# CVE-2021-2001: mecab: MySQL is a multi-user, multi-threaded SQL database server

CVE-2021-2001 is fixed in 19 products on 1 platform, first by libmysqlclient20 5.7.31-0ubuntu0.18.04.1, released April 22, 2021. It is not reported as exploited. Patch Radar priority: Routine.

- Web page: https://patchblox.com/security/cve/CVE-2021-2001
- Priority: Routine
- CVSS: 4.9 (Moderate)
- EPSS: 0.0223
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Jan 20, 2021

## Description

MySQL is a multi-user, multi-threaded SQL database server. It consists of the MySQL server daemon (mysqld) and many client programs and libraries.  The following packages have been upgraded to a later upstream version: mysql (8.0.26). (BZ#1996693)  Security Fix(es):  * mysql: Server: Stored Procedure multiple vulnerabilities (CVE-2020-14672, CVE-2021-2046, CVE-2021-2072, CVE-2021-2081, CVE-2021-2215, CVE-2021-2217, CVE-2021-2293, CVE-2021-2304, CVE-2021-2424)  * mysql: Server: FTS multiple vulnerabilities (CVE-2020-14765, CVE-2020-14789, CVE-2020-14804)  * mysql: Server: Optimizer multiple vulnerabilities (CVE-2020-14769, CVE-2020-14773, CVE-2020-14777, CVE-2020-14785, CVE-2020-14793, CVE-2020-14794, CVE-2020-14809, CVE-2020-14830, CVE-2020-14836, CVE-2020-14837, CVE-2020-14839, CVE-2020-14845, CVE-2020-14846, CVE-2020-14861, CVE-2020-14866, CVE-2020-14868, CVE-2020-14888, CVE-2020-14891, CVE-2020-14893, CVE-2021-2001, CVE-2021-2021, CVE-2021-2024, CVE-2021-2030, CVE-2021-2031, CVE-2021-2036, CVE-2021-2055, CVE-2021-2060, CVE-2021-2065, CVE-2021-2070, CVE-2021-2076, CVE-2021-2164, CVE-2021-2169, CVE-2021-2170, CVE-2021-2193, CVE-2021-2203, CVE-2021-2212, CVE-2021-2213, CVE-2021-2230, CVE-2021-2278, CVE-2021-2298, CVE-2021-2299, CVE-2021-2342, CVE-2021-2357, CVE-2021-2367, CVE-2021-2383, CVE-2021-2384, CVE-2021-2387, CVE-2021-2410, CVE-2021-2412, CVE-2021-2418, CVE-2021-2425, CVE-2021-2426, CVE-2021-2427, CVE-2021-2437, CVE-2021-2441, CVE-2021-2444)  * mysql: InnoDB multiple vulnerabilities (CVE-2020-14775, CVE-2020-14776, CVE-2020-14821, CVE-2020-14829, CVE-2020-14848, CVE-2021-2022, CVE-2021-2028, CVE-2021-2048, CVE-2021-2174, CVE-2021-2180, CVE-2021-2194, CVE-2021-2372, CVE-2021-2374, CVE-2021-2389, CVE-2021-2390, CVE-2021-2429, CVE-2020-14791, CVE-2021-2042)  * mysql: Server: PS multiple vulnerabilities (CVE-2020-14786, CVE-2020-14790, CVE-2020-14844, CVE-2021-2422)  * mysql: Server: Security multiple vulnerabilities (CVE-2020-14800, CVE-2020-14838, CVE-2020-14860)  * mysql: Server: Locking multiple vulnerabilities (CVE-2020-14812, CVE-2021-2058, CVE-2021-2402)  * mysql: Server: DML multiple vulnerabilities (CVE-2020-14814, CVE-2020-14828, CVE-2021-2056, CVE-2021-2087, CVE-2021-2088, CVE-2021-2166, CVE-2021-2172, CVE-2021-2196, CVE-2021-2300, CVE-2021-2305, CVE-2021-2370, CVE-2021-2440)  * mysql: Server: Charsets unspecified vulnerability (CVE-2020-14852)  * mysql: Server: DDL multiple vulnerabilities (CVE-2020-14867, CVE-2021-2061, CVE-2021-2122, CVE-2021-2339, CVE-2021-2352, CVE-2021-2399)  * mysql: Server: X Plugin unspecified vulnerability (CVE-2020-14870)  * mysql: Server: Logging unspecified vulnerability (CVE-2020-14873)  * mysql: Server: Replication multiple vulnerabilities (CVE-2021-2002, CVE-2021-2171, CVE-2021-2178, CVE-2021-2202, CVE-2021-2356, CVE-2021-2385)  * mysql: C API multiple vulnerabilities (CVE-2021-2010, CVE-2021-2011)  * mysql: Server: Components Services unspecified vulnerability (CVE-2021-2038)  * mysql: Server: Options unspecified vulnerability (CVE-2021-2146)  * mysql: Server: Group Replication Plugin multiple vulnerabilities (CVE-2021-2179, CVE-2021-2232)  * mysql: Server: Partition multiple vulnerabilities (CVE-2021-2201, CVE-2021-2208)  * mysql: Server: Information Schema multiple vulnerabilities (CVE-2021-2032, CVE-2021-2226, CVE-2021-2301, CVE-2021-2308)  * mysql: Server: Packaging unspecified vulnerability (CVE-2021-2307)  * mysql: Server: Federated unspecified vulnerability (CVE-2021-2354)  * mysql: Server: GIS unspecified vulnerability (CVE-2021-2417)  * mysql: Server: Memcached unspecified vulnerability (CVE-2021-2340)  For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.  Bug Fix(es):  * Segfault and possible DoS with a crafted query (BZ#1996699)

