CVE-2021-4091 Explained : Impact and Mitigation
Learn about CVE-2021-4091, a double-free vulnerability in 389-ds-base that could allow attackers to crash the server. Find out the impact, affected systems, and mitigation steps.
A double-free vulnerability was discovered in 389-ds-base, affecting the way it handles virtual attributes context in persistent searches. This could allow an attacker to crash the server by sending a series of search requests.
Understanding CVE-2021-4091
This section provides insights into the details and impact of CVE-2021-4091.
What is CVE-2021-4091?
CVE-2021-4091 is a double-free vulnerability in 389-ds-base that could be exploited by an attacker to crash the server.
The Impact of CVE-2021-4091
The vulnerability could lead to a denial of service (DoS) condition by causing the server to behave unexpectedly and crash.
Technical Details of CVE-2021-4091
Explore the specific technical aspects of CVE-2021-4091 in this section.
Vulnerability Description
The vulnerability arises due to the mishandling of virtual attributes context in persistent searches within 389-ds-base, allowing attackers to trigger a server crash.
Affected Systems and Versions
The vulnerability affects version 1.3.10.2 of 389-ds-base. Users with this version are recommended to take immediate action.
Exploitation Mechanism
Attackers can exploit this vulnerability by sending a series of search requests, forcing the server to behave unexpectedly and resulting in a crash.
Mitigation and Prevention
Learn how to address and prevent the CVE-2021-4091 vulnerability in this section.
Immediate Steps to Take
Immediately apply the security update provided by the vendor to mitigate the risk of exploitation.
Long-Term Security Practices
Ensure regular security updates and patches are applied to all software components to prevent such vulnerabilities in the future.
Patching and Updates
Stay informed about security updates from the vendor and prioritize the installation of patches to secure your systems.