CVE-2023-21868
libmysqlclient21: Vulnerability in the MySQL Server product of Oracle MySQL (component:Server: Optimizer)
CVE-2023-21868 is fixed in 21 products on 1 platform, first by RHSA-2023:2621, released May 9, 2023. It is not reported as exploited. Patch Radar priority: High.
High
CVSS
7.5
Medium
Exploitation
None reported
No vendor assessment
CISA KEV
Not listed
Not in the Known Exploited Vulnerabilities catalog
EPSS
0.0091
60th percentile
Vulnerability in the MySQL Server product of Oracle MySQL (component:Server: Optimizer). Supported versions that are affected are 8.0.31 andprior. Easily exploitable vulnerability allows low privileged attacker withnetwork access via multiple protocols to compromise MySQL Server.Successful attacks of this vulnerability can result in unauthorized abilityto cause a hang or frequently repeatable crash (complete DOS) of MySQLServer. CVSS 3.1 Base Score 6.5 (Availability impacts). CVSS Vector:(CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H).
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Linux | |||
| libmysqlclient21 · Ubuntu 20.04 LTS (focal) | 8.0.32-0buntu0.20.04.1 | libmysqlclient21 8.0.32-0buntu0.20.04.1 | Oct 17, 2023 |
| libmysqlclient21 · Ubuntu 22.04.1 LTS (jammy) | 8.0.32-0buntu0.22.04.1 | libmysqlclient21 8.0.32-0buntu0.22.04.1 | Oct 17, 2023 |
| libmysqlclient21 · Ubuntu 24.10 (oracular) | 8.0.32-0ubuntu2 | libmysqlclient21 8.0.32-0ubuntu2 | Jan 16, 2026 |
| mecab · RHEL 8 | 0:0.996-2.module+el8.8.0+18436+8918dd75 | RHSA-2023:3087 | May 16, 2023 |
| mecab · almalinux 8 | 0.996-2.module_el8.6.0+3340+d764b636 | ALSA-2023:3087 | May 16, 2023 |
| mecab · ol 8 | 0:0.996-2.module+el8.8.0+21055+76bd398b | ELSA-2023-3087 | May 25, 2023 |
| mecab · rocky 8 | 0:0.996-2.module+el8.10.0+1676+9b4b6e24 | RLSA-2023:3087 | Jun 28, 2026 |
| mecab-devel · RHEL 8 | 0:0.996-2.module+el8.8.0+18436+8918dd75 | RHSA-2023:3087 | May 16, 2023 |
| mecab-devel · almalinux 8 | 0.996-2.module_el8.6.0+3340+d764b636 | ALSA-2023:3087 | May 16, 2023 |
| mecab-devel · ol 8 | 0:0.996-2.module+el8.8.0+21055+76bd398b | ELSA-2023-3087 | May 25, 2023 |
| mecab-ipadic · RHEL 8 | 0:2.7.0.20070801-16.module+el8.0.0+3898+e09bb8de | RHSA-2023:3087 | May 16, 2023 |
| mecab-ipadic · almalinux 8 | 2.7.0.20070801-16.module_el8.6.0+3340+d764b636 | ALSA-2023:3087 | May 16, 2023 |
| mecab-ipadic · ol 8 | 0:2.7.0.20070801-16.0.1.module+el8.0.0+5253+1dce7bb2 | ELSA-2023-3087 | May 25, 2023 |
| mecab-ipadic · rocky 8 | 0:2.7.0.20070801-16.module+el8.10.0+1676+9b4b6e24 | RLSA-2023:3087 | Jun 28, 2026 |
