Improper input validation in MySQL Server - CVE-2023-21963

Vulnerability identifier: #VU75293

CSH Severity: Low

CVSS v4: 5.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N]

CVE-ID: CVE-2023-21963

CWE-ID: CWE-20

Exploitation vector: Remote access

Exploit availability: No public exploit available

The vulnerability allows a remote privileged user to perform service disruption.

The vulnerability exists due to improper input validation within the Server: Connection Handling component in MySQL Server. A remote privileged user can exploit this vulnerability to perform service disruption.

MySQL Server
IBM Security Guardium
openEuler
Anolis OS
mysql-test
mysql-server
mysql-libs
mysql-errmsg
mysql-devel
mysql-common
mysql
mysql-config
mysql-help
mysql-debuginfo
mysql-debugsource

Install updates from vendor's website.

MySQL Server - addressed in versions 5.7.41, 8.0.32
mysql-test - update to 8.0.33-1
mysql-server - update to 8.0.33-1
mysql-libs - update to 8.0.33-1
mysql-errmsg - update to 8.0.33-1
mysql-devel - update to 8.0.33-1
mysql-common - update to 8.0.33-1
mysql - update to 8.0.33-1
mysql-errmsg - addressed in versions 8.0.35-1, 8.0.38-1
mysql-config - addressed in versions 8.0.35-1, 8.0.38-1
mysql-help - addressed in versions 8.0.35-1, 8.0.38-1
mysql-test - addressed in versions 8.0.35-1, 8.0.38-1
mysql-libs - addressed in versions 8.0.35-1, 8.0.38-1
mysql-debuginfo - addressed in versions 8.0.35-1, 8.0.38-1
mysql-devel - addressed in versions 8.0.35-1, 8.0.38-1
mysql-server - addressed in versions 8.0.35-1, 8.0.38-1
mysql-debugsource - addressed in versions 8.0.35-1, 8.0.38-1
mysql-common - addressed in versions 8.0.35-1, 8.0.38-1
mysql - addressed in versions 8.0.35-1, 8.0.38-1

• https://www.oracle.com/security-alerts/cpuapr2023.html

• Multiple vulnerabilities in MySQL Server
• Multiple vulnerabilities in IBM Security Guardium
• openEuler 22.03 LTS SP1 update for mysql
• openEuler 22.03 LTS SP2 update for mysql
• openEuler 22.03 LTS update for mysql
• openEuler 20.03 LTS SP4 update for mysql
• Anolis OS update for mysql