CVE-2020-14839: 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-2020-14839?
CVE-2020-14839 is considered a high severity vulnerability due to its exploitability by a high privileged attacker with network access.
How do I fix CVE-2020-14839?
To fix CVE-2020-14839, upgrade MySQL Server to version 8.0.22 or later.
What versions are affected by CVE-2020-14839?
CVE-2020-14839 affects MySQL Server versions 8.0.21 and prior.
What type of access is needed to exploit CVE-2020-14839?
CVE-2020-14839 can be exploited with network access to the MySQL Server using multiple protocols.
What component of MySQL Server is impacted by CVE-2020-14839?
CVE-2020-14839 impacts the Server: Optimizer component of MySQL Server.