# CVE-2020-14576: libmysqlclient21: Vulnerability in the MySQL Server product of Oracle MySQL (component:Server: UDF) CVE-2020-14576 is fixed in 27 products on 1 platform, first by RHSA-2020:3732, released September 14, 2020. It is not reported as exploited. Patch Radar priority: Routine. - Web page: https://patchblox.com/security/cve/CVE-2020-14576 - Priority: Routine - CVSS: 6.5 (Medium) - EPSS: 0.0224 - CISA KEV: not listed - Exploited (vendor report): no - Publicly disclosed: no - Published: Jul 15, 2020 ## Description Vulnerability in the MySQL Server product of Oracle MySQL (component:Server: UDF). Supported versions that are affected are 5.7.30 and prior and8.0.20 and prior. Easily exploitable vulnerability allows low privilegedattacker with network access via multiple protocols to compromise MySQLServer. Successful attacks of this vulnerability can result in unauthorizedability to cause a hang or frequently repeatable crash (complete DOS) ofMySQL Server. 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 | Platform | Product | Fixed in | Fix | Released | |---|---|---|---|---| | Linux | libmysqlclient20 Ubuntu 18.04.6 LTS (bionic) | 5.7.31-0ubuntu0.18.04.1 | [libmysqlclient20 5.7.31-0ubuntu0.18.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-libmysqlclient20-5.7.31-0ubuntu0.18.04.1.md) | Apr 22, 2021 | | Linux | libmysqlclient21 Ubuntu 20.04 LTS (focal) | 8.0.21-0ubuntu0.20.04.3 | [libmysqlclient21 8.0.21-0ubuntu0.20.04.3](https://patchblox.com/security/data/fix/linux/ubuntu-focal-libmysqlclient21-8.0.21-0ubuntu0.20.04.3.md) | Jan 20, 2021 | | Linux | libmysqlclient21 Ubuntu 24.10 (oracular) | 8.0.21-0ubuntu3 | [libmysqlclient21 8.0.21-0ubuntu3](https://patchblox.com/security/data/fix/linux/ubuntu-oracular-libmysqlclient21-8.0.21-0ubuntu3.md) | Jan 16, 2026 | | Linux | mecab RHEL 8 | 0:0.996-1.module+el8.0.0+3898+e09bb8de.9 | [RHSA-2020:3732](https://patchblox.com/security/data/fix/linux/rhsa-2020-3732.md) | Sep 14, 2020 | | Linux | mecab ol 8 | 0:0.996-1.module+el8.0.0+5253+1dce7bb2.9 | [ELSA-2020-3732](https://patchblox.com/security/data/fix/linux/elsa-2020-3732.md) | Sep 16, 2020 | | Linux | mecab-ipadic RHEL 8 | 0:2.7.0.20070801-16.module+el8.0.0+3898+e09bb8de | [RHSA-2020:3732](https://patchblox.com/security/data/fix/linux/rhsa-2020-3732.md) | Sep 14, 2020 | | Linux | mecab-ipadic ol 8 | 0:2.7.0.20070801-16.0.1.module+el8.0.0+5253+1dce7bb2 | [ELSA-2020-3732](https://patchblox.com/security/data/fix/linux/elsa-2020-3732.md) | Sep 16, 2020 | | Linux | mecab-ipadic-EUCJP RHEL 8 | 0:2.7.0.20070801-16.module+el8.0.0+3898+e09bb8de | [RHSA-2020:3732](https://patchblox.com/security/data/fix/linux/rhsa-2020-3732.md) | Sep 14, 2020 | | Linux | mecab-ipadic-EUCJP ol 8 | 0:2.7.0.20070801-16.0.1.module+el8.0.0+5253+1dce7bb2 | [ELSA-2020-3732](https://patchblox.com/security/data/fix/linux/elsa-2020-3732.md) | Sep 16, 2020 | | Linux | mysql RHEL 8 | 0:8.0.21-1.module+el8.2.0+7855+47abd494 | [RHSA-2020:3732](https://patchblox.com/security/data/fix/linux/rhsa-2020-3732.md) | Sep 14, 2020 | | Linux | mysql ol 8 | 0:8.0.21-1.module+el8.2.0+7793+cfe2b687 | [ELSA-2020-3732](https://patchblox.com/security/data/fix/linux/elsa-2020-3732.md) | Sep 16, 2020 | | Linux | mysql-client Ubuntu 18.04.6 LTS (bionic) | 5.7.31-0ubuntu0.18.04.1 | [mysql-client 5.7.31-0ubuntu0.18.