CVE-2021-2166

MEDIUM

MySQL Server 5.7.0-5.7.33 and 8.0.0-8.0.23 - Authenticated Denial of Service in DML Component

Title source: llm

Description

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).

References (10)

Core 10

Core References

Vendor Advisory x_refsource_misc

https://www.oracle.com/security-alerts/cpuapr2021.html

Mailing List, Third Party Advisory vendor-advisory x_refsource_fedora

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/AKV7TRUEQW6EV45RSZVVFLVQMNHVHBCJ/

Mailing List, Third Party Advisory vendor-advisory x_refsource_fedora

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/UJVUTKKFQAWR7NURCQHQQ5JHTVYGEOYQ/

Mailing List, Third Party Advisory vendor-advisory x_refsource_fedora

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JJQRPXNDH6YHQLUSCS5VA7DAW32PN7N7/

Mailing List, Third Party Advisory vendor-advisory x_refsource_fedora

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/DPA3CTGXPVWKHMCQDVURK4ETH7GE34KK/

Third Party Advisory x_refsource_confirm

https://security.netapp.com/advisory/ntap-20210513-0002/

Mailing List, Third Party Advisory vendor-advisory x_refsource_fedora

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/GAU7KW36A6TQGKG3RUITYSVUFIHBY3OT/

Mailing List, Third Party Advisory vendor-advisory x_refsource_fedora

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/PEF5CRATUGQZUSQU63MHQIDZPOLHW2VE/

Third Party Advisory vendor-advisory x_refsource_gentoo

https://security.gentoo.org/glsa/202105-27

Third Party Advisory vendor-advisory x_refsource_gentoo

https://security.gentoo.org/glsa/202105-28

Scores

CVSS v3 4.9

EPSS 0.0115

EPSS Percentile 78.8%

Attack Vector NETWORK

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H

CISA SSVC

Vulnrichment

Exploitation none

Automatable no

Technical Impact partial

Details

Status published

Products (9)

fedoraproject/fedora 32

fedoraproject/fedora 33

fedoraproject/fedora 34

mariadb/mariadb 10.2.0 - 10.2.38

netapp/active_iq_unified_manager (2 CPE variants)

netapp/oncommand_insight

netapp/oncommand_workflow_automation

netapp/snapcenter

oracle/mysql 5.7.0 - 5.7.33

Published Apr 22, 2021

Tracked Since Feb 18, 2026