Improper input validation in MySQL Server - CVE-2023-21865

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Main Vulnerability Database Vulnerabilities #VU71274

Improper input validation in MySQL Server - CVE-2023-21865

Published: January 17, 2023


Vulnerability identifier: #VU71274
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-2023-21865
CWE-ID: CWE-20
Exploitation vector: Remote access
Exploit availability: No public exploit available

Vulnerability details

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.


Affected software

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
openEuler
IBM Security Guardium
mecab
mecab-ipadic-EUCJP
mecab-ipadic
rh-mysql80-mysql (Red Hat package)
mysql (Red Hat package)
mysql-test
mysql-server
mysql-libs
mysql-errmsg
mysql-devel
mysql-common
mysql
mysql-debuginfo
mysql-debugsource
mysql-config
mysql-help

How to mitigate CVE-2023-21865

Install updates from vendor's website.

MySQL Server - update to 8.0.31
mecab - update to 0.996-2
mecab-ipadic-EUCJP - update to 2.7.0.20070801-16.0.1
mecab-ipadic - update to 2.7.0.20070801-16.0.1
rh-mysql80-mysql (Red Hat package) - update to 8.0.32-1.el7
mysql (Red Hat package) - update to 8.0.32-1.el9_2
mysql-test - update to 8.0.32-1.0.1
mysql-server - update to 8.0.32-1.0.1
mysql-libs - update to 8.0.32-1.0.1
mysql-errmsg - update to 8.0.32-1.0.1
mysql-devel - update to 8.0.32-1.0.1
mysql-common - update to 8.0.32-1.0.1
mysql - update to 8.0.32-1.0.1
mysql-devel - 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-config - addressed in versions 8.0.35-1, 8.0.38-1
mysql-errmsg - 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-common - addressed in versions 8.0.35-1, 8.0.38-1
mysql - addressed in versions 8.0.35-1, 8.0.38-1

External References

Related Security Bulletins