Improper input validation in MySQL Server - CVE-2023-21840

Vulnerability identifier: #VU71284

CSH Severity: Medium

CVSS v4: 6.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]

CVE-ID: CVE-2023-21840

CWE-ID: CWE-20

Exploitation vector: Remote access

Exploit availability: No public exploit available

The vulnerability allows a remote privileged user to perform a denial of service (DoS) attack.

The vulnerability exists due to improper input validation within the Server: PS component in MySQL Server. A remote privileged user can exploit this vulnerability to perform a denial of service (DoS) attack.

MySQL Server
Isolation Segment
Amazon Linux AMI
Oracle Solaris
Ubuntu
IBM Security Guardium
mysql-server-5.7 (Ubuntu package)
mysql57
mysql-server-8.0 (Ubuntu package)
EMC ViPR SRM
Dell EMC Storage Monitoring and Reporting (SMR)

Install updates from vendor's website.

MySQL Server - update to 5.7.41
mysql-server-5.7 (Ubuntu package) - addressed in versions Ubuntu Pro (Infra-only), 5.7.41-0ubuntu0.18.04.1
EMC ViPR SRM - update to 4.9.0.0
Dell EMC Storage Monitoring and Reporting (SMR) - update to 4.9.0.0
mysql57 - update to 5.7.41-1.18
mysql-server-8.0 (Ubuntu package) - addressed in versions 8.0.32-0buntu0.20.04.1, 8.0.32-0buntu0.22.04.1, 8.0.32-0buntu0.22.10.1

• https://www.oracle.com/security-alerts/cpujan2023.html

• Multiple vulnerabilities in MySQL Server
• Ubuntu update for mysql-5.7
• Ubuntu update for mysql-5.7
• Amazon Linux AMI update for mysql57
• Multiple vulnerabilities in IBM Security Guardium
• Multiple vulnerabilities in Oracle Solaris third-party software
• VMware Tanzu Isolation Segment update for MySQL
• Multiple vulnerabilities in Dell EMC SRM and Dell EMC Storage Monitoring and Reporting (SMR)