{"id":"CVE-2020-14771","aliases":["EUVD-2020-6907","GHSA-wjcx-2ffg-vcx9","UBUNTU-CVE-2020-14771","USN-4604-1"],"status":"published","title":"Vulnerability in the MySQL Server product of Oracle MySQL (component: Server: Security: LDAP Auth...","description":"Vulnerability in the MySQL Server product of Oracle MySQL (component: Server: Security: LDAP Auth). Supported versions that are affected are 5.7.31 and prior and 8.0.21 and prior. Difficult to exploit vulnerability allows high privileged attacker with network access via multiple protocols to compromise MySQL Server. Successful attacks of this vulnerability can result in unauthorized ability to cause a partial denial of service (partial DOS) of MySQL Server. CVSS 3.1 Base Score 2.2 (Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:N/I:N/A:L).","severity":{"version":"3.1","score":2.2,"vector":"CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:N/I:N/A:L","level":"low","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-10","score":0.01305,"percentile":0.70771,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"published":"2020-10-21T14:04:24Z","modified":"2026-10-24T10:30:18Z","fixes":[{"ecosystem":"Ubuntu:16.04:LTS","package":"mysql-5.7","fixed_in":["5.7.32-0ubuntu0.16.04.1"],"sources":["osv"]},{"ecosystem":"Ubuntu:18.04:LTS","package":"mysql-5.7","fixed_in":["5.7.32-0ubuntu0.18.04.1"],"sources":["osv"]},{"ecosystem":"Ubuntu:20.04:LTS","package":"mysql-8.0","fixed_in":["8.0.22-0ubuntu0.20.04.2"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"Ubuntu:14.04:LTS","package":"mysql-5.5","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["5.5.32-0ubuntu7","5.5.34-0ubuntu1","5.5.34-0ubuntu2","5.5.35-0ubuntu1","5.5.35+dfsg-1ubuntu1","5.5.37-0ubuntu0.14.04.1","5.5.38-0ubuntu0.14.04.1","5.5.40-0ubuntu0.14.04.1","5.5.41-0ubuntu0.14.04.1","5.5.43-0ubuntu0.14.04.1","5.5.44-0ubuntu0.14.04.1","5.5.46-0ubuntu0.14.04.2","5.5.47-0ubuntu0.14.04.1","5.5.49-0ubuntu0.14.04.1","5.5.50-0ubuntu0.14.04.1","5.5.52-0ubuntu0.14.04.1","5.5.53-0ubuntu0.14.04.1","5.5.54-0ubuntu0.14.04.1","5.5.55-0ubuntu0.14.04.1","5.5.57-0ubuntu0.14.04.1","5.5.58-0ubuntu0.14.04.1","5.5.59-0ubuntu0.14.04.1","5.5.60-0ubuntu0.14.04.1","5.5.61-0ubuntu0.14.04.1","5.5.62-0ubuntu0.14.04.1"]},{"source":"osv","ecosystem":"Ubuntu:16.04:LTS","package":"mysql-5.7","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.7.32-0ubuntu0.16.04.1"}]}],"versions":["5.7.11-0ubuntu4","5.7.11-0ubuntu5","5.7.11-0ubuntu6","5.7.12-0ubuntu1","5.7.12-0ubuntu1.1","5.7.13-0ubuntu0.16.04.2","5.7.15-0ubuntu0.16.04.1","5.7.16-0ubuntu0.16.04.1","5.7.17-0ubuntu0.16.04.1","5.7.17-0ubuntu0.16.04.2","5.7.18-0ubuntu0.16.04.1","5.7.19-0ubuntu0.16.04.1","5.7.20-0ubuntu0.16.04.1","5.7.21-0ubuntu0.16.04.1","5.7.22-0ubuntu0.16.04.1","5.7.23-0ubuntu0.16.04.1","5.7.24-0ubuntu0.16.04.1","5.7.25-0ubuntu0.16.04.2","5.7.26-0ubuntu0.16.04.1","5.7.27-0ubuntu0.16.04.1","5.7.28-0ubuntu0.16.04.2","5.7.29-0ubuntu0.16.04.1","5.7.30-0ubuntu0.16.04.1","5.7.31-0ubuntu0.16.04.1"]},{"source":"osv","ecosystem":"Ubuntu:16.04:LTS","package":"percona-server-5.6","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["5.6.22-rel71.0-0ubuntu2","5.6.22-rel71.0-0ubuntu4","5.6.22-rel71.0-0ubuntu4.1"]},{"source":"osv","