CVE-2021-2298: 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 low 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 low 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 6.5 (Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:L/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-2021-2298?
CVE-2021-2298 is classified as a high severity vulnerability that allows low privileged attackers to compromise MySQL Server.
How do I fix CVE-2021-2298?
To fix CVE-2021-2298, upgrade your MySQL Server to version 8.0.24 or later.
What versions of MySQL are affected by CVE-2021-2298?
CVE-2021-2298 affects MySQL Server versions 8.0.23 and earlier.
Can CVE-2021-2298 be exploited remotely?
Yes, CVE-2021-2298 can be exploited remotely by an attacker with network access.
What components of MySQL does CVE-2021-2298 affect?
CVE-2021-2298 affects the MySQL Optimizer component of the MySQL Server product.