CVE-2021-35575 : What You Need to Know
Discover the impact of CVE-2021-35575, a vulnerability in MySQL Server versions 8.0.26 and prior, allowing network attackers to compromise the server, potentially leading to denial of service attacks. Learn how to mitigate and prevent this security issue.
A vulnerability has been identified in the MySQL Server product of Oracle MySQL, specifically in the 'Optimizer' component. This vulnerability affects versions 8.0.26 and prior, allowing a high-privileged attacker with network access to compromise MySQL Server, leading to potential denial of service (DOS) attacks.
Understanding CVE-2021-35575
This section will provide detailed insights into the CVE-2021-35575 vulnerability.
What is CVE-2021-35575?
The vulnerability in the MySQL Server product allows attackers with network access to compromise the server, potentially leading to DOS attacks. The affected versions are 8.0.26 and earlier.
The Impact of CVE-2021-35575
Successful exploitation of this vulnerability could allow unauthorized attackers to cause a hang or repeatable crash of the MySQL Server, impacting its availability. The CVSS 3.1 Base Score is 4.9, indicating medium severity.
Technical Details of CVE-2021-35575
This section will delve into the technical aspects of the CVE-2021-35575 vulnerability.
Vulnerability Description
The vulnerability lies in the MySQL Server component, specifically in the 'Optimizer', and affects versions 8.0.26 and below. It is easily exploitable and can be abused by high-privileged attackers with network access.
Affected Systems and Versions
The vulnerability impacts MySQL Server versions 8.0.26 and prior, leaving them susceptible to compromise by attackers with network access.
Exploitation Mechanism
Attackers with high privileges and network access can exploit this vulnerability to compromise the MySQL Server, potentially causing a complete DOS through crashes or hangs.
Mitigation and Prevention
In this section, we will discuss the steps to mitigate and prevent the exploitation of CVE-2021-35575.
Immediate Steps to Take
Immediately update MySQL Server to versions beyond 8.0.26 to eliminate the vulnerability and protect against potential exploits.
Long-Term Security Practices
Regularly apply security patches, perform security audits, and limit network access to reduce the risk of exploitation.
Patching and Updates
Stay informed about security updates released by Oracle Corporation for MySQL Server to address vulnerabilities like CVE-2021-35575.