| mecab-ipadic-EUCJP · RHEL 8 | 0:2.7.0.20070801-16.module+el8.0.0+3898+e09bb8de | RHSA-2023:3087 | May 16, 2023 |
| mecab-ipadic-EUCJP · almalinux 8 | 2.7.0.20070801-16.module_el8.6.0+3340+d764b636 | ALSA-2023:3087 | May 16, 2023 |
| mecab-ipadic-EUCJP · ol 8 | 0:2.7.0.20070801-16.0.1.module+el8.0.0+5253+1dce7bb2 | ELSA-2023-3087 | May 25, 2023 |
| mysql · RHEL 8 | 0:8.0.32-1.module+el8.8.0+18446+fca6280e | RHSA-2023:3087 | May 16, 2023 |
| mysql · RHEL 9 | 0:8.0.32-1.el9_2 | RHSA-2023:2621 | May 9, 2023 |
| mysql · almalinux 8 | 8.0.32-1.module_el8.8.0+3567+56a616e4 | ALSA-2023:3087 | May 16, 2023 |
| mysql · almalinux 9 | 8.0.32-1.el9_2 | ALSA-2023:2621 | May 9, 2023 |
| mysql · ol 8 | 0:8.0.32-1.module+el8.8.0+21055+76bd398b | ELSA-2023-3087 | May 25, 2023 |
| mysql · ol 9 | 0:8.0.32-1.el9_2 | ELSA-2023-2621 | May 17, 2023 |
| mysql-client · Ubuntu 20.04 LTS (focal) | 8.0.32-0buntu0.20.04.1 | mysql-client 8.0.32-0buntu0.20.04.1 | Oct 17, 2023 |
| mysql-client · Ubuntu 22.04.1 LTS (jammy) | 8.0.32-0buntu0.22.04.1 | mysql-client 8.0.32-0buntu0.22.04.1 | Oct 17, 2023 |
| mysql-client · Ubuntu 24.10 (oracular) | 8.0.32-0ubuntu2 | mysql-client 8.0.32-0ubuntu2 | Jan 16, 2026 |
| mysql-client-8.0 · Ubuntu 20.04 LTS (focal) | 8.0.32-0buntu0.20.04.1 | mysql-client-8.0 8.0.32-0buntu0.20.04.1 | Oct 17, 2023 |
| mysql-client-8.0 · Ubuntu 22.04.1 LTS (jammy) | 8.0.32-0buntu0.22.04.1 | mysql-client-8.0 8.0.32-0buntu0.22.04.1 | Oct 17, 2023 |
| mysql-client-8.0 · Ubuntu 24.10 (oracular) | 8.0.32-0ubuntu2 | mysql-client-8.0 8.0.32-0ubuntu2 | Jan 16, 2026 |
| mysql-client-core-8.0 · Ubuntu 20.04 LTS (focal) | 8.0.32-0buntu0.20.04.1 | mysql-client-core-8.0 8.0.32-0buntu0.20.04.1 | Oct 17, 2023 |
| mysql-client-core-8.0 · Ubuntu 22.04.1 LTS (jammy) | 8.0.32-0buntu0.22.04.1 | mysql-client-core-8.0 8.0.32-0buntu0.22.04.1 | Oct 17, 2023 |
| mysql-client-core-8.0 · Ubuntu 24.10 (oracular) | 8.0.32-0ubuntu2 | mysql-client-core-8.0 8.0.32-0ubuntu2 | Jan 16, 2026 |
| mysql-common · RHEL 8 | 0:8.0.32-1.module+el8.8.0+18446+fca6280e | RHSA-2023:3087 | May 16, 2023 |
| mysql-common · RHEL 9 | 0:8.0.32-1.el9_2 | RHSA-2023:2621 | May 9, 2023 |
| mysql-common · almalinux 8 | 8.0.32-1.module_el8.8.0+3567+56a616e4 | ALSA-2023:3087 | May 16, 2023 |
| mysql-common · almalinux 9 | 8.0.32-1.el9_2 | ALSA-2023:2621 | May 9, 2023 |
| mysql-common · ol 8 | 0:8.0.32-1.module+el8.8.0+21055+76bd398b | ELSA-2023-3087 | May 25, 2023 |
| mysql-common · ol 9 | 0:8.0.32-1.el9_2 | ELSA-2023-2621 | May 17, 2023 |
| mysql-devel · RHEL 8 | 0:8.0.32-1.module+el8.8.0+18446+fca6280e | RHSA-2023:3087 | May 16, 2023 |
