CVE-2021-2076: Medium severity ibm infosphere guardium z/os vulnerability
An unspecified vulnerability in Oracle MySQL Server related to the Server: Optimizer component could allow an authenticated attacker to cause a denial of service resulting in a high availability impact using unknown attack vectors.
Other sources
Vulnerability in the MySQL Server product of Oracle MySQL (component: Server: Optimizer). Supported versions that are affected are 8.0.22 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/cpujan2021.html#AppendixMSQL
— Red Hat
Vulnerability in the MySQL Server product of Oracle MySQL (component: Server: Optimizer). Supported versions that are affected are 8.0.22 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-2021-2076?
CVE-2021-2076 is classified as having high severity due to its potential impact on availability.
How do I fix CVE-2021-2076?
To fix CVE-2021-2076, update your MySQL Server to version 8.0.23 or later.
What products are affected by CVE-2021-2076?
Affected products include Oracle MySQL Server versions below 8.0.23 and IBM InfoSphere Guardium versions up to 11.3.
Can CVE-2021-2076 be exploited remotely?
CVE-2021-2076 requires authentication to exploit, making it less likely to be exploited remotely.
What mitigation strategies are recommended for CVE-2021-2076?
Mitigation strategies for CVE-2021-2076 include applying the relevant software updates and monitoring for unusual server behavior.