# CVE-2020-14771: libmysqlclient21: Vulnerability in the MySQL Server product of Oracle MySQL (component:Server: Security: LDAP Auth)

CVE-2020-14771 is fixed in 18 products on 1 platform, first by libmysqlclient20 5.7.32-0ubuntu0.18.04.1, released October 21, 2020. It is not reported as exploited. Patch Radar priority: Routine.

- Web page: https://patchblox.com/security/cve/CVE-2020-14771
- Priority: Routine
- CVSS: n/a (Medium)
- EPSS: 0.0131
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Oct 21, 2020

## Description

Vulnerability in the MySQL Server product of Oracle MySQL (component:Server: Security: LDAP Auth). Supported versions that are affected are5.7.31 and prior and 8.0.21 and prior. Difficult to exploit vulnerabilityallows high privileged attacker with network access via multiple protocolsto compromise MySQL Server. Successful attacks of this vulnerability canresult in unauthorized ability to cause a partial denial of service(partial DOS) of MySQL Server. CVSS 3.1 Base Score 2.2 (Availabilityimpacts). CVSS Vector: (CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:N/I:N/A:L).

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | libmysqlclient20 Ubuntu 18.04.6 LTS (bionic) | 5.7.32-0ubuntu0.18.04.1 | [libmysqlclient20 5.7.32-0ubuntu0.18.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-libmysqlclient20-5.7.32-0ubuntu0.18.04.1.md) | Oct 21, 2020 |
| Linux | libmysqlclient21 Ubuntu 20.04 LTS (focal) | 8.0.22-0ubuntu0.20.04.2 | [libmysqlclient21 8.0.22-0ubuntu0.20.04.2](https://patchblox.com/security/data/fix/linux/ubuntu-focal-libmysqlclient21-8.0.22-0ubuntu0.20.04.2.md) | Jul 21, 2021 |
| Linux | libmysqlclient21 Ubuntu 24.10 (oracular) | 8.0.22-0ubuntu0.20.10.2 | [libmysqlclient21 8.0.22-0ubuntu0.20.10.2](https://patchblox.com/security/data/fix/linux/ubuntu-oracular-libmysqlclient21-8.0.22-0ubuntu0.20.10.2.md) | Jan 16, 2026 |
| Linux | mysql-client Ubuntu 18.04.6 LTS (bionic) | 5.7.32-0ubuntu0.18.04.1 | [mysql-client 5.7.32-0ubuntu0.18.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-mysql-client-5.7.32-0ubuntu0.18.04.1.md) | Oct 21, 2020 |
| Linux | mysql-client Ubuntu 20.04 LTS (focal) | 8.0.22-0ubuntu0.20.04.2 | [mysql-client 8.0.22-0ubuntu0.20.04.2](https://patchblox.com/security/data/fix/linux/ubuntu-focal-mysql-client-8.0.22-0ubuntu0.20.04.2.md) | Jul 21, 2021 |
| Linux | mysql-client Ubuntu 24.10 (oracular) | 8.0.22-0ubuntu0.20.10.2 | [mysql-client 8.0.22-0ubuntu0.20.10.2](https://patchblox.com/security/data/fix/linux/ubuntu-oracular-mysql-client-8.0.22-0ubuntu0.20.10.2.md) | Jan 16, 2026 |
| Linux | mysql-client-5.7 Ubuntu 18.04.6 LTS (bionic) | 5.7.32-0ubuntu0.18.04.1 | [mysql-client-5.7 5.7.32-0ubuntu0.18.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-mysql-client-5.7-5.7.32-0ubuntu0.18.04.1.md) | Oct 21, 2020 |
| Linux | mysql-client-8.0 Ubuntu 20.04 LTS (focal) | 8.0.22-0ubuntu0.20.04.2 | [mysql-client-8.0 8.0.22-0ubuntu0.20.04.2](https://patchblox.com/security/data/fix/linux/ubuntu-focal-mysql-client-8.0-8.0.22-0ubuntu0.20.04.2.md) | Jul 21, 2021 |
| Linux | mysql-client-8.0 Ubuntu 24.10 (oracular) | 8.0.22-0ubuntu0.20.10.2 | [mysql-client-8.0 8.0.22-0ubuntu0.20.10.2](https://patchblox.com/security/data/fix/linux/ubuntu-oracular-mysql-client-8.0-8.0.22-0ubuntu0.20.10.2.md) | Jan 16, 2026 |