| mysql-devel · RHEL 9 | 0:8.0.32-1.el9_2 | RHSA-2023:2621 | May 9, 2023 |
| mysql-devel · almalinux 8 | 8.0.32-1.module_el8.8.0+3567+56a616e4 | ALSA-2023:3087 | May 16, 2023 |
| mysql-devel · almalinux 9 | 8.0.32-1.el9_2 | ALSA-2023:2621 | May 9, 2023 |
| mysql-devel · ol 8 | 0:8.0.32-1.module+el8.8.0+21055+76bd398b | ELSA-2023-3087 | May 25, 2023 |
| mysql-devel · ol 9 | 0:8.0.32-1.el9_2 | ELSA-2023-2621 | May 17, 2023 |
| mysql-errmsg · RHEL 8 | 0:8.0.32-1.module+el8.8.0+18446+fca6280e | RHSA-2023:3087 | May 16, 2023 |
| mysql-errmsg · RHEL 9 | 0:8.0.32-1.el9_2 | RHSA-2023:2621 | May 9, 2023 |
| mysql-errmsg · almalinux 8 | 8.0.32-1.module_el8.8.0+3567+56a616e4 | ALSA-2023:3087 | May 16, 2023 |
| mysql-errmsg · almalinux 9 | 8.0.32-1.el9_2 | ALSA-2023:2621 | May 9, 2023 |
| mysql-errmsg · ol 8 | 0:8.0.32-1.module+el8.8.0+21055+76bd398b | ELSA-2023-3087 | May 25, 2023 |
| mysql-errmsg · ol 9 | 0:8.0.32-1.el9_2 | ELSA-2023-2621 | May 17, 2023 |
| mysql-libs · RHEL 8 | 0:8.0.32-1.module+el8.8.0+18446+fca6280e | RHSA-2023:3087 | May 16, 2023 |
| mysql-libs · RHEL 9 | 0:8.0.32-1.el9_2 | RHSA-2023:2621 | May 9, 2023 |
| mysql-libs · almalinux 8 | 8.0.32-1.module_el8.8.0+3567+56a616e4 | ALSA-2023:3087 | May 16, 2023 |
| mysql-libs · almalinux 9 | 8.0.32-1.el9_2 | ALSA-2023:2621 | May 9, 2023 |
| mysql-libs · ol 8 | 0:8.0.32-1.module+el8.8.0+21055+76bd398b | ELSA-2023-3087 | May 25, 2023 |
| mysql-libs · ol 9 | 0:8.0.32-1.el9_2 | ELSA-2023-2621 | May 17, 2023 |
| mysql-router · Ubuntu 20.04 LTS (focal) | 8.0.32-0buntu0.20.04.1 | mysql-router 8.0.32-0buntu0.20.04.1 | Oct 17, 2023 |
| mysql-router · Ubuntu 22.04.1 LTS (jammy) | 8.0.32-0buntu0.22.04.1 | mysql-router 8.0.32-0buntu0.22.04.1 | Oct 17, 2023 |
| mysql-router · Ubuntu 24.10 (oracular) | 8.0.32-0ubuntu2 | mysql-router 8.0.32-0ubuntu2 | Jan 16, 2026 |
| mysql-server · RHEL 8 | 0:8.0.32-1.module+el8.8.0+18446+fca6280e | RHSA-2023:3087 | May 16, 2023 |
| mysql-server · RHEL 9 | 0:8.0.32-1.el9_2 | RHSA-2023:2621 | May 9, 2023 |
| mysql-server · Ubuntu 20.04 LTS (focal) | 8.0.32-0buntu0.20.04.1 | mysql-server 8.0.32-0buntu0.20.04.1 | Oct 17, 2023 |
| mysql-server · Ubuntu 22.04.1 LTS (jammy) | 8.0.32-0buntu0.22.04.1 | mysql-server 8.0.32-0buntu0.22.04.1 | Oct 17, 2023 |
| mysql-server · Ubuntu 24.10 (oracular) | 8.0.32-0ubuntu2 | mysql-server 8.0.32-0ubuntu2 | Jan 16, 2026 |
| mysql-server · almalinux 8 | 8.0.32-1.module_el8.8.0+3567+56a616e4 | ALSA-2023:3087 | May 16, 2023 |
| mysql-server · almalinux 9 | 8.0.32-1.el9_2 | ALSA-2023:2621 | May 9, 2023 |
| mysql-server · ol 8 | 0:8.0.32-1.module+el8.8.0+21055+76bd398b | ELSA-2023-3087 | May 25, 2023 |