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-mysql-client-5.7.31-0ubuntu0.18.04.1.md) | Apr 22, 2021 | | Linux | mysql-client Ubuntu 20.04 LTS (focal) | 8.0.21-0ubuntu0.20.04.3 | [mysql-client 8.0.21-0ubuntu0.20.04.3](https://patchblox.com/security/data/fix/linux/ubuntu-focal-mysql-client-8.0.21-0ubuntu0.20.04.3.md) | Jan 20, 2021 | | Linux | mysql-client Ubuntu 24.10 (oracular) | 8.0.21-0ubuntu3 | [mysql-client 8.0.21-0ubuntu3](https://patchblox.com/security/data/fix/linux/ubuntu-oracular-mysql-client-8.0.21-0ubuntu3.md) | Jan 16, 2026 | | Linux | mysql-client-5.7 Ubuntu 18.04.6 LTS (bionic) | 5.7.31-0ubuntu0.18.04.1 | [mysql-client-5.7 5.7.31-0ubuntu0.18.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-mysql-client-5.7-5.7.31-0ubuntu0.18.04.1.md) | Apr 22, 2021 | | Linux | mysql-client-8.0 Ubuntu 20.04 LTS (focal) | 8.0.21-0ubuntu0.20.04.3 | [mysql-client-8.0 8.0.21-0ubuntu0.20.04.3](https://patchblox.com/security/data/fix/linux/ubuntu-focal-mysql-client-8.0-8.0.21-0ubuntu0.20.04.3.md) | Jan 20, 2021 | | Linux | mysql-client-8.0 Ubuntu 24.10 (oracular) | 8.0.21-0ubuntu3 | [mysql-client-8.0 8.0.21-0ubuntu3](https://patchblox.com/security/data/fix/linux/ubuntu-oracular-mysql-client-8.0-8.0.21-0ubuntu3.md) | Jan 16, 2026 | | Linux | mysql-client-core-5.7 Ubuntu 18.04.6 LTS (bionic) | 5.7.31-0ubuntu0.18.04.1 | [mysql-client-core-5.7 5.7.31-0ubuntu0.18.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-mysql-client-core-5.7-5.7.31-0ubuntu0.18.04.1.md) | Apr 22, 2021 | | Linux | mysql-client-core-8.0 Ubuntu 20.04 LTS (focal) | 8.0.21-0ubuntu0.20.04.3 | [mysql-client-core-8.0 8.0.21-0ubuntu0.20.04.3](https://patchblox.com/security/data/fix/linux/ubuntu-focal-mysql-client-core-8.0-8.0.21-0ubuntu0.20.04.3.md) | Jan 20, 2021 | | Linux | mysql-client-core-8.0 Ubuntu 24.10 (oracular) | 8.0.21-0ubuntu3 | [mysql-client-core-8.0 8.0.21-0ubuntu3](https://patchblox.com/security/data/fix/linux/ubuntu-oracular-mysql-client-core-8.0-8.0.21-0ubuntu3.md) | Jan 16, 2026 | | Linux | mysql-common RHEL 8 | 0:8.0.21-1.module+el8.2.0+7855+47abd494 | [RHSA-2020:3732](https://patchblox.com/security/data/fix/linux/rhsa-2020-3732.md) | Sep 14, 2020 | | Linux | mysql-common ol 8 | 0:8.0.21-1.module+el8.2.0+7793+cfe2b687 | [ELSA-2020-3732](https://patchblox.com/security/data/fix/linux/elsa-2020-3732.md) | Sep 16, 2020 | | Linux | mysql-devel RHEL 8 | 0:8.0.21-1.module+el8.2.0+7855+47abd494 | [RHSA-2020:3732](https://patchblox.com/security/data/fix/linux/rhsa-2020-3732.md) | Sep 14, 2020 | | Linux | mysql-devel ol 8 | 0:8.0.21-1.module+el8.2.0+7793+cfe2b687 | [ELSA-2020-3732](https://patchblox.com/security/data/fix/linux/elsa-2020-3732.md) | Sep 16, 2020 | | Linux | mysql-errmsg RHEL 8 | 0:8.0.21-1.module+el8.2.0+7855+47abd494 | [RHSA-2020:3732](https://patchblox.com/security/data/fix/linux/rhsa-2020-3732.md) | Sep 14, 2020 | | Linux | mysql-errmsg ol 8 | 0:8.0.21-1.module+el8.2.0+7793+cfe2b687 | [ELSA-2020-3732](https://patchblox.com/security/data/fix/linux/elsa-2020-3732.md) | Sep 16, 2020 | | Linux | mysql-libs RHEL 8 | 0:8.0.21-1.module+el8.2.0+7855+47abd494 | [RHSA-2020:3732](https://patchblox.com/security/data/fix/linux/rhsa-2020-3732.md) | Sep 14, 2020 | | Linux | mysql-libs ol 8 | 0:8.0.21-1.module+el8.2.0+7793+cfe2b687 | [ELSA-2020-3732](https://patchblox.com/security/data/fix/linux/elsa-2020-3732.md) | Sep 16, 2020 | | Linux | mysql-router Ubuntu 20.04 LTS (focal) | 8.0.21-0ubuntu0.20.04.3 | [mysql-router 8.0.21-0ubuntu0.20.04.3](https://patchblox.com/security/data/fix/linux/ubuntu-focal-mysql-router-8.0.21-0ubuntu0.20.04.3.md) | Jan 20, 2021 | | Linux | mysql-router Ubuntu 24.10 (oracular) | 8.0.21-0ubuntu3 | [mysql-router 8.0.21-0ubuntu3](https://patchblox.com/security/data/fix/linux/ubuntu-oracular-mysql-router-8.0.21-0ubuntu3.md) | Jan 16, 2026 | | Linux | mysql-server RHEL 8 | 0:8.0.21-1.module+el8.2.0+7855+47abd494 | [RHSA-2020:3732](https://patchblox.com/security/data/fix/linux/rhsa-2020-3732.md) | Sep 14, 2020 | | Linux | mysql-server Ubuntu 18.04.6 LTS (bionic) | 5.7.31-0ubuntu0.18.04.1 | [mysql-server 5.7.31-0ubuntu0.18.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-mysql-server-5.7.31-0ubuntu0.18.04.1.md) | Apr 22, 2021 | | Linux | mysql-server Ubuntu 20.04 LTS (focal) | 8.0.21-0ubuntu0.20.04.3 | [mysql-server 8.0.21-0ubuntu0.20.04.3](https://patchblox.com/security/data/fix/linux/ubuntu-focal-mysql-server-8.0.21-0ubuntu0.20.04.3.md) | Jan 20, 2021 | | Linux | mysql-server Ubuntu 24.10 (oracular) | 8.0.21-0ubuntu3 | [mysql-server 8.0.21-0ubuntu3](https://patchblox.com/security/data/fix/linux/ubuntu-oracular-mysql-server-8.0.21-0ubuntu3.md) | Jan 16, 2026 | | Linux | mysql-server ol 8 | 0:8.0.21-1.module+el8.2.0+7793+cfe2b687 | [ELSA-2020-3732](https://patchblox.com/security/data/fix/linux/elsa-2020-3732.md) | Sep 16, 2020 | | Linux | mysql-server-5.7 Ubuntu 18.04.6 LTS (bionic) | 5.7.31-0ubuntu0.18.04.1 | [mysql-server-5.7 5.7.31-0ubuntu0.18.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-mysql-server-5.7-5.7.31-0ubuntu0.18.04.1.md) | Apr 22, 2021 | | Linux | mysql-server-8.0 Ubuntu 20.04 LTS (focal) | 8.0.21-0ubuntu0.20.04.3 | [mysql-server-8.0 8.0.21-0ubuntu0.20.04.3](https://patchblox.com/security/data/fix/linux/ubuntu-focal-mysql-server-8.0-8.0.21-0ubuntu0.20.04.3.md) | Jan 20, 2021 | | Linux | mysql-server-8.0 Ubuntu 24.10 (oracular) | 8.0.21-0ubuntu3 | [mysql-server-8.0 8.0.21-0ubuntu3](https://patchblox.com/security/data/fix/linux/ubuntu-oracular-mysql-server-8.0-8.0.21-0ubuntu3.md) | Jan 16, 2026 | | Linux | mysql-server-core-5.7 Ubuntu 18.04.6 LTS (bionic) | 5.7.31-0ubuntu0.18.04.1 | [mysql-server-core-5.7 5.7.31-0ubuntu0.18.