CVE-2017-10378 : Security Advisory and Response

Oracle MySQL Server versions 5.5.57 and earlier, 5.6.37 and earlier, and 5.7.11 and earlier are affected by a vulnerability in the Optimizer subcomponent. This vulnerability can be exploited by a low privileged attacker with network access, potentially leading to a denial of service.

Understanding CVE-2017-10378

This CVE involves a vulnerability in the MySQL Server component of Oracle MySQL, impacting various versions.

What is CVE-2017-10378?

The vulnerability in the Optimizer subcomponent of MySQL Server allows attackers with network access to compromise the server, potentially causing it to hang or crash, resulting in a denial of service. The CVSS 3.0 Base Score is 6.5, affecting the availability of the server.

The Impact of CVE-2017-10378

Low privileged attackers can exploit the vulnerability through multiple protocols
Successful exploitation can lead to unauthorized disruption of the server
The server may hang or crash repeatedly, causing a denial of service

Technical Details of CVE-2017-10378

Oracle MySQL Server is affected by a vulnerability in the Optimizer subcomponent.

Vulnerability Description

The vulnerability allows low privileged attackers with network access to compromise the server, potentially leading to a denial of service.

Affected Systems and Versions

MySQL Server 5.5.57 and earlier
MySQL Server 5.6.37 and earlier
MySQL Server 5.7.11 and earlier

Exploitation Mechanism

Attackers with network access can exploit the vulnerability, impacting the availability of the server.

Mitigation and Prevention

To address CVE-2017-10378, consider the following steps:

Immediate Steps to Take

Apply security patches provided by Oracle
Monitor network traffic for any suspicious activity
Restrict network access to the MySQL Server

Long-Term Security Practices

Regularly update MySQL Server to the latest version
Implement network segmentation to limit access to critical servers
Conduct regular security assessments and audits

Patching and Updates

Ensure timely installation of security patches released by Oracle to mitigate the vulnerability.