{"id":"CVE-2020-2853","details":"Vulnerability in the MySQL Server product of Oracle MySQL (component: Server: Security: Privileges). Supported versions that are affected are 8.0.18 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 3.0 Base Score 4.9 (Availability impacts). CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H).","modified":"2026-04-11T16:25:34.775547Z","published":"2020-04-15T14:15:31.297Z","related":["ALSA-2020:3732","CGA-p8x7-fvch-v5w6"],"references":[{"type":"WEB","url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/TSVLI36TYRTPQGCS24VZQUXCUFOUW4VQ/"},{"type":"WEB","url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/77REFDB7DE4WNKQIRGZTF53RFBQOXQLC/"},{"type":"WEB","url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/SDGBQYS3A36S4CAZPV5YROHYXYZR6LAH/"},{"type":"ADVISORY","url":"https://security.gentoo.org/glsa/202105-27"},{"type":"ADVISORY","url":"https://security.netapp.com/advisory/ntap-20200416-0003/"},{"type":"ADVISORY","url":"https://www.oracle.com/security-alerts/cpuapr2020.html"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/mysql/mysql-server","events":[{"introduced":"270fd3411e3d671a73ed9725940a30080f59ce6d"},{"fixed":"ea7d2e2d16ac03afdd9cb72a972a95981107bf51"}],"database_specific":{"versions":[{"introduced":"8.0.0"},{"fixed":"8.0.19"}]}}],"database_specific":{"vanir_signatures_modified":"2026-04-11T16:25:34Z","vanir_signatures":[{"id":"CVE-2020-2853-7ba491c1","target":{"function":"ref_t::mark_not_partially_updatable","file":"storage/innobase/lob/lob0lob.cc"},"signature_version":"v1","digest":{"function_hash":"268414797295401743171423323680366405200","length":623},"source":"https://github.com/mysql/mysql-server/commit/ea7d2e2d16ac03afdd9cb72a972a95981107bf51","deprecated":false,"signature_type":"Function"},{"id":"CVE-2020-2853-85335a60","target":{"file":"storage/innobase/lob/lob0lob.cc"},"signature_version":"v1","digest":{"threshold":0.9,"line_hashes":["178328081134631892205165699778675444929","297069519883944742228860306989667015308","271109606063349901820849047573123524993"]},"source":"https://github.com/mysql/mysql-server/commit/ea7d2e2d16ac03afdd9cb72a972a95981107bf51","deprecated":false,"signature_type":"Line"},{"id":"CVE-2020-2853-ba81527a","target":{"function":"purge","file":"storage/innobase/lob/lob0purge.cc"},"signature_version":"v1","digest":{"function_hash":"332510893913262879819453630442491115668","length":3285},"source":"https://github.com/mysql/mysql-server/commit/ea7d2e2d16ac03afdd9cb72a972a95981107bf51","deprecated":false,"signature_type":"Function"},{"id":"CVE-2020-2853-d821719f","target":{"file":"storage/innobase/lob/lob0purge.cc"},"signature_version":"v1","digest":{"threshold":0.9,"line_hashes":["180778886619526508923404944111269113775","147316919537316689965784322676330417174","5239905161954509642413945198745085468","17024492428593150706336629452115852309","104965365280811678162014628868762321369","282655202815067031575135368237605253571","200985396871617803559027719623855045437"]},"source":"https://github.com/mysql/mysql-server/commit/ea7d2e2d16ac03afdd9cb72a972a95981107bf51","deprecated":false,"signature_type":"Line"},{"id":"CVE-2020-2853-e9f11d86","target":{"file":"storage/innobase/include/lob0lob.h"},"signature_version":"v1","digest":{"threshold":0.9,"line_hashes":["283235786766717374315559903386315292221","192355070266660537871885306096569471401","43630985206282853845868250559889278152","172939939025117458516457434116810536184"]},"source":"https://github.com/mysql/mysql-server/commit/ea7d2e2d16ac03afdd9cb72a972a95981107bf51","deprecated":false,"signature_type":"Line"}],"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-2853.json","unresolved_ranges":[{"events":[{"introduced":"0"},{"last_affected":"30"}]},{"events":[{"introduced":"0"},{"last_affected":"31"}]},{"events":[{"introduced":"0"},{"last_affected":"32"}]},{"events":[{"introduced":"7.3"}]},{"events":[{"introduced":"9.5"}]}]}}],"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"}]}