CVE-2019-2623 : Security Advisory and Response
Learn about CVE-2019-2623 affecting Oracle MySQL Server versions 8.0.15 and earlier. Discover the impact, affected systems, exploitation mechanism, and mitigation steps.
A vulnerability in the Oracle MySQL Server component, affecting versions 8.0.15 and earlier, allows attackers to compromise the server, potentially leading to denial of service attacks.
Understanding CVE-2019-2623
This CVE involves a vulnerability in the MySQL Server component of Oracle MySQL, impacting versions 8.0.15 and prior.
What is CVE-2019-2623?
- The vulnerability lies in the Server: Options subcomponent of Oracle MySQL Server.
- Attackers with network access can exploit this vulnerability, compromising the MySQL Server.
- Successful exploitation can result in unauthorized actions, such as causing the server to hang or crash, leading to denial of service.
The Impact of CVE-2019-2623
- The CVSS 3.0 Base Score rates the impact on availability at 5.3.
- This vulnerability can allow low-privileged attackers to compromise the MySQL Server through various protocols.
Technical Details of CVE-2019-2623
This section provides technical details of the CVE.
Vulnerability Description
- Difficulty in exploitation allows low-privileged attackers with network access to compromise the MySQL Server.
- Successful attacks can lead to unauthorized actions, causing the server to hang or crash, resulting in denial of service.
Affected Systems and Versions
- Product: MySQL Server
- Vendor: Oracle Corporation
- Versions affected: 8.0.15 and prior
Exploitation Mechanism
- Attackers with network access through multiple protocols can exploit this vulnerability.
Mitigation and Prevention
Protecting systems from CVE-2019-2623 is crucial.
Immediate Steps to Take
- Apply security patches provided by Oracle Corporation.
- Monitor network traffic for any suspicious activities.
- Restrict network access to the MySQL Server.
Long-Term Security Practices
- Regularly update and patch MySQL Server to address known vulnerabilities.
- Implement network segmentation to limit access to critical servers.
Patching and Updates
- Stay informed about security advisories from Oracle Corporation.
- Apply updates promptly to ensure system security.