| mysql-server · ol 9 | 0:8.0.32-1.el9_2 | ELSA-2023-2621 | May 17, 2023 |
| mysql-server-8.0 · Ubuntu 20.04 LTS (focal) | 8.0.32-0buntu0.20.04.1 | mysql-server-8.0 8.0.32-0buntu0.20.04.1 | Oct 17, 2023 |
| mysql-server-8.0 · Ubuntu 22.04.1 LTS (jammy) | 8.0.32-0buntu0.22.04.1 | mysql-server-8.0 8.0.32-0buntu0.22.04.1 | Oct 17, 2023 |
| mysql-server-8.0 · Ubuntu 24.10 (oracular) | 8.0.32-0ubuntu2 | mysql-server-8.0 8.0.32-0ubuntu2 | Jan 16, 2026 |
| mysql-server-core-8.0 · Ubuntu 20.04 LTS (focal) | 8.0.32-0buntu0.20.04.1 | mysql-server-core-8.0 8.0.32-0buntu0.20.04.1 | Oct 17, 2023 |
| mysql-server-core-8.0 · Ubuntu 22.04.1 LTS (jammy) | 8.0.32-0buntu0.22.04.1 | mysql-server-core-8.0 8.0.32-0buntu0.22.04.1 | Oct 17, 2023 |
| mysql-server-core-8.0 · Ubuntu 24.10 (oracular) | 8.0.32-0ubuntu2 | mysql-server-core-8.0 8.0.32-0ubuntu2 | Jan 16, 2026 |
| mysql-source-8.0 · Ubuntu 20.04 LTS (focal) | 8.0.32-0buntu0.20.04.1 | mysql-source-8.0 8.0.32-0buntu0.20.04.1 | Oct 17, 2023 |
| mysql-source-8.0 · Ubuntu 22.04.1 LTS (jammy) | 8.0.32-0buntu0.22.04.1 | mysql-source-8.0 8.0.32-0buntu0.22.04.1 | Oct 17, 2023 |
| mysql-source-8.0 · Ubuntu 24.10 (oracular) | 8.0.32-0ubuntu2 | mysql-source-8.0 8.0.32-0ubuntu2 | Jan 16, 2026 |
| mysql-test · RHEL 8 | 0:8.0.32-1.module+el8.8.0+18446+fca6280e | RHSA-2023:3087 | May 16, 2023 |
| mysql-test · RHEL 9 | 0:8.0.32-1.el9_2 | RHSA-2023:2621 | May 9, 2023 |
| mysql-test · almalinux 8 | 8.0.32-1.module_el8.8.0+3567+56a616e4 | ALSA-2023:3087 | May 16, 2023 |
| mysql-test · almalinux 9 | 8.0.32-1.el9_2 | ALSA-2023:2621 | May 9, 2023 |
| mysql-test · ol 8 | 0:8.0.32-1.module+el8.8.0+21055+76bd398b | ELSA-2023-3087 | May 25, 2023 |
| mysql-test · ol 9 | 0:8.0.32-1.el9_2 | ELSA-2023-2621 | May 17, 2023 |
| mysql-testsuite · Ubuntu 20.04 LTS (focal) | 8.0.32-0buntu0.20.04.1 | mysql-testsuite 8.0.32-0buntu0.20.04.1 | Oct 17, 2023 |
| mysql-testsuite · Ubuntu 22.04.1 LTS (jammy) | 8.0.32-0buntu0.22.04.1 | mysql-testsuite 8.0.32-0buntu0.22.04.1 | Oct 17, 2023 |
| mysql-testsuite · Ubuntu 24.10 (oracular) | 8.0.32-0ubuntu2 | mysql-testsuite 8.0.32-0ubuntu2 | Jan 16, 2026 |
| mysql-testsuite-8.0 · Ubuntu 20.04 LTS (focal) | 8.0.32-0buntu0.20.04.1 | mysql-testsuite-8.0 8.0.32-0buntu0.20.04.1 | Oct 17, 2023 |
| mysql-testsuite-8.0 · Ubuntu 22.04.1 LTS (jammy) | 8.0.32-0buntu0.22.04.1 | mysql-testsuite-8.0 8.0.32-0buntu0.22.04.1 | Oct 17, 2023 |
| mysql-testsuite-8.0 · Ubuntu 24.10 (oracular) | 8.0.32-0ubuntu2 | mysql-testsuite-8.0 8.0.32-0ubuntu2 | Jan 16, 2026 |
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