ecosystem":"Ubuntu:16.04:LTS","package":"percona-xtradb-cluster-5.6","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["5.6.21-25.8-0ubuntu2","5.6.21-25.8-0ubuntu3","5.6.21-25.8-0ubuntu3.1","5.6.21-25.8-0ubuntu3.2","5.6.34-26.19-0ubuntu0.16.04.1","5.6.34-26.19-0ubuntu0.16.04.2","5.6.37-26.21-0ubuntu0.16.04.1","5.6.37-26.21-0ubuntu0.16.04.2"]},{"source":"osv","ecosystem":"Ubuntu:18.04:LTS","package":"mysql-5.7","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.7.32-0ubuntu0.18.04.1"}]}],"versions":["5.7.19-0ubuntu1","5.7.20-0ubuntu0.17.10.1","5.7.20-1ubuntu1","5.7.21-1ubuntu1","5.7.22-0ubuntu18.04.1","5.7.23-0ubuntu0.18.04.1","5.7.24-0ubuntu0.18.04.1","5.7.25-0ubuntu0.18.04.2","5.7.26-0ubuntu0.18.04.1","5.7.27-0ubuntu0.18.04.1","5.7.28-0ubuntu0.18.04.4","5.7.29-0ubuntu0.18.04.1","5.7.30-0ubuntu0.18.04.1","5.7.31-0ubuntu0.18.04.1"]},{"source":"osv","ecosystem":"Ubuntu:20.04:LTS","package":"mysql-8.0","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"8.0.22-0ubuntu0.20.04.2"}]}],"versions":["8.0.17-0ubuntu2","8.0.17-0ubuntu3","8.0.18-0ubuntu3","8.0.18-0ubuntu4","8.0.18-0ubuntu5","8.0.19-0ubuntu2","8.0.19-0ubuntu3","8.0.19-0ubuntu4","8.0.19-0ubuntu5","8.0.20-0ubuntu0.20.04.1","8.0.21-0ubuntu0.20.04.3","8.0.21-0ubuntu0.20.04.4"]},{"source":"osv","ecosystem":"Ubuntu:16.04:LTS","package":"mysql-5.7","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.7.32-0ubuntu0.16.04.1"}]}],"versions":["5.7.11-0ubuntu4","5.7.11-0ubuntu5","5.7.11-0ubuntu6","5.7.12-0ubuntu1","5.7.12-0ubuntu1.1","5.7.13-0ubuntu0.16.04.2","5.7.15-0ubuntu0.16.04.1","5.7.16-0ubuntu0.16.04.1","5.7.17-0ubuntu0.16.04.1","5.7.17-0ubuntu0.16.04.2","5.7.18-0ubuntu0.16.04.1","5.7.19-0ubuntu0.16.04.1","5.7.20-0ubuntu0.16.04.1","5.7.21-0ubuntu0.16.04.1","5.7.22-0ubuntu0.16.04.1","5.7.23-0ubuntu0.16.04.1","5.7.24-0ubuntu0.16.04.1","5.7.25-0ubuntu0.16.04.2","5.7.26-0ubuntu0.16.04.1","5.7.27-0ubuntu0.16.04.1","5.7.28-0ubuntu0.16.04.2","5.7.29-0ubuntu0.16.04.1","5.7.30-0ubuntu0.16.04.1","5.7.31-0ubuntu0.16.04.1"],"bundled":48},{"source":"osv","ecosystem":"Ubuntu:18.04:LTS","package":"mysql-5.7","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.7.32-0ubuntu0.18.04.1"}]}],"versions":["5.7.19-0ubuntu1","5.7.20-0ubuntu0.17.10.1","5.7.20-1ubuntu1","5.7.21-1ubuntu1","5.7.22-0ubuntu18.04.1","5.7.23-0ubuntu0.18.04.1","5.7.24-0ubuntu0.18.04.1","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corporation","product":"mysql server"}],"references":[{"url":"https://www.oracle.com/security-alerts/cpuoct2020.html","tags":["x_refsource_MISC","x_transferred","Patch","Vendor Advisory","fix","report"]},{"url":"https://security.netapp.com/advisory/ntap-20201023-0003/","tags":["x_refsource_CONFIRM","x_transferred","Third Party Advisory","advisory"]},{"url":"https://security.gentoo.org/glsa/202105-27","tags":["vendor-advisory","x_refsource_GENTOO","x_transferred","Third Party