CVE-2019-2826 Explained : Impact and Mitigation

Oracle MySQL Server prior to version 8.0.16 is affected by a vulnerability in the Server: Security: Roles subcomponent. This vulnerability can be exploited by a highly privileged attacker with network access, potentially leading to a denial of service situation.

Understanding CVE-2019-2826

This CVE involves a vulnerability in Oracle MySQL Server that allows unauthorized actions leading to server crashes.

What is CVE-2019-2826?

The vulnerability affects Oracle MySQL Server versions 8.0.16 and earlier.
It can be exploited by a highly privileged attacker with network access through multiple protocols.
Successful exploitation can result in unauthorized actions causing the server to hang or crash frequently, leading to a denial of service situation.
The CVSS 3.0 Base Score for this vulnerability is 4.9, indicating its impact on availability.

The Impact of CVE-2019-2826

The vulnerability can lead to a compromise of the MySQL Server.
Unauthorized actions can cause the server to hang or crash frequently, resulting in a denial of service situation.

Technical Details of CVE-2019-2826

This section provides technical details about the vulnerability.

Vulnerability Description

The vulnerability is present in the Server: Security: Roles subcomponent of Oracle MySQL Server.
It allows a highly privileged attacker with network access to compromise the server.

Affected Systems and Versions

Affected system: Oracle MySQL Server
Affected versions: 8.0.16 and prior

Exploitation Mechanism

The vulnerability can be exploited by a highly privileged attacker with network access through multiple protocols.
Successful attacks can lead to unauthorized actions causing the server to hang or crash.

Mitigation and Prevention

Protecting systems from CVE-2019-2826 is crucial to prevent potential security risks.

Immediate Steps to Take

Update Oracle MySQL Server to version 8.0.16 or later to mitigate the vulnerability.
Monitor network access and restrict privileges to minimize the risk of exploitation.

Long-Term Security Practices

Regularly update and patch Oracle MySQL Server to address known vulnerabilities.
Implement network security measures to control access and prevent unauthorized actions.

Patching and Updates

Stay informed about security advisories and updates from Oracle Corporation.
Apply patches and updates promptly to ensure the security of Oracle MySQL Server.