CVE-2021-2212: 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 severity of CVE-2021-2212?
CVE-2021-2212 is classified as a critical vulnerability due to its potential for exploitation by high-privileged attackers with network access.
How do I fix CVE-2021-2212?
To remediate CVE-2021-2212, upgrade MySQL Server to version 8.0.24 or later.
What systems are affected by CVE-2021-2212?
CVE-2021-2212 affects MySQL Server versions 8.0.23 and earlier, as well as certain NetApp products that utilize these MySQL versions.
Is there a workaround for CVE-2021-2212?
There are no recommended workarounds for CVE-2021-2212; the primary resolution is to update to the fixed version.
What type of attackers can exploit CVE-2021-2212?
CVE-2021-2212 can be exploited by high-privileged attackers who have network access to the MySQL Server.