| Linux | mysql-client-core-5.7 Ubuntu 18.04.6 LTS (bionic) | 5.7.32-0ubuntu0.18.04.1 | [mysql-client-core-5.7 5.7.32-0ubuntu0.18.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-mysql-client-core-5.7-5.7.32-0ubuntu0.18.04.1.md) | Oct 21, 2020 |
| Linux | mysql-client-core-8.0 Ubuntu 20.04 LTS (focal) | 8.0.22-0ubuntu0.20.04.2 | [mysql-client-core-8.0 8.0.22-0ubuntu0.20.04.2](https://patchblox.com/security/data/fix/linux/ubuntu-focal-mysql-client-core-8.0-8.0.22-0ubuntu0.20.04.2.md) | Jul 21, 2021 |
| Linux | mysql-client-core-8.0 Ubuntu 24.10 (oracular) | 8.0.22-0ubuntu0.20.10.2 | [mysql-client-core-8.0 8.0.22-0ubuntu0.20.10.2](https://patchblox.com/security/data/fix/linux/ubuntu-oracular-mysql-client-core-8.0-8.0.22-0ubuntu0.20.10.2.md) | Jan 16, 2026 |
| Linux | mysql-router Ubuntu 20.04 LTS (focal) | 8.0.22-0ubuntu0.20.04.2 | [mysql-router 8.0.22-0ubuntu0.20.04.2](https://patchblox.com/security/data/fix/linux/ubuntu-focal-mysql-router-8.0.22-0ubuntu0.20.04.2.md) | Jul 21, 2021 |
| Linux | mysql-router Ubuntu 24.10 (oracular) | 8.0.22-0ubuntu0.20.10.2 | [mysql-router 8.0.22-0ubuntu0.20.10.2](https://patchblox.com/security/data/fix/linux/ubuntu-oracular-mysql-router-8.0.22-0ubuntu0.20.10.2.md) | Jan 16, 2026 |
| Linux | mysql-server Ubuntu 18.04.6 LTS (bionic) | 5.7.32-0ubuntu0.18.04.1 | [mysql-server 5.7.32-0ubuntu0.18.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-mysql-server-5.7.32-0ubuntu0.18.04.1.md) | Oct 21, 2020 |
| Linux | mysql-server Ubuntu 20.04 LTS (focal) | 8.0.22-0ubuntu0.20.04.2 | [mysql-server 8.0.22-0ubuntu0.20.04.2](https://patchblox.com/security/data/fix/linux/ubuntu-focal-mysql-server-8.0.22-0ubuntu0.20.04.2.md) | Jul 21, 2021 |
| Linux | mysql-server Ubuntu 24.10 (oracular) | 8.0.22-0ubuntu0.20.10.2 | [mysql-server 8.0.22-0ubuntu0.20.10.2](https://patchblox.com/security/data/fix/linux/ubuntu-oracular-mysql-server-8.0.22-0ubuntu0.20.10.2.md) | Jan 16, 2026 |
| Linux | mysql-server-5.7 Ubuntu 18.04.6 LTS (bionic) | 5.7.32-0ubuntu0.18.04.1 | [mysql-server-5.7 5.7.32-0ubuntu0.18.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-mysql-server-5.7-5.7.32-0ubuntu0.18.04.1.md) | Oct 21, 2020 |
| Linux | mysql-server-8.0 Ubuntu 20.04 LTS (focal) | 8.0.22-0ubuntu0.20.04.2 | [mysql-server-8.0 8.0.22-0ubuntu0.20.04.2](https://patchblox.com/security/data/fix/linux/ubuntu-focal-mysql-server-8.0-8.0.22-0ubuntu0.20.04.2.md) | Jul 21, 2021 |
| Linux | mysql-server-8.0 Ubuntu 24.10 (oracular) | 8.0.22-0ubuntu0.20.10.2 | [mysql-server-8.0 8.0.22-0ubuntu0.20.10.2](https://patchblox.com/security/data/fix/linux/ubuntu-oracular-mysql-server-8.0-8.0.22-0ubuntu0.20.10.2.md) | Jan 16, 2026 |
| Linux | mysql-server-core-5.7 Ubuntu 18.04.6 LTS (bionic) | 5.7.32-0ubuntu0.18.04.1 | [mysql-server-core-5.7 5.7.32-0ubuntu0.18.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-mysql-server-core-5.7-5.7.32-0ubuntu0.18.04.1.md) | Oct 21, 2020 |
| Linux | mysql-server-core-8.0 Ubuntu 20.04 LTS (focal) | 8.0.22-0ubuntu0.20.04.2 | [mysql-server-core-8.0 8.0.22-0ubuntu0.20.04.2](https://patchblox.com/security/data/fix/linux/ubuntu-focal-mysql-server-core-8.0-8.0.22-0ubuntu0.20.04.2.md) | Jul 21, 2021 |