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-mysql-server-core-5.7-5.7.31-0ubuntu0.18.04.1.md) | Apr 22, 2021 | | Linux | mysql-server-core-8.0 Ubuntu 20.04 LTS (focal) | 8.0.21-0ubuntu0.20.04.3 | [mysql-server-core-8.0 8.0.21-0ubuntu0.20.04.3](https://patchblox.com/security/data/fix/linux/ubuntu-focal-mysql-server-core-8.0-8.0.21-0ubuntu0.20.04.3.md) | Jan 20, 2021 | | Linux | mysql-server-core-8.0 Ubuntu 24.10 (oracular) | 8.0.21-0ubuntu3 | [mysql-server-core-8.0 8.0.21-0ubuntu3](https://patchblox.com/security/data/fix/linux/ubuntu-oracular-mysql-server-core-8.0-8.0.21-0ubuntu3.md) | Jan 16, 2026 | | Linux | mysql-source-5.7 Ubuntu 18.04.6 LTS (bionic) | 5.7.31-0ubuntu0.18.04.1 | [mysql-source-5.7 5.7.31-0ubuntu0.18.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-mysql-source-5.7-5.7.31-0ubuntu0.18.04.1.md) | Apr 22, 2021 | | Linux | mysql-source-8.0 Ubuntu 20.04 LTS (focal) | 8.0.21-0ubuntu0.20.04.3 | [mysql-source-8.0 8.0.21-0ubuntu0.20.04.3](https://patchblox.com/security/data/fix/linux/ubuntu-focal-mysql-source-8.0-8.0.21-0ubuntu0.20.04.3.md) | Jan 20, 2021 | | Linux | mysql-source-8.0 Ubuntu 24.10 (oracular) | 8.0.21-0ubuntu3 | [mysql-source-8.0 8.0.21-0ubuntu3](https://patchblox.com/security/data/fix/linux/ubuntu-oracular-mysql-source-8.0-8.0.21-0ubuntu3.md) | Jan 16, 2026 | | Linux | mysql-test RHEL 8 | 0:8.0.21-1.module+el8.2.0+7855+47abd494 | [RHSA-2020:3732](https://patchblox.com/security/data/fix/linux/rhsa-2020-3732.md) | Sep 14, 2020 | | Linux | mysql-test ol 8 | 0:8.0.21-1.module+el8.2.0+7793+cfe2b687 | [ELSA-2020-3732](https://patchblox.com/security/data/fix/linux/elsa-2020-3732.md) | Sep 16, 2020 | | Linux | mysql-testsuite Ubuntu 18.04.6 LTS (bionic) | 5.7.31-0ubuntu0.18.04.1 | [mysql-testsuite 5.7.31-0ubuntu0.18.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-mysql-testsuite-5.7.31-0ubuntu0.18.04.1.md) | Apr 22, 2021 | | Linux | mysql-testsuite Ubuntu 20.04 LTS (focal) | 8.0.21-0ubuntu0.20.04.3 | [mysql-testsuite 8.0.21-0ubuntu0.20.04.3](https://patchblox.com/security/data/fix/linux/ubuntu-focal-mysql-testsuite-8.0.21-0ubuntu0.20.04.3.md) | Jan 20, 2021 | | Linux | mysql-testsuite Ubuntu 24.10 (oracular) | 8.0.21-0ubuntu3 | [mysql-testsuite 8.0.21-0ubuntu3](https://patchblox.com/security/data/fix/linux/ubuntu-oracular-mysql-testsuite-8.0.21-0ubuntu3.md) | Jan 16, 2026 | | Linux | mysql-testsuite-5.7 Ubuntu 18.04.6 LTS (bionic) | 5.7.31-0ubuntu0.18.04.1 | [mysql-testsuite-5.7 5.7.31-0ubuntu0.18.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-mysql-testsuite-5.7-5.7.31-0ubuntu0.18.04.1.md) | Apr 22, 2021 | | Linux | mysql-testsuite-8.0 Ubuntu 20.04 LTS (focal) | 8.0.21-0ubuntu0.20.04.3 | [mysql-testsuite-8.0 8.0.21-0ubuntu0.20.04.3](https://patchblox.com/security/data/fix/linux/ubuntu-focal-mysql-testsuite-8.0-8.0.21-0ubuntu0.20.04.3.md) | Jan 20, 2021 | | Linux | mysql-testsuite-8.0 Ubuntu 24.10 (oracular) | 8.0.21-0ubuntu3 | [mysql-testsuite-8.0 8.0.21-0ubuntu3](https://patchblox.com/security/data/fix/linux/ubuntu-oracular-mysql-testsuite-8.0-8.0.21-0ubuntu3.md) | Jan 16, 2026 | --- Data as of 2026-11-08T13:06:02Z UTC. 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