CVE-2021-2427: 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-2021-2427?
CVE-2021-2427 is considered to be easily exploitable and poses a high risk to MySQL Server due to its vulnerability to network attacks.
How do I fix CVE-2021-2427?
To mitigate CVE-2021-2427, upgrade to MySQL Server version 8.0.26 or later.
What versions of MySQL Server are affected by CVE-2021-2427?
CVE-2021-2427 affects MySQL Server versions 8.0.25 and earlier.
Can an attacker exploit CVE-2021-2427 remotely?
Yes, an attacker can exploit CVE-2021-2427 remotely with network access due to its design.
Is there a known workaround for CVE-2021-2427?
No specific workarounds for CVE-2021-2427 are documented; updating to a patched version is recommended.