| Linux | mysql-server-core-8.0 Ubuntu 24.10 (oracular) | 8.0.22-0ubuntu0.20.10.2 | [mysql-server-core-8.0 8.0.22-0ubuntu0.20.10.2](https://patchblox.com/security/data/fix/linux/ubuntu-oracular-mysql-server-core-8.0-8.0.22-0ubuntu0.20.10.2.md) | Jan 16, 2026 |
| Linux | mysql-source-5.7 Ubuntu 18.04.6 LTS (bionic) | 5.7.32-0ubuntu0.18.04.1 | [mysql-source-5.7 5.7.32-0ubuntu0.18.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-mysql-source-5.7-5.7.32-0ubuntu0.18.04.1.md) | Oct 21, 2020 |
| Linux | mysql-source-8.0 Ubuntu 20.04 LTS (focal) | 8.0.22-0ubuntu0.20.04.2 | [mysql-source-8.0 8.0.22-0ubuntu0.20.04.2](https://patchblox.com/security/data/fix/linux/ubuntu-focal-mysql-source-8.0-8.0.22-0ubuntu0.20.04.2.md) | Jul 21, 2021 |
| Linux | mysql-source-8.0 Ubuntu 24.10 (oracular) | 8.0.22-0ubuntu0.20.10.2 | [mysql-source-8.0 8.0.22-0ubuntu0.20.10.2](https://patchblox.com/security/data/fix/linux/ubuntu-oracular-mysql-source-8.0-8.0.22-0ubuntu0.20.10.2.md) | Jan 16, 2026 |
| Linux | mysql-testsuite Ubuntu 18.04.6 LTS (bionic) | 5.7.32-0ubuntu0.18.04.1 | [mysql-testsuite 5.7.32-0ubuntu0.18.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-mysql-testsuite-5.7.32-0ubuntu0.18.04.1.md) | Oct 21, 2020 |
| Linux | mysql-testsuite Ubuntu 20.04 LTS (focal) | 8.0.22-0ubuntu0.20.04.2 | [mysql-testsuite 8.0.22-0ubuntu0.20.04.2](https://patchblox.com/security/data/fix/linux/ubuntu-focal-mysql-testsuite-8.0.22-0ubuntu0.20.04.2.md) | Jul 21, 2021 |
| Linux | mysql-testsuite Ubuntu 24.10 (oracular) | 8.0.22-0ubuntu0.20.10.2 | [mysql-testsuite 8.0.22-0ubuntu0.20.10.2](https://patchblox.com/security/data/fix/linux/ubuntu-oracular-mysql-testsuite-8.0.22-0ubuntu0.20.10.2.md) | Jan 16, 2026 |
| Linux | mysql-testsuite-5.7 Ubuntu 18.04.6 LTS (bionic) | 5.7.32-0ubuntu0.18.04.1 | [mysql-testsuite-5.7 5.7.32-0ubuntu0.18.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-mysql-testsuite-5.7-5.7.32-0ubuntu0.18.04.1.md) | Oct 21, 2020 |
| Linux | mysql-testsuite-8.0 Ubuntu 20.04 LTS (focal) | 8.0.22-0ubuntu0.20.04.2 | [mysql-testsuite-8.0 8.0.22-0ubuntu0.20.04.2](https://patchblox.com/security/data/fix/linux/ubuntu-focal-mysql-testsuite-8.0-8.0.22-0ubuntu0.20.04.2.md) | Jul 21, 2021 |
| Linux | mysql-testsuite-8.0 Ubuntu 24.10 (oracular) | 8.0.22-0ubuntu0.20.10.2 | [mysql-testsuite-8.0 8.0.22-0ubuntu0.20.10.2](https://patchblox.com/security/data/fix/linux/ubuntu-oracular-mysql-testsuite-8.0-8.0.22-0ubuntu0.20.10.2.md) | Jan 16, 2026 |

---

Data as of 2026-11-08T13:06:02Z UTC. Source: Patchblox Patch Radar (https://patchblox.com/security/patch-radar). Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

Free to use with attribution: show "Data: Patchblox Patch Radar" with a link to https://patchblox.com/security/patch-radar. Terms, including what needs a written agreement: https://patchblox.com/security/patch-radar/use-the-data

Product names, logos and trademarks shown on Patch Radar belong to their respective owners. They are used only to identify the software each security fix applies to and to help readers find their platform. Their use does not imply any affiliation with, or endorsement by, those owners, and Patchblox is not affiliated with any of them.