# CVE-2018-2755: libmysqlclient20: Vulnerability in the MySQL Server component of Oracle MySQL (subcomponent: Server: Replication)

CVE-2018-2755 is fixed in 10 products on 1 platform, first by libmysqlclient20 5.7.22-0ubuntu18.04.1, released April 17, 2018. It is not reported as exploited. Patch Radar priority: Routine.

- Web page: https://patchblox.com/security/cve/CVE-2018-2755
- Priority: Routine
- CVSS: n/a (Medium)
- EPSS: 0.0085
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Apr 17, 2018

## Description

Vulnerability in the MySQL Server component of Oracle MySQL (subcomponent: Server: Replication). Supported versions that are affected are 5.5.59 and prior, 5.6.39 and prior and 5.7.21 and prior. Difficult to exploit vulnerability allows unauthenticated attacker with logon to the infrastructure where MySQL Server executes to compromise MySQL Server. Successful attacks require human interaction from a person other than the attacker and while the vulnerability is in MySQL Server, attacks may significantly impact additional products. Successful attacks of this vulnerability can result in takeover of MySQL Server. CVSS 3.0 Base Score 7.7 (Confidentiality, Integrity and Availability impacts). CVSS Vector: (CVSS:3.0/AV:L/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H).

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | libmysqlclient20 Ubuntu 18.04.6 LTS (bionic) | 5.7.22-0ubuntu18.04.1 | [libmysqlclient20 5.7.22-0ubuntu18.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-libmysqlclient20-5.7.22-0ubuntu18.04.1.md) | Apr 17, 2018 |
| Linux | mysql-client Ubuntu 18.04.6 LTS (bionic) | 5.7.22-0ubuntu18.04.1 | [mysql-client 5.7.22-0ubuntu18.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-mysql-client-5.7.22-0ubuntu18.04.1.md) | Apr 17, 2018 |
| Linux | mysql-client-5.7 Ubuntu 18.04.6 LTS (bionic) | 5.7.22-0ubuntu18.04.1 | [mysql-client-5.7 5.7.22-0ubuntu18.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-mysql-client-5.7-5.7.22-0ubuntu18.04.1.md) | Apr 17, 2018 |
| Linux | mysql-client-core-5.7 Ubuntu 18.04.6 LTS (bionic) | 5.7.22-0ubuntu18.04.1 | [mysql-client-core-5.7 5.7.22-0ubuntu18.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-mysql-client-core-5.7-5.7.22-0ubuntu18.04.1.md) | Apr 17, 2018 |
| Linux | mysql-server Ubuntu 18.04.6 LTS (bionic) | 5.7.22-0ubuntu18.04.1 | [mysql-server 5.7.22-0ubuntu18.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-mysql-server-5.7.22-0ubuntu18.04.1.md) | Apr 17, 2018 |
| Linux | mysql-server-5.7 Ubuntu 18.04.6 LTS (bionic) | 5.7.22-0ubuntu18.04.1 | [mysql-server-5.7 5.7.22-0ubuntu18.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-mysql-server-5.7-5.7.22-0ubuntu18.04.1.md) | Apr 17, 2018 |
| Linux | mysql-server-core-5.7 Ubuntu 18.04.6 LTS (bionic) | 5.7.22-0ubuntu18.04.1 | [mysql-server-core-5.7 5.7.22-0ubuntu18.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-mysql-server-core-5.7-5.7.22-0ubuntu18.04.1.md) | Apr 17, 2018 |
| Linux | mysql-source-5.7 Ubuntu 18.04.6 LTS (bionic) | 5.7.22-0ubuntu18.04.1 | [mysql-source-5.7 5.7.22-0ubuntu18.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-mysql-source-5.7-5.7.22-0ubuntu18.04.1.md) | Apr 17, 2018 |
| Linux | mysql-testsuite Ubuntu 18.04.6 LTS (bionic) | 5.7.22-0ubuntu18.04.1 | [mysql-testsuite 5.7.22-0ubuntu18.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-mysql-testsuite-5.7.22-0ubuntu18.04.1.md) | Apr 17, 2018 |
| Linux | mysql-testsuite-5.7 Ubuntu 18.04.6 LTS (bionic) | 5.7.22-0ubuntu18.04.1 | [mysql-testsuite-5.7 5.7.22-0ubuntu18.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-mysql-testsuite-5.7-5.7.22-0ubuntu18.04.1.md) | Apr 17, 2018 |

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Data as of 2026-11-07T12:40:37Z 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