CVE-2021-2418: Medium severity oracle mysql vulnerability
Vulnerability in the MySQL Server product of Oracle MySQL (component: Server: Optimizer). Supported versions that are affected are 8.0.25 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 8.0.25 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
Event History
Frequently Asked Questions
What is the severity of CVE-2021-2418?
CVE-2021-2418 is considered to be easily exploitable by high privileged attackers, indicating a high severity level.
How do I fix CVE-2021-2418?
To fix CVE-2021-2418, upgrade your MySQL Server to version 8.0.26 or later.
What versions of MySQL are affected by CVE-2021-2418?
CVE-2021-2418 affects MySQL Server versions 8.0.25 and earlier.
Can CVE-2021-2418 be exploited remotely?
Yes, CVE-2021-2418 can be exploited remotely by attackers with network access.
What components of MySQL are impacted by CVE-2021-2418?
CVE-2021-2418 impacts the optimizer component of the MySQL Server product.