CVE-2021-2444: Medium severity ORACLE MySQL Server 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:
http://www.oracle.com/security-alerts/cpujul2021.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 severity of CVE-2021-2444?
CVE-2021-2444 has been rated as a high severity vulnerability due to its exploitable nature by privileged attackers.
How do I fix CVE-2021-2444?
To remediate CVE-2021-2444, update your MySQL Server to version 8.0.24 or later.
What versions of MySQL Server are affected by CVE-2021-2444?
MySQL Server versions 8.0.23 and prior are affected by CVE-2021-2444.
Can CVE-2021-2444 be exploited remotely?
Yes, CVE-2021-2444 can be exploited remotely by an attacker with high privileges and network access.
What component of MySQL is impacted by CVE-2021-2444?
CVE-2021-2444 impacts the MySQL Server component within the optimizer.