{"id":"UBUNTU-CVE-2021-44647","details":"Lua v5.4.3 and above are affected by SEGV by type confusion in funcnamefromcode function in ldebug.c which can cause a local denial of service.","modified":"2025-07-16T08:15:58.760500Z","published":"2022-01-11T13:15:00Z","withdrawn":"2025-07-18T16:47:04Z","upstream":["CVE-2021-44647"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2021-44647"},{"type":"REPORT","url":"http://lua-users.org/lists/lua-l/2021-11/msg00204.html"},{"type":"REPORT","url":"http://lua-users.org/lists/lua-l/2021-11/msg00195.html"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2021-44647"}],"affected":[{"package":{"name":"lua5.4","ecosystem":"Ubuntu:22.04:LTS","purl":"pkg:deb/ubuntu/lua5.4@5.4.4-1?arch=source&distro=jammy"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.4.4-1"}]}],"versions":["5.4.2-2","5.4.3-1"],"ecosystem_specific":{"binaries":[{"binary_name":"liblua5.4-0","binary_version":"5.4.4-1"},{"binary_name":"liblua5.4-0-dbg","binary_version":"5.4.4-1"},{"binary_name":"liblua5.4-dev","binary_version":"5.4.4-1"},{"binary_name":"lua5.4","binary_version":"5.4.4-1"}],"availability":"No subscription required"},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-44647.json"}}],"schema_version":"1.7.3","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H"},{"type":"Ubuntu","score":"medium"}]}