{"id":"CVE-2021-43453","details":"A Heap-based Buffer Overflow vulnerability exists in JerryScript 2.4.0 and prior versions via an out-of-bounds read in parser_parse_for_statement_start in the js-parser-statm.c file. This issue is similar to CVE-2020-29657.","modified":"2026-04-12T03:54:18.595090Z","published":"2022-04-07T21:15:07.517Z","references":[{"type":"REPORT","url":"https://github.com/jerryscript-project/jerryscript/issues/4754"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/jerryscript-project/jerryscript","events":[{"introduced":"0"},{"last_affected":"8ba0d1b6ee5a065a42f3b306771ad8e3c0d819bc"}],"database_specific":{"cpe":"cpe:2.3:a:jerryscript:jerryscript:*:*:*:*:*:*:*:*","extracted_events":[{"introduced":"0"},{"last_affected":"2.4.0"}],"source":"CPE_FIELD"}}],"versions":["v2.0","v2.1.0","v2.2.0","v2.3.0","v2.4.0"],"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2021-43453.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"}]}