CVE-2021-2390 : What You Need to Know
Learn about CVE-2021-2390, a vulnerability in MySQL Server product of Oracle MySQL, allowing attackers to compromise systems. Stay secure with patching and preventive measures.
A detailed overview of CVE-2021-2390, a vulnerability in the MySQL Server product of Oracle MySQL.
Understanding CVE-2021-2390
This section delves into the specifics of the CVE-2021-2390 vulnerability in MySQL Server.
What is CVE-2021-2390?
The vulnerability in MySQL Server product of Oracle MySQL (component: InnoDB) affects versions 5.7.34 and prior, as well as 8.0.25 and prior. It allows an unauthenticated attacker with network access via multiple protocols to compromise MySQL Server. Successful exploitation can lead to a complete denial of service (DOS) attack.
The Impact of CVE-2021-2390
The CVSS 3.1 Base Score is 5.9 with high availability impacts. An attacker exploiting this vulnerability can cause a hang or frequently repeatable crash of the MySQL Server, granting unauthorized control.
Technical Details of CVE-2021-2390
In-depth technical insights into the CVE-2021-2390 vulnerability in MySQL Server.
Vulnerability Description
This vulnerability is considered difficult to exploit, allowing network attackers to compromise the MySQL Server without authentication, leading to a potential DOS condition.
Affected Systems and Versions
The MySQL Server versions 5.7.34 and prior, along with 8.0.25 and prior, are affected by this vulnerability.
Exploitation Mechanism
Successful exploitation occurs when an unauthenticated attacker gains network access via multiple protocols, compromising the MySQL Server.
Mitigation and Prevention
Recommendations for tackling the CVE-2021-2390 vulnerability and preventing potential exploitation.
Immediate Steps to Take
It is critical to apply security patches and updates promptly to safeguard MySQL Server instances from this vulnerability.
Long-Term Security Practices
Implement robust network security measures, monitor network traffic for anomalies, and maintain strict access controls to mitigate risks.
Patching and Updates
Regularly check for updates from Oracle Corporation and apply necessary patches to address the CVE-2021-2390 vulnerability.