CVE-2019-2803 : Security Advisory and Response
Learn about CVE-2019-2803, a vulnerability in Oracle MySQL Server component allowing high privileged attackers to compromise the server, potentially leading to a denial of service situation. Find mitigation steps and preventive measures here.
A vulnerability in the Oracle MySQL Server component (specifically in the Optimizer subcomponent) with supported versions 8.0.16 and earlier can be exploited by a highly privileged attacker, potentially leading to a denial of service situation.
Understanding CVE-2019-2803
This CVE involves a vulnerability in the Oracle MySQL Server component, affecting versions 8.0.16 and prior.
What is CVE-2019-2803?
The vulnerability allows a highly privileged attacker with network access through multiple protocols to compromise the MySQL Server, potentially causing a denial of service.
The Impact of CVE-2019-2803
- Successful exploitation can lead to unauthorized actions causing the server to hang or crash, resulting in a denial of service situation.
- The Common Vulnerability Scoring System (CVSS) 3.0 Base Score for this vulnerability is 4.9, with impacts on availability.
- The CVSS Vector for this vulnerability is (CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H).
Technical Details of CVE-2019-2803
This section provides technical details of the CVE.
Vulnerability Description
The vulnerability in the Oracle MySQL Server component allows a highly privileged attacker to compromise the server, potentially leading to a denial of service.
Affected Systems and Versions
- Product: MySQL Server
- Vendor: Oracle Corporation
- Versions Affected: 8.0.16 and prior
Exploitation Mechanism
The vulnerability can be exploited by a highly privileged attacker with network access through multiple protocols, enabling them to compromise the MySQL Server.
Mitigation and Prevention
Protecting systems from CVE-2019-2803 is crucial to prevent potential attacks.
Immediate Steps to Take
- Apply security patches provided by Oracle Corporation promptly.
- Monitor network traffic for any suspicious activities.
- Restrict network access to the MySQL Server to authorized personnel only.
Long-Term Security Practices
- Regularly update and patch the MySQL Server to address known vulnerabilities.
- Implement strong access controls and authentication mechanisms.
- Conduct regular security audits and assessments to identify and mitigate potential risks.
Patching and Updates
- Stay informed about security advisories and updates from Oracle Corporation.
- Ensure timely installation of patches to secure the MySQL Server against known vulnerabilities.