Learn about CVE-2019-2757 affecting Oracle MySQL Server versions 5.7.26 and prior, as well as 8.0.16 and prior. Understand the impact, technical details, and mitigation steps for this vulnerability.
Oracle MySQL Server versions 5.7.26 and prior, as well as 8.0.16 and prior, are affected by a vulnerability in the Server: Optimizer subcomponent. This vulnerability can be exploited by a highly privileged attacker with network access, potentially leading to a denial of service situation.
Understanding CVE-2019-2757
This CVE involves a vulnerability in the MySQL Server component of Oracle MySQL, impacting specific versions and potentially allowing unauthorized individuals to compromise the server.
What is CVE-2019-2757?
The vulnerability in the MySQL Server component of Oracle MySQL, specifically in the Server: Optimizer subcomponent, affects versions 5.7.26 and earlier, as well as 8.0.16 and earlier. It can be exploited by a highly privileged attacker with network access through various protocols to compromise the MySQL Server.
The Impact of CVE-2019-2757
If successfully exploited, this vulnerability can allow unauthorized individuals to cause the server to hang or crash repeatedly, resulting in a denial of service (DoS) situation. The Common Vulnerability Scoring System (CVSS) 3.0 Base Score for this vulnerability is 4.9, with the primary impact being on availability.
Technical Details of CVE-2019-2757
Oracle MySQL Server is affected by a vulnerability in the Server: Optimizer subcomponent, potentially leading to a denial of service situation.
Vulnerability Description
The vulnerability allows a highly privileged attacker with network access to compromise the MySQL Server, potentially causing it to hang or crash, leading to a denial of service.
Affected Systems and Versions
Exploitation Mechanism
Mitigation and Prevention
Taking immediate steps and implementing long-term security practices are crucial to mitigate the risks associated with CVE-2019-2757.
Immediate Steps to Take
Long-Term Security Practices
Patching and Updates