Advisory","advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2020-14771"},{"url":"https://github.com/advisories/GHSA-wjcx-2ffg-vcx9"},{"url":"https://ubuntu.com/security/CVE-2020-14771","tags":["report"]},{"url":"https://ubuntu.com/security/notices/USN-4604-1","tags":["advisory"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2020-14771","tags":["report"]},{"url":"https://ubuntu.com/security/CVE-2020-14672","tags":["report"]},{"url":"https://ubuntu.com/security/CVE-2020-14760","tags":["report"]},{"url":"https://ubuntu.com/security/CVE-2020-14765","tags":["report"]},{"url":"https://ubuntu.com/security/CVE-2020-14769","tags":["report"]},{"url":"https://ubuntu.com/security/CVE-2020-14773","tags":["report"]},{"url":"https://ubuntu.com/security/CVE-2020-14775","tags":["report"]},{"url":"https://ubuntu.com/security/CVE-2020-14776","tags":["report"]},{"url":"https://ubuntu.com/security/CVE-2020-14777","tags":["report"]},{"url":"https://ubuntu.com/security/CVE-2020-14785","tags":["report"]},{"url":"https://ubuntu.com/security/CVE-2020-14786","tags":["report"]},{"url":"https://ubuntu.com/security/CVE-2020-14789","tags":["report"]},{"url":"https://ubuntu.com/security/CVE-2020-14790","tags":["report"]},{"url":"https://ubuntu.com/security/CVE-2020-14791","tags":["report"]},{"url":"https://ubuntu.com/security/CVE-2020-14793","tags":["report"]},{"url":"https://ubuntu.com/security/CVE-2020-14794","tags":["report"]},{"url":"https://ubuntu.com/security/CVE-2020-14800","tags":["report"]},{"url":"https://ubuntu.com/security/CVE-2020-14804","tags":["report"]},{"url":"https://ubuntu.com/security/CVE-2020-14809","tags":["report"]},{"url":"https://ubuntu.com/security/CVE-2020-14812","tags":["report"]},{"url":"https://ubuntu.com/security/CVE-2020-14814","tags":["report"]},{"url":"https://ubuntu.com/security/CVE-2020-14821","tags":["report"]},{"url":"https://ubuntu.com/security/CVE-2020-14827","tags":["report"]},{"url":"https://ubuntu.com/security/CVE-2020-14828","tags":["report"]},{"url":"https://ubuntu.com/security/CVE-2020-14829","tags":["report"]},{"url":"https://ubuntu.com/security/CVE-2020-14830","tags":["report"]},{"url":"https://ubuntu.com/security/CVE-2020-14836","tags":["report"]},{"url":"https://ubuntu.com/security/CVE-2020-14837","tags":["report"]},{"url":"https://ubuntu.com/security/CVE-2020-14838","tags":["report"]},{"url":"https://ubuntu.com/security/CVE-2020-14839","tags":["report"]},{"url":"https://ubuntu.com/security/CVE-2020-14844","tags":["report"]},{"url":"https://ubuntu.com/security/CVE-2020-14845","tags":["report"]},{"url":"https://ubuntu.com/security/CVE-2020-14846","tags":["report"]},{"url":"https://ubuntu.com/security/CVE-2020-14848","tags":["report"]},{"url":"https://ubuntu.com/security/CVE-2020-14852","tags":["report"]},{"url":"https://ubuntu.com/security/CVE-2020-14853","tags":["report"]},{"url":"https://ubuntu.com/security/CVE-2020-14860","tags":["report"]},{"url":"https://ubuntu.com/security/CVE-2020-14861","tags":["report"]},{"url":"https://ubuntu.com/security/CVE-2020-14866","tags":["report"]},{"url":"https://ubuntu.com/security/CVE-2020-14867","tags":["report"]},{"url":"https://ubuntu.com/security/CVE-2020-14868","tags":["report"]},{"url":"https://ubuntu.com/security/CVE-2020-14869","tags":["report"]},{"url":"https://ubuntu.com/security/CVE-2020-14870","tags":["report"]},{"url":"https://ubuntu.com/security/CVE-2020-14873","tags":["report"]},{"url":"https://ubuntu.com/security/CVE-2020-14878","tags":["report"]},{"url":"https://ubuntu.com/security/CVE-2020-14888","tags":["report"]},{"url":"https://ubuntu.com/security/CVE-2020-14891","tags":["report"]},{"url":"https://ubuntu.com/security/CVE-2020-14893","tags":["report"]}],"sources":{"cve":[{"id":"CVE-2020-14771","description":"Vulnerability