medium
4.9
Advisory Published
CVE Published
Updated

CVE-2021-2166

First published: Tue Apr 20 2021(Updated: )

Vulnerability in the MySQL Server product of Oracle MySQL (component: Server: DML). Supported versions that are affected are 5.7.33 and prior and 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).

Credit: secalert_us@oracle.com

Affected SoftwareAffected VersionHow to fix
redhat/mysql<5.7.34
5.7.34
redhat/mysql<8.0.24
8.0.24
redhat/mariadb<10.5.10
10.5.10
redhat/mariadb<10.4.19
10.4.19
redhat/mariadb<10.3.29
10.3.29
redhat/mariadb<10.2.38
10.2.38
Oracle MySQL>=5.7.0<=5.7.33
Oracle MySQL>=8.0<=8.0.23
Fedora=32
Fedora=33
Fedora=34
NetApp Active IQ Unified Manager for VMware vSphere
NetApp Active IQ Unified Manager
NetApp OnCommand Insight
NetApp OnCommand Workflow Automation
NetApp SnapCenter
MariaDB>=10.2.0<10.2.38
MariaDB>=10.3.0<10.3.29
MariaDB>=10.4.0<10.4.19
MariaDB>=10.5.0<10.5.10

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Reference Links

Frequently Asked Questions

  • What is the severity of CVE-2021-2166?

    The severity of CVE-2021-2166 is considered high due to its potential for exploitation by a high privileged attacker.

  • How do I fix CVE-2021-2166?

    To fix CVE-2021-2166, upgrade MySQL to version 5.7.34 or later, or to version 8.0.24 or later.

  • What versions are affected by CVE-2021-2166?

    CVE-2021-2166 affects MySQL Server versions 5.7.33 and earlier, and 8.0.23 and earlier.

  • How can CVE-2021-2166 be exploited?

    CVE-2021-2166 can be exploited remotely by an attacker with high privileges using various network protocols.

  • Which software products are impacted by CVE-2021-2166?

    CVE-2021-2166 impacts Oracle MySQL and related distributions such as MariaDB in affected versions.

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