## 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 | mecab RHEL 8 | 0:0.996-1.module+el8.0.0+3898+e09bb8de.9 | [RHSA-2021:3590](https://patchblox.com/security/data/fix/linux/rhsa-2021-3590.md) | Sep 21, 2021 |
| Linux | mecab ol 8 | 0:0.996-1.module+el8.0.0+5253+1dce7bb2.9 | [ELSA-2021-3590](https://patchblox.com/security/data/fix/linux/elsa-2021-3590.md) | Sep 23, 2021 |
| Linux | mecab-ipadic RHEL 8 | 0:2.7.0.20070801-16.module+el8.0.0+3898+e09bb8de | [RHSA-2021:3590](https://patchblox.com/security/data/fix/linux/rhsa-2021-3590.md) | Sep 21, 2021 |
| Linux | mecab-ipadic ol 8 | 0:2.7.0.20070801-16.0.1.module+el8.0.0+5253+1dce7bb2 | [ELSA-2021-3590](https://patchblox.com/security/data/fix/linux/elsa-2021-3590.md) | Sep 23, 2021 |
| Linux | mecab-ipadic-EUCJP RHEL 8 | 0:2.7.0.20070801-16.module+el8.0.0+3898+e09bb8de | [RHSA-2021:3590](https://patchblox.com/security/data/fix/linux/rhsa-2021-3590.md) | Sep 21, 2021 |
| Linux | mecab-ipadic-EUCJP ol 8 | 0:2.7.0.20070801-16.0.1.module+el8.0.0+5253+1dce7bb2 | [ELSA-2021-3590](https://patchblox.com/security/data/fix/linux/elsa-2021-3590.md) | Sep 23, 2021 |
| Linux | mysql RHEL 8 | 0:8.0.26-1.module+el8.4.0+12359+b8928c02 | [RHSA-2021:3590](https://patchblox.com/security/data/fix/linux/rhsa-2021-3590.md) | Sep 21, 2021 |
| Linux | mysql ol 8 | 0:8.0.26-1.module+el8.4.0+20311+30d12931 | [ELSA-2021-3590](https://patchblox.com/security/data/fix/linux/elsa-2021-3590.md) | Sep 23, 2021 |
| 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-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-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-common RHEL 8 | 0:8.0.26-1.module+el8.4.0+12359+b8928c02 | [RHSA-2021:3590](https://patchblox.com/security/data/fix/linux/rhsa-2021-3590.md) | Sep 21, 2021 |
| Linux | mysql-common ol 8 | 0:8.0.26-1.module+el8.4.0+20311+30d12931 | [ELSA-2021-3590](https://patchblox.com/security/data/fix/linux/elsa-2021-3590.md) | Sep 23, 2021 |
| Linux | mysql-devel RHEL 8 | 0:8.0.26-1.module+el8.4.0+12359+b8928c02 | [RHSA-2021:3590](https://patchblox.com/security/data/fix/linux/rhsa-2021-3590.md) | Sep 21, 2021 |
| Linux | mysql-devel ol 8 | 0:8.0.26-1.module+el8.4.0+20311+30d12931 | [ELSA-2021-3590](https://patchblox.com/security/data/fix/linux/elsa-2021-3590.md) | Sep 23, 2021 |
| Linux | mysql-errmsg RHEL 8 | 0:8.0.26-1.module+el8.4.0+12359+b8928c02 | [RHSA-2021:3590](https://patchblox.com/security/data/fix/linux/rhsa-2021-3590.md) | Sep 21, 2021 |
| Linux | mysql-errmsg ol 8 | 0:8.0.26-1.module+el8.4.0+20311+30d12931 | [ELSA-2021-3590](https://patchblox.com/security/data/fix/linux/elsa-2021-3590.md) | Sep 23, 2021 |
| Linux | mysql-libs RHEL 8 | 0:8.0.26-1.module+el8.4.0+12359+b8928c02 | [RHSA-2021:3590](https://patchblox.com/security/data/fix/linux/rhsa-2021-3590.md) | Sep 21, 2021 |
| Linux | mysql-libs ol 8 | 0:8.0.26-1.module+el8.4.0+20311+30d12931 | [ELSA-2021-3590](https://patchblox.com/security/data/fix/linux/elsa-2021-3590.md) | Sep 23, 2021 |
| Linux | mysql-server RHEL 8 | 0:8.0.26-1.module+el8.4.0+12359+b8928c02 | [RHSA-2021:3590](https://patchblox.com/security/data/fix/linux/rhsa-2021-3590.md) | Sep 21, 2021 |
| 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 ol 8 | 0:8.0.26-1.module+el8.4.0+20311+30d12931 | [ELSA-2021-3590](https://patchblox.com/security/data/fix/linux/elsa-2021-3590.md) | Sep 23, 2021 |
| 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-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-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-test RHEL 8 | 0:8.0.26-1.module+el8.4.0+12359+b8928c02 | [RHSA-2021:3590](https://patchblox.com/security/data/fix/linux/rhsa-2021-3590.md) | Sep 21, 2021 |
| Linux | mysql-test ol 8 | 0:8.0.26-1.module+el8.4.0+20311+30d12931 | [ELSA-2021-3590](https://patchblox.com/security/data/fix/linux/elsa-2021-3590.md) | Sep 23, 2021 |
| 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-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 |

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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