in the MySQL Server product of Oracle MySQL (component: Server: Security: LDAP Auth). Supported versions that are affected are 5.7.31 and prior and 8.0.21 and prior. Difficult to exploit vulnerability allows high privileged attacker with network access via multiple protocols to compromise MySQL Server. Successful attacks of this vulnerability can result in unauthorized ability to cause a partial denial of service (partial DOS) of MySQL Server. CVSS 3.1 Base Score 2.2 (Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:N/I:N/A:L).","status":"published","published":"2020-10-21T14:04:24Z","modified":"2024-09-26T20:25:59.261Z","cvss":[{"version":"3.1","score":2.2,"vector":"CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:N/I:N/A:L","level":"low","assessor":"cna"}],"updated_at":"2026-11-02T14:35:46.873079Z"}],"euvd":[{"id":"EUVD-2020-6907","description":"Vulnerability in the MySQL Server product of Oracle MySQL (component: Server: Security: LDAP Auth). Supported versions that are affected are 5.7.31 and prior and 8.0.21 and prior. Difficult to exploit vulnerability allows high privileged attacker with network access via multiple protocols to compromise MySQL Server. Successful attacks of this vulnerability can result in unauthorized ability to cause a partial denial of service (partial DOS) of MySQL Server. CVSS 3.1 Base Score 2.2 (Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:N/I:N/A:L).","status":"published","published":"2020-10-21T14:04:24Z","modified":"2024-09-26T20:25:59Z","cvss":[{"version":"3.1","score":2.2,"vector":"CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:N/I:N/A:L","level":"low"}],"updated_at":"2026-11-03T00:28:06.759686Z"}],"ghsa":[{"id":"GHSA-wjcx-2ffg-vcx9","title":"Vulnerability in the MySQL Server product of Oracle MySQL (component: Server: Security: LDAP Auth...","description":"Vulnerability in the MySQL Server product of Oracle MySQL (component: Server: Security: LDAP Auth). Supported versions that are affected are 5.7.31 and prior and 8.0.21 and prior. Difficult to exploit vulnerability allows high privileged attacker with network access via multiple protocols to compromise MySQL Server. Successful attacks of this vulnerability can result in unauthorized ability to cause a partial denial of service (partial DOS) of MySQL Server. CVSS 3.1 Base Score 2.2 (Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:N/I:N/A:L).","status":"published","published":"2022-05-24T17:31:25Z","modified":"2023-01-29T05:04:11Z","cvss":[{"version":"3.1","score":2.2,"vector":"CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:N/I:N/A:L","level":"low"}],"updated_at":"2026-11-02T14:45:29.899073Z"}],"nvd":[{"id":"CVE-2020-14771","description":"Vulnerability in the MySQL Server product of Oracle MySQL (component: Server: Security: LDAP Auth). Supported versions that are affected are 5.7.31 and prior and 8.0.21 and prior. Difficult to exploit vulnerability allows high privileged attacker with network access via multiple protocols to compromise MySQL Server. Successful attacks of this vulnerability can result in unauthorized ability to cause a partial denial of service (partial DOS) of MySQL Server. CVSS 3.1 Base Score 2.2 (Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:N/I:N/A:L).","status":"published","published":"2020-10-21T15:15:17.593Z","modified":"2026-06-17T02:55:29.527Z","cvss":[{"version":"3.1","score":2.2,"vector":"CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:N/I:N/A:L","level":"low","assessor":"secondary"},{"version":"2.0","score":3.5,"vector":"AV:N/AC:M/Au:S/C:N/I:N/A:P","level":"low","assessor":"primary"}],"updated_at":"2026-11-02T14:06:20.704992Z"}],"osv":[{"id":"CVE-2020-14771","description":"Vulnerability in the MySQL Server product of Oracle MySQL (component: Server: Security: LDAP Auth). Supported versions that are affected are 5.7.31 and prior and 8.0.21 and prior. Difficult to exploit vulnerability allows high privileged attacker with network access via multiple protocols to compromise MySQL Server. Successful attacks of this vulnerability can result in unauthorized ability to cause a partial denial of service (partial DOS) of MySQL Server. CVSS 3.1 Base Score 2.2 (Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:N/I:N/A:L).","status":"published","published":"2020-10-21T15:15:17.593Z","modified":"2026-10-24T10:30:18.188730765Z","cvss":[{"version":"3.1","score":2.2,"vector":"CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:N/I:N/A:L","level":"low"}],"updated_at":"2026-11-02T15:44:14.418339Z"},{"id":"UBUNTU-CVE-2020-14771","description":"Vulnerability in the MySQL Server product of Oracle MySQL (component: Server: Security: LDAP Auth). Supported versions that are affected are 5.7.31 and prior and 8.0.21 and prior. Difficult to exploit vulnerability allows high privileged attacker with network access via multiple protocols to compromise MySQL Server. Successful attacks of this vulnerability can result in unauthorized ability to cause a partial denial of service (partial DOS) of MySQL Server. CVSS 3.1 Base Score 2.2 (Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:N/I:N/A:L).","status":"published","published":"2020-10-21T15:15:00Z","modified":"2026-04-22T12:30:36.702762Z","cvss":[{"version":"3.1","score":2.2,"vector":"CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:N/I:N/A:L","level":"low"}],"updated_at":"2026-11-02T15:54:23.344108Z"},{"id":"USN-4604-1","title":"mysql-5.7, mysql-8.0 vulnerabilities","description":"Multiple security issues were discovered in MySQL and this update includes\nnew upstream MySQL versions to fix these issues.\n\nMySQL has been updated to 8.0.22 in Ubuntu 20.04 LTS and Ubuntu 20.10.\nUbuntu 16.04 LTS and Ubuntu 18.04 LTS have been updated to MySQL 5.7.32.\n\nIn addition to security fixes, the updated packages contain bug fixes, new\nfeatures, and possibly incompatible changes.\n\nPlease see the following for more information:\n\nhttps://dev.mysql.com/doc/relnotes/mysql/5.7/en/news-5-7-32.html\n\nhttps://dev.mysql.com/doc/relnotes/mysql/8.0/en/news-8-0-22.html\n\nhttps://www.oracle.com/security-alerts/cpuoct2020.html\n","status":"published","published":"2020-10-27T10:46:47Z","modified":"2026-04-27T18:45:08.312948Z","updated_at":"2026-11-02T16:58:15.159055Z"}]}}