and Updates
Regularly check for security updates from Kaspersky and promptly apply them to ensure protection against potential vulnerabilities like CVE-2021-27223.