CVE-2021-2203: Medium severity Oracle MySQL vulnerability
Vulnerability in the MySQL Server product of Oracle MySQL (component: Server: Optimizer). Supported versions that are affected are 8.0.23 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/cpuapr2021.html#AppendixMSQL
Other sources
Vulnerability in the MySQL Server product of Oracle MySQL (component: Server: Optimizer). Supported versions that are affected are 8.0.23 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
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade
redhat/mysqlto a version that resolves this vulnerability.Fixed in 8.0.24
Event History
Frequently Asked Questions
What is the vulnerability ID for this MySQL Server vulnerability?
The vulnerability ID for this MySQL Server vulnerability is CVE-2021-2203.
What is the title of this vulnerability?
The title of this vulnerability is 'Vulnerability in the MySQL Server product of Oracle MySQL (component: Server: Optimizer).'
What is the affected software for this vulnerability?
The affected software for this vulnerability is Oracle MySQL (versions 8.0.23 and prior), Apple iPadOS, Apple watchOS, NetApp OnCommand Insight, NetApp OnCommand Workflow Automation, and NetApp Snapcenter.
What is the severity of CVE-2021-2203?
The severity of CVE-2021-2203 is medium with a CVSS score of 4.9.
How can an attacker exploit CVE-2021-2203?
An attacker with high privileges and network access via multiple protocols can exploit CVE-2021-2203 to compromise MySQL Server.