{"id":"CVE-2021-2154","details":"Vulnerability in the MySQL Server product of Oracle MySQL (component: Server: DML). Supported versions that are affected are 5.7.33 and prior. Easily exploitable 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 hang or frequently repeatable crash (complete DOS) of MySQL Server. CVSS 3.1 Base Score 4.9 (Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H).","aliases":["BIT-mariadb-2021-2154","BIT-mariadb-min-2021-2154","BIT-mysql-client-2021-2154"],"modified":"2026-05-28T04:06:24.951423777Z","published":"2021-04-22T22:15:12.830Z","related":["ALSA-2022:1556","ALSA-2022:1557","SUSE-RU-2023:3956-1","SUSE-RU-2023:4991-1","SUSE-SU-2021:2605-1","SUSE-SU-2021:2616-1","SUSE-SU-2021:2617-1","SUSE-SU-2021:2634-1","openSUSE-SU-2021:2605-1","openSUSE-SU-2021:2616-1","openSUSE-SU-2021:2617-1","openSUSE-SU-2024:11038-1","openSUSE-SU-2024:11648-1"],"database_specific":{"unresolved_ranges":[{"vendor_product":"fedoraproject:fedora","source":"CPE_STRING","extracted_events":[{"last_affected":"32"},{"last_affected":"33"},{"last_affected":"34"}],"cpes":["cpe:2.3:o:fedoraproject:fedora:32:*:*:*:*:*:*:*","cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:*","cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:*"]}]},"references":[{"type":"WEB","url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/DPA3CTGXPVWKHMCQDVURK4ETH7GE34KK/"},{"type":"WEB","url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/GAU7KW36A6TQGKG3RUITYSVUFIHBY3OT/"},{"type":"WEB","url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/PEF5CRATUGQZUSQU63MHQIDZPOLHW2VE/"},{"type":"ADVISORY","url":"https://security.gentoo.org/glsa/202105-27"},{"type":"ADVISORY","url":"https://security.gentoo.org/glsa/202105-28"},{"type":"ADVISORY","url":"https://security.netapp.com/advisory/ntap-20210513-0002/"},{"type":"ADVISORY","url":"https://www.oracle.com/security-alerts/cpuapr2021.html"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/mariadb/server","events":[{"introduced":"9664240c948a92c22ccda0e1f5a420eb776ddcb1"},{"fixed":"a20195bba5ff695b8c00b8b3f57edced3c1108a6"},{"introduced":"20ae591abd0bfe1bfaee546989ee163f4ef832b1"},{"fixed":"4f143a88bcb36e94e9edba8a3c5b4a350dcd9bf9"},{"introduced":"c761b43451d54eeeecdf3c102906fcce88d4e9d9"},{"fixed":"a4139f8d68bd31e80ff6202c093cd232c194ddfd"},{"introduced":"7c7f9bef28aa566557da31402142f6dd8298ddd2"},{"fixed":"3f55c569514679d98e09e71286ca28a8ac667a71"}],"database_specific":{"source":"CPE_RANGE","cpe":"cpe:2.3:a:mariadb:mariadb:*:*:*:*:*:*:*:*","extracted_events":[{"introduced":"10.2.0"},{"fixed":"10.2.38"},{"introduced":"10.3.0"},{"fixed":"10.3.29"},{"introduced":"10.4.0"},{"fixed":"10.4.19"},{"introduced":"10.5.0"},{"fixed":"10.5.10"}]}}],"versions":["mariadb-10.3.26","mariadb-10.5.4","mariadb-10.2.27","mariadb-10.3.21","mariadb-10.2.13","mariadb-10.5.2","mariadb-10.3.16","mariadb-10.2.31","mariadb-10.3.17","mariadb-10.3.10","mariadb-10.4.11","mariadb-10.2.30","mariadb-10.5.0","mariadb-10.4.10","mariadb-10.3.20","mariadb-10.2.29","mariadb-10.4.9","mariadb-10.3.19","mariadb-10.2.28","mariadb-10.3.18","mariadb-10.4.7","mariadb-10.2.26","mariadb-10.2.25","mariadb-10.2.24","mariadb-10.4.5","mariadb-10.4.4","mariadb-10.2.23","mariadb-10.4.3","mariadb-10.2.22","mariadb-10.3.12","mariadb-10.2.21","mariadb-10.2.20","mariadb-10.2.19","mariadb-10.2.18","mariadb-10.2.16","mariadb-10.3.7","mariadb-10.2.15","mariadb-10.3.6","mariadb-10.2.14","mariadb-10.3.5","mariadb-10.3.4","mariadb-10.2.12","mariadb-10.2.11","mariadb-10.2.10","mariadb-10.3.2","mariadb-10.3.1","mariadb-10.2.5","mariadb-10.3.0","mariadb-10.2.2","mariadb-10.2.1","mariadb-10.2.0"],"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2021-2154.json"}},{"ranges":[{"type":"GIT","repo":"https://github.com/mysql/mysql-server","events":[{"introduced":"0"},{"last_affected":"e5d189ecb9465f4be6235109dd3dbcaab01ddc53"}],"database_specific":{"source":"CPE_RANGE","cpe":"cpe:2.3:a:oracle:mysql:*:*:*:*:*:*:*:*","extracted_events":[{"introduced":"5.7.0"},{"last_affected":"5.7.33"}]}}],"versions":["mysql-5.7.33","mysql-5.7.32","mysql-5.7.31","mysql-5.1.4","mysql-4.0.4","mysql-4.0.2","mysql-3.23.36","mysql-3.23.33","mysql-3.23.32","mysql-3.23.31","mysql-3.23.30-gamma","mysql-3.23.28-gamma","mysql-3.23.22-beta"],"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2021-2154.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H"}]}