CVE-2018-3155 : What You Need to Know

Oracle MySQL Server component, specifically the Server Parser, contains a vulnerability affecting versions 5.7.23 and earlier, as well as 8.0.12 and earlier. This vulnerability can be exploited by a low privileged attacker with network access, potentially compromising the MySQL Server and causing denial of service (DoS) situations.

Understanding CVE-2018-3155

The vulnerability in the MySQL Server component of Oracle MySQL has the potential to impact various products beyond the server itself.

What is CVE-2018-3155?

The vulnerability allows a low privileged attacker with network access to compromise the MySQL Server, leading to unauthorized actions that can cause the server to hang or crash, resulting in a denial of service situation.

The Impact of CVE-2018-3155

CVSS 3.0 Base Score of 7.7, emphasizing its impact on availability
Successful exploitation can lead to unauthorized actions causing the server to hang or crash, resulting in a denial of service situation

Technical Details of CVE-2018-3155

The technical details of the vulnerability in Oracle MySQL Server.

Vulnerability Description

Easily exploitable vulnerability in the Server Parser component
Low privileged attacker with network access can compromise the server

Affected Systems and Versions

Affected versions: 5.7.23 and prior, 8.0.12 and prior
Vulnerability affects Oracle MySQL Server

Exploitation Mechanism

Attacker with network access can exploit the vulnerability
Potential to impact other products beyond MySQL Server

Mitigation and Prevention

Steps to mitigate and prevent exploitation of CVE-2018-3155.

Immediate Steps to Take

Apply vendor-supplied patches immediately
Restrict network access to the MySQL Server
Monitor for unauthorized access or unusual server behavior

Long-Term Security Practices

Regularly update and patch MySQL Server and related components
Implement network segmentation to limit access to critical servers
Conduct regular security assessments and penetration testing

Patching and Updates

Oracle has released patches to address the vulnerability
Regularly check for updates and apply them promptly