CVE-2020-14866: Medium severity mysql vulnerability
Vulnerability in the MySQL Server product of Oracle MySQL (component: Server: Optimizer). Supported versions that are affected are 8.0.21 and prior. Easily exploitable vulnerability allows high privileged attacker with network access via multiple protocols to compromise MySQL Server. Successful attacks of this vulnerability can result in unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) of MySQL Server.
External References:
https://www.oracle.com/security-alerts/cpuoct2020.html#AppendixMSQL
Other sources
Vulnerability in the MySQL Server product of Oracle MySQL (component: Server: Optimizer). Supported versions that are affected are 8.0.21 and prior. Easily exploitable vulnerability allows high privileged attacker with network access via multiple protocols to compromise MySQL Server. Successful attacks of this vulnerability can result in unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) of MySQL Server. CVSS 3.1 Base Score 4.9 (Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H).
— MITRE
Affected Software
Remediation
Patch Available
Event History
Frequently Asked Questions
What is the severity of CVE-2020-14866?
CVE-2020-14866 is considered a high severity vulnerability due to its potential to allow high privileged attackers to compromise MySQL Server.
How do I fix CVE-2020-14866?
To fix CVE-2020-14866, upgrade MySQL Server to version 8.0.22 or later.
What versions are affected by CVE-2020-14866?
CVE-2020-14866 affects MySQL Server 8.0.21 and prior versions.
Can CVE-2020-14866 be exploited remotely?
Yes, CVE-2020-14866 can be easily exploited by attackers with network access.
What components of MySQL are impacted by CVE-2020-14866?
CVE-2020-14866 specifically impacts the Optimizer component of the MySQL Server product.