What is the vulnerability in MySQL Server?

The vulnerability is in the Server: Connection Handling component of Oracle MySQL.

Which versions of MySQL Server are affected by this vulnerability?

Versions 5.7.40 and prior, and 8.0.31 and prior are affected.

What is the severity of CVE-2023-21963?

CVE-2023-21963 has a severity value of 2.7, which is classified as low.

How can an attacker exploit this vulnerability?

An attacker with high privileges and network access via multiple protocols can easily exploit this vulnerability.

Where can I find more information about CVE-2023-21963?

You can find more information about CVE-2023-21963 on the following references: [NetApp Security Advisory](https://security.netapp.com/advisory/ntap-20230427-0007/) and [Oracle Security Alerts](https://www.oracle.com/security-alerts/cpuapr2023.html)

Vulnerability/
CVE-2023-21963

low

2.7

18/4/2023

16/9/2024

CVE-2023-21963

First published: Tue Apr 18 2023(Updated: )

Vulnerability in the MySQL Server product of Oracle MySQL (component: Server: Connection Handling). Supported versions that are affected are 5.7.40 and prior and 8.0.31 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 partial denial of service (partial DOS) of MySQL Server. CVSS 3.1 Base Score 2.7 (Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:L).

Credit: secalert_us@oracle.com

Affected Software	Affected Version	How to fix
Oracle Mysql Server	>=5.7.0<=5.7.40
Oracle Mysql Server	>=8.0.0<=8.0.31

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Frequently Asked Questions

What is the vulnerability in MySQL Server?
The vulnerability is in the Server: Connection Handling component of Oracle MySQL.
Which versions of MySQL Server are affected by this vulnerability?
Versions 5.7.40 and prior, and 8.0.31 and prior are affected.
What is the severity of CVE-2023-21963?
CVE-2023-21963 has a severity value of 2.7, which is classified as low.
How can an attacker exploit this vulnerability?
An attacker with high privileges and network access via multiple protocols can easily exploit this vulnerability.
Where can I find more information about CVE-2023-21963?
You can find more information about CVE-2023-21963 on the following references: [NetApp Security Advisory](https://security.netapp.com/advisory/ntap-20230427-0007/) and [Oracle Security Alerts](https://www.oracle.com/security-alerts/cpuapr2023.html)

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agent/severity
agent/references
agent/author
agent/tags
agent/type
agent/event
agent/description
agent/last-modified-date
agent/softwarecombine
agent/first-publish-date
collector/mitre-cve
source/MITRE
vendor/oracle
canonical/oracle mysql server
version/oracle mysql server/5.7.0
version/oracle mysql server/5.7.40
version/oracle mysql server/8.0.0
version/oracle mysql server/8.0.31

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