Improper input validation in MySQL Server - CVE-2023-21920

Vulnerability identifier: #VU75283

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-2023-21920

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: Optimizer component in MySQL Server. A remote privileged user can exploit this vulnerability to perform a denial of service (DoS) attack.

MySQL Server
Anolis OS
Red Hat Enterprise Linux for ARM 64
Red Hat Enterprise Linux for Power, little endian
Red Hat Enterprise Linux for IBM z Systems
Red Hat Enterprise Linux for x86_64
Oracle Solaris
Ubuntu
openEuler
Fedora
IBM Security Guardium
mecab
mecab-ipadic-EUCJP
mecab-ipadic
mysql-server-5.7 (Ubuntu package)
mysql-server-8.0 (Ubuntu package)
community-mysql
mysql-help
mysql-test
mysql-devel
mysql-common
mysql
mysql-config
mysql-libs
mysql-debuginfo
mysql-server
mysql-debugsource
mysql-errmsg
rh-mysql80-mysql (Red Hat package)
mysql (Red Hat package)
Isolation Segment
VMware Tanzu Application Service for VMs
VMware Tanzu Operations Manager

Install updates from vendor's website.

mecab - update to 0.996-2
Isolation Segment - addressed in versions 2.3.0, 2.4.0, 2.5.0, 2.6.0, 2.7.0, 2.8.0, 2.9.0, 2.10.0, 2.11.0, 2.12.0, 2.13.0, 3.0.0, 4.0.0
VMware Tanzu Application Service for VMs - addressed in versions 2.3.3, 2.4.0, 2.5.0, 2.6.0, 2.7.0, 2.8.0, 2.9.0, 2.10.0, 2.11.0, 2.12.0, 2.13.0, 3.0.0, 4.0.0
mecab-ipadic-EUCJP - update to 2.7.0.20070801-16.0.1
mecab-ipadic - update to 2.7.0.20070801-16.0.1
VMware Tanzu Operations Manager - update to 3.0.10
mysql-server-5.7 (Ubuntu package) - update to 5.7.42-0ubuntu0.18.04.1
mysql-server-8.0 (Ubuntu package) - addressed in versions 8.0.33-0ubuntu0.20.04.1, 8.0.33-0ubuntu0.22.04.1, 8.0.33-0ubuntu0.22.10.1, 8.0.33-0ubuntu0.23.04.1
community-mysql - addressed in versions 8.0.34-2.fc37, 8.0.34-2.fc38, 8.0.34-2.fc39
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-devel - 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
mysql-config - 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-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-errmsg - addressed in versions 8.0.35-1, 8.0.38-1
rh-mysql80-mysql (Red Hat package) - update to 8.0.36-1.el7
mysql (Red Hat package) - update to 8.0.36-1.el9_3
mysql-test - update to 8.0.36-1.0.1
mysql-server - update to 8.0.36-1.0.1
mysql-libs - update to 8.0.36-1.0.1
mysql-errmsg - update to 8.0.36-1.0.1
mysql-devel - update to 8.0.36-1.0.1
mysql-common - update to 8.0.36-1.0.1
mysql - update to 8.0.36-1.0.1
mysql - addressed in versions 8.0-3720230907003352.9e842022, 8.0-3820230907003352.75741a8b

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

• Multiple vulnerabilities in MySQL Server
• Ubuntu update for mysql-5.7
• VMware Tanzu products update for MySQL
• Multiple vulnerabilities in Oracle Solaris third-party software
• Fedora 37 update for community-mysql
• Fedora 39 update for community-mysql
• Fedora 38 update for community-mysql
• Fedora 37 Modular update for mysql
• Fedora 38 Modular update for mysql
• Multiple vulnerabilities in IBM Security Guardium
• Red Hat Enterprise Linux 8 update for the mysql:8.0 module
• openEuler 22.03 LTS SP1 update for mysql
• openEuler 22.03 LTS SP2 update for mysql
• openEuler 22.03 LTS update for mysql
• Red Hat Enterprise Linux 9 update for mysql
• Red Hat Software Collections update for rh-mysql80-mysql
• openEuler 20.03 LTS SP4 update for mysql
• Anolis OS update for mysql:8.0 module