CVE-2019-2596 Explained : Impact and Mitigation

Oracle MySQL Server component, specifically the Optimizer subcomponent, has a vulnerability affecting versions 8.0.15 and earlier. An attacker with high privileges and network access can exploit this vulnerability to compromise the server, potentially causing denial of service.

Understanding CVE-2019-2596

The Oracle MySQL Server component has a vulnerability that can be exploited by attackers with high privileges and network access.

What is CVE-2019-2596?

Vulnerability in the Oracle MySQL Server component, specifically the Optimizer subcomponent
Affects versions 8.0.15 and prior
Attackers with high privileges and network access can compromise the server
Can lead to server hang or frequent crashes, causing denial of service

The Impact of CVE-2019-2596

CVSS 3.0 Base Score: 4.9
Main impact on availability
Attack vector: (CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H)

Technical Details of CVE-2019-2596

The technical details of the vulnerability in Oracle MySQL Server.

Vulnerability Description

Easily exploitable vulnerability
Allows high privileged attacker with network access to compromise the server
Successful attacks can lead to server hang or frequent crashes

Affected Systems and Versions

Product: MySQL Server
Vendor: Oracle Corporation
Versions affected: 8.0.15 and prior

Exploitation Mechanism

Attacker with high privileges and network access through multiple protocols can exploit the vulnerability

Mitigation and Prevention

Ways to mitigate and prevent exploitation of CVE-2019-2596.

Immediate Steps to Take

Apply security patches provided by Oracle
Restrict network access to the MySQL Server
Monitor server for unusual behavior

Long-Term Security Practices

Regularly update and patch MySQL Server
Implement least privilege access controls
Conduct security audits and assessments

Patching and Updates

Stay informed about security updates from Oracle
Apply patches promptly to address